2006 northstar v8 problems forum. You'll NEED all the info.
2006 northstar v8 problems forum It’s the 3rd Northstar powered caddy I’ve owned, I’ve never had any head gasket or electrical problems. 9k 3)repair headgasket. Learn More #2: Engine Misses & Car Dies When Slowing 2006 DTS Sep 20, 2023 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Dec 1, 2020 · If you drive a Cadillac with a Northstar 4. In 2002 the block and various other components were updated. . 6L (279 cu in) engine incorporating two intake and two exhaust valves per cylinder with individual cylinder head mounted camshafts for intake and exhaust functions (DOHC). How many 2001 eldorado northstar engines or cadillacs have had this problem, and being it is a known problem why is it not a recall or covered under warranty if the car is older than 4 years. Sporadic running issues NEED EXPERT PLZ HELP as stated in my previous post there are no current codes other than a problem with the AC which is not the issue. 1 version, still have some weak links from the original design, which was intended solely for downsized FWD DeVilles and Fleetwoods. Eldo, I changed title of the post to garner more responses from new members. Jul 26, 2016 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Jul 27, 2014 · STS Forum - 2005-2012 2006 sts4 northstar. Does the VVT Feb 25, 2006 · 10:1 is the current compression ratio of the 4. Sep 6, 2015 · See your identical thread in Engines; Northstar. It should be included in the great engines of today. 5 headbolts 00-03 Northstar has M11x1. Oct 28, 2007 · Re: Definitive Northstar Headgasket Thread Done. ALSO May 8, 2013 · The 273 rear in the base rwd v8 will net good mpg while the awd with its greater mass and 323 gearing will eat fuel like a fat kid eats cupcakes. Jun 20, 2007 · Informal Lounge, Introductions, General Discussion CTS First Generation Forum - 2003-2007 Seville and Eldorado Forum FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Jan 13, 2022 · The 2000 - 2004 FWD Northstar PCM has not been cracked yet. Jul 10, 2024 · The Cadillac DTS, a renowned luxury sedan, was manufactured by General Motors from 2006 to 2011. Stock Northstar valve springs are 1. No idea of what your physical arrangement is. The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. This Northstar does not have VVT - and that feature apparently compounds chain/tensioner/guide wear problems. May 17, 2009 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Jul 26, 2011 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Jun 24, 2020 · Moved from Tech Tips to the Northstar forum. You wouldn’t “feel” the timing get retarded any cause it’s VVT anyway. I could get either a Northstar or Ford's 4. The current 3. It's somewhere in the deville threads. The headgaskets are the weak link in a northstar. 555" (39. A cornerstone of older Cadillac models, the Northstar engine was hailed for its cutting-edge technology, becoming synonymous with the Cadillac brand. The Northstar L37 engines built before 2000 do not force the rear washers into the block. If you have the facilities to fix a headgasket on a northstar, or if you can get a car with a history of coolant changes on time, then either should be perfectly reliable. He claims that the earlier engine block castings were prone to fail due to porasity in the casting. M. And with the ‘Northstar Condition’ affecting Aug 12, 2013 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Dec 21, 2010 · The LD8 is tuned for more torque, while the L37 is tuned for responsiveness. I have 160,000 miles on my caddy, and it runs hot at 50mph+ and I have four options. I own a 2006 Buick Lucerne with the 4. My wife's 2007 STS spent its first year as a rental and was likely driven hard. 4 seconds with the 200hp 4. 6L V6 may have been the replacement to the 3. 4 supercharged V-8 in HotRod magazine. However, the 4. If the heads have problems you might as well replace the whole engine. Google "cadillac forums northstar water pump drive tensioner pulley replacement". Guess what eventually happens to the half case gasket? Alternator jobs require front bumper removal. Your 2006 "DTS" is a different car - in many ways - from Parker T98's STS. 9. Hardware setup was as per the extra manual (many thanks to wopontour, Bruce Bowling, Al Grippo, Eric Fahlgren, James Murray, Philip Ringwood, Phil Tobin, and everyone else who generously contributes their efforts and wisdom to the creation and development of this incredible Yeah the 3800 was preferred, but anything beats the 2013 Elantra engine. Jun 17, 2014 · That's what I'm trying to say actually. 6 Northstar. Throughout its production span, every model was equipped with the Cadillac Northstar V8 engine, ensuring robust performance. Aug 26, 2011 · I have a 2006 STS 4. 0 Headbolts (Upper row are same length as 00-03), also the 04+ don't fail nearly as much as the pre-04 Northstars, though we have had a few in the shop with stripped headbolts. There are two available engines: a 3. Mar 29, 2024 · The Cadillac Northstar engine is one of many GM creations, appearing on the market from 1993-2011. But keep an eye on both Wester's Garage and Northstar Performance in Canada. Jun 22, 2008 · GM/Cadillac has a TSB (Technical Service Bulletin) out on acceptable Northstar oil consumption for engines in excellent mechanical condition with less than 36,000 miles - 2,000 miles per quart. Everything else is equal. Stickies, marked with a push pin, are necessary, timeless info in any forum of interest. Jan 18, 2007 · I have some great 03 programs they are very nice, but I am not finished. 6 engines have problems with stretching timing chains. 1416 Views 5 Replies 5 Participants Last post by 1BadCadSTS, Jul 28, 2014. A compression check is usually inconclusive in diagnosing Northstar head gasket problems caused by failing cylinder block head bolt hole threads. If you have a 4. 6 Litre northstar v8. 6 V6. Feb 14, 2011 · at 60,000 miles the differential got loose and started thumping on hard acceleration and downshifts when slowing down, when checked the fluid looked like neversieze and there were fingernail sized chunks of gear in the fluid, upon investigation the diff seals were replaced by Cadillac on recall at 15,000 miles, yet they refused to do anything about it even though it was obviously a factory Aug 8, 2016 · The 2000 redesign cut way down on the head bolt thread problems. 51mm) free height 1. It now has about 55,000 miles. 93mm). It is randomly overheating. Mar 10, 2021 · 2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. When I purchased the vehicle the check engine light would come on intermittently without any noticeable change in the way it ran. 1416 2006 sts4 northstar. Northstar Excessive Oil Consumption. You'll NEED all the info. Mar 13, 2008 · I'm making the move to buy the STS, but I need some insight on the engines. 136" (3. 27mm) spring diameter 6 coilsthe 3sgte stock spring1. 4. The Northstar, frankly, is 10 pounds of shit in a 7 pound bag. This is a temporary solution to a well-known Apr 7, 2011 · Informal Lounge, Introductions, General Discussion CTS First Generation Forum - 2003-2007 Seville and Eldorado Forum FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Dec 23, 2022 · Do Google searches for "cadillac forums northstar purge line" and "cadillac forums northstar water pump tensioner pulley". 9 (the 4. 6 supercharged seconds! Sep 22, 2011 · I am currently looking at a 1999 sts with the northstar v8 and i have some questions / concerns. 6 engine, you’ve probably found yourself dealing with a nonstop oil leak. Explore common issues with the 2006 Cadillac XLR, including steering sensor failures and gas cap problems. Jan 17, 2011 · As a casual observer who will be on the hunt for an STS-V in a little over a year, I am impressed with the lack of "Northstar issues" reported here in comparison to the older, FWD engines. 6 waterpump help Please The full procedure with torque values is in the online service manuals at www. most 04 and all 05+ have the updates head bolt thread pitch, these seem to hold up pretty well but we still have had a small hand full come in with pulled bolts. This isn't the L37 Northstar that's in the early model Cadillacs that caused a lot problems. alldatadiy. fancy cady, Welcome to CF !!! - but please keep your questions on your problems in your own threads. Below are their common problems. 6 it will have. It can rev to 8000 rpm using stock valve springs and is a 2 liter engine. That said, here is a complete breakdown of each common problem, which Northstar generation is most affected by them, and the cost to fix them. DTS 4. Stay away from the 01 and prior. May 13, 2010 · The Northstar V8 VIN Code 9 or Y is a 4. Oct 4, 2024 · Lastly, the 2006 Buick Lucerne Northstar V8 problems include issues with the cooling and oiling systems. Jun 17, 2020 · Well this must be a 2006 thing with the 4. Study the pertinent stickys, marked with a push pin, in this forum and in Engines, Northstar. For our Seville/Deville cars we drop the lower air deflector and oil filter adapter and work from underneath > up. For now, I'll leave it here. The purge line has been blown out in the past and the thermostat has been replaced a couple years ago. Every one pertains in some way to a sensor which are all tied into the emissions system. as you all know it may be two months. A scan said it was running lean on bank A or B and suggested injector cleaner or MAF sensor cleaning. I think after the reliability nightmare that was the Northstar as well as with the advancements in smoothness and power made with the LS, Cadillac mostly moved to GM corporate designs (LS/LT, the High Feature V6, and the turbo I4s) with exceptions like the Blackwing V8. The Northstar also predated the LS by a few years so it was established in May 26, 2006 · Same with the 4v. Most of the time it just gets into the red and doesn't actually overheat completely, but there have been a couple of time when the warning message has come on stating to shut the vehicle off. Nov 10, 2019 · I like the later real DTS - Deville Touring Sedan - and do not like the 2006+ wannabe "DTS". Aug 23, 2018 · Another thing about the Northstar: They are built quite similar to the to the Corvette ZR-1 dual cam engines out of the 90's. For example, the 1992 Cadillac deVille Touring Sedan posts a 0-60 of 7. Other OHC engines with a similar spark plug/valve location suffer from the same problem. Every single mechanic in my area just say "headgasket" if you tell them that your Northstar is running hotter than usual or losing coolant, I've been told about needing new headgaskets more than a few times throughout the years and so far every one of them is a lair (once for leaking water pump, once for leaking overflow tank, once for worn radiator cap Feb 23, 2018 · Just recently purchased my 2008 Cadillac STS with Northstar V8 I'm currently at 83,000 miles and was wondering what type of preventive maintenance I can do to keep this car running good other than oil changes and doing the transmission fluid and filter at a hundred thousand miles and the same thing with the spark plugs. The 2005 and later engines had the latest and greatest in bolt hole threads and longer, better head bolts. BUT - you think GM/Cadillac is going to recommend a $1000 job as "normal" maintenance? Fat chance . 6 V8's. The biggest issue i can see is a bellhousing to fit a good manual trans. The thread was only started to ask if changes were made in the Northstar design in 2006+ cars. I don't mind it. We have been having numerous check engine codes on our car. The toys and power are worth the trade off to me. LD8 get a 3:11 drive ratio, L37 gets a 3:71 ratio. 6L Northstar® V8 Engine (VINs Y, 9 -- RPOs LD8, L37) Condition Some customers with vehicles built prior to the above VIN breakpoints may comment on any of the following conditions: Feb 25, 2010 · I don't know what the sound of the STS V8 is, though. Theories are: bad thermostat, bad coolant temp sensor, bad f Aug 21, 2014 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Oct 2, 2004 · I used the AC Delco 41-950 plugs and AC Delco wires as recommended passionately on these forums. Aug 4, 2007 · The 99 Deville is up to 95K miles and the engine was beginning to run rough. there are history codes only. Jan 9, 2006 · The Northstar has really intrigued me, I would love to have a DOHC 32 Valve V8 in an american luxury car. It has 160xxx miles the power steering gets tight and loose here and there. It's a V8, so that would be cylinders 1-3-5-7. Dec 1, 2014 · Can anyone tell me--Has Cadillac cured the problem of the oil leak on NorthStar engines---I am on my second "DHS" which I love---Thinking about buying a latter model--say 2008 or 2009. Get repair insights and service options on RepairPal. Jul 18, 2021 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Sep 9, 2020 · I have a 2006 STS 4 with the base 4. ) Jan 30, 2014 · I currently own a 2006 Buick Lucerne (Northstar 4. Nov 17, 2010 · Guss put the engine back together perfectly, the first time, no returning for re-fix, ready to run for years and miles to come. But I would like to know what the biggest problems on the N* are, and what I have to look out for. 1)low mileage engine 2. 6-liter V8 that generates 320 hp and 315 lb-ft of torque. It burns a bit but doesn't leak. Takes wobble sockets and patience. 4 Successfully fired up a Cadillac N* V8 last night on MS1, MSnS E 029q2, with GM DIS and AEM wide Band in a 1951 Kaiser. My last car, a 98 DeVille, I sold with 162,000 miles with very few problems of any kind ever. However, the complexity of Northstar engines meant they quickly became notorious for head gasket failures. Subscribe the car to www. Jul 16, 2015 · Models: 2006 Buick Lucerne -- Built Prior to VIN Breakpoint 6U211174 2006 Cadillac DTS -- Built Prior to VIN Breakpoint 6U211176 with 4. While this is normal for a lot of high-performance V8’s it is mostly caused by the engine design. Aug 21, 2022 · Seriously doubt that it has head gasket problems. I now have a true performance gem of an engine with strong reliability. Opinions vary. I think the current generation of Northstar is more reliable than the 3. 6 engine is said to be far better from 2003 on up with much improved head bolt and intake/head gasket design. She bought a newer Buick enclave in 2012 but loved the Lucerne so much she never drove enclave. On the bright side if you take care of the engine in most cases they will last a long, long time and have plenty of power. The plugs that were in there were Bosch. 31 in). I believe it's the LD8 Northstar, but I know I'm not smooth sailing being trouble free. I am looking for second opinions because he thought it probably was the head gaskets and that the cost would be over two thousand bucks. Please do not post identical threads in different forums - let one thread work for you. As a former owner of a self-destructed Northstar, I was a bit hesitant to get back in the game, but the early returns seem very encouraging. Oct 2, 2013 · Discussions relating to the Northstar System and various drivetrain mechanical/electrical/sensor problems. The old Northstars had problems with the head bolts. Sep 15, 2021 · 4. Feb 17, 2020 · Performing the most wonderful and beloved WP replacement job on my '06 Lucerne V8 4. Both my 2000 & 2001 had the oil leak problem---Just wondering IF CM has cured this problem--My mechanic says he can cure it BUT it will cost approx. Stickys are timeless info for every owner of the vehicles/systems in a vehicle thread. Jun 2, 2019 · Re: 2006 Northstar 4. Aug 18, 2005 · Okay, today I tore down a Toyota 3sgte head, the 3sgte is used the the Toyota MR2. 5k. (The new V6 has had more reports of excessive oil consumption than the V8's. 6 Northstar overheating problem in my 06 Lucerne. It seems the 2000 and up models may still develop problems eventually. Nov 29, 2017 · Re: Northstar Camshaft Sensor - Timing issues? The newerDTS does not have VVT (variable valve timing) thelast DTS was 2011. 44mm) spring diameter 7 coilsI ju Aug 29, 2007 · Crankshaft Position Sensor Replacement 2000 to 2005 Removal Procedure Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist. I have reason to believe it was 'broken in' by a car lover. Feb 13, 2009 · Having just picked up a black on black 2006 DTS Luxury ll with 35,000 miles, with Nav and MoonroofI really love it! I see many threads about the Northstar head gasket problems on this wonderful site, but I haven't seen any on 2006 & up engines. 0L L47, V6 LX5, longitudinally-mounted LH2, and supercharged LC3. There are few that praise their cars. In any of the 2000 - 2005 FWD Northstar cars the engine is really the least of the worries. EDIT: 101,000 miles is high mileage for any car. 1993 -1999 Northstar L37. The check engine lite came on. 66 in) and the piston stroke is 84 mm (3. Oct 19, 2014 · Oil is an insulator, so the small amount on/around the metal shell is inconsequential. 2006 Buick Lucerne problems (15) View all. Feb 17, 2014 · My 2006 V8 STS Northstar sounds like a '49 Olds with a worn out valve train. Other then the heads, drive ratio in the transmission and slight tuning parameters the engines are identical. 3k 2)new rebuilt northstar 2. 0-liter Northstar engine was used in the Oldsmobile Aurora and the Oldsmobile Intrigue, showing how the Northstar engine “good” debate was in full swing Jul 9, 2012 · Not all Northstar V8s will blow their head gaskets. ) BUT CVRSS suspension strut and shock pricing will make your eyes water. He claimed that GM's "fix" was to offer coolant "pucks" to add to your coolant to stop erosion of the engine block. I now have 68,000 miles on it and am concerned about engine problems. In the next two weeks I hope to get a lot done. 064 (27. Dec 27, 2011 · Maybe the other GM guys will chime in, but by 2006 the head bolt /head gasket issue was fixed. The 4. Feb 8, 2012 · You have posted in the wrong forum. Aug 28, 2012 · Re: '94 Seville STS Northstar V8. 6L V8, but with a smaller bore size (87mm vs. 0L V8 was essentially the same engine as the larger 4. magwag Jun 19, 2011 · One minor concern I had with this vehicle is that it was built in October, 2006 but not placed into service until November, 2008. You're soon in the market for suspension parts, engine serpentine belt idler/tensioner pulleys; maybe tires, brakes, and/or wheel bearing work - like any other car. Not nearly as big of a problem with the 4v. Explore 16 common Buick Lucerne problems reported by owners, from fuel filter failures to coolant leaks. I also need to set up a northstar with a manual trans. It's in the stickies in Engines; Northstar forum. I guess most of them last past the warranty period which is all the bean counters care about anyway. Any advice on rather I should go with the 320 HP Northstar V8 or the Plain Jane V6? Thanks Apr 29, 2009 · The problem is prevalent enough that it has spawned an industry to repair just this particular problem and a couple of these specialists are on this forum. 9L V6 Edit - I didn’t see your question about Northstar costs. 011" (25. I have a 03' Cadillac Deville with the 275 HP Northstar V8 and love the power, but lookin for somethin equal without loosing too much power. Ouch! Standard procedure for this problem is to pull the motor and replace the dual pan setup. Northstar engines are known to consume up to 1 quart of oil every 500-1,000 miles. Wondering (from those that can speak from experience) what else is opportunistic to change at the same time. Without going into this kind of debt, is there a reliable time tested stop leak that won't hurt our sensitive motor? Dec 11, 2015 · The engine must be disassembled. Oct 30, 2010 · Her old 1998 STS N* used about a quart every 2,500 miles. Jul 18, 2019 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Dec 29, 2019 · A 2006 Buick Lucerne CXS with a Northstar V8, overheats when in traffic, cools down when moving. 6 supercharged seconds! Oct 31, 2024 · In this video, Jake dives into the common problems and reliability of Cadillac’s Northstar engine, a powerful V8 that was popular in models like the DeVille, Apr 20, 2020 · Hello everyone, I’m back again with another 4. Oct 12, 2015 · Informal Lounge, Introductions, General Discussion CTS First Generation Forum - 2003-2007 Seville and Eldorado Forum FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion May 25, 2006 · As a matter of fact, the highway performance of the Northstar is very close to the around town performance of the 4. Feb 26, 2013 · I have a 2004 DTS and I had another before and I never had any problems with overheating or anything to do with a head gasket problem. I know Cadillac's staple engine, and most of their image, is the Northstar V8, but even though they've redesigned them, they STILL have all the problems of the Gen2 Northstar. 6 liter Caddy and Ford engines take up as much space as the LS2 does and cost more to build. Jul 29, 2005 · In 1994, a downsized and somewhat less powerful version of the original Northstar V8 was introduced in the Oldsmobile Aurora. 9 V8, the 1997 Cadillac deville Concours posts a 0-60 time of 7. I currently have a Northstar that runs a 99 PCM vin Y and it runs 0 to 60 in 4. . Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series. 6L V8 (LD8/L37) Report; Share; Posted July 11, 2014. We wouldn’t recommend that here at RB Auto Service. The ads you often see at the top of the forum that advertise a stud kit for the Northstar are specifically to address the head gasket problem. every few months. However, there were also many problems with the Northstar system. It might burn an oz. This engine is a techno wonder. Regardless, the work is tedious and in very tight quarters. 6 intech V8 in the Mark VIII/ Continental. com - it's the online GM/Cadillac service manuals plus a lot more. Jun 21, 2023 · Northstar V8 Common Problems . 6 Northstar performance upgrades Jump to Latest 31K views 28 replies 13 participants last post by Submariner409 Sep 28, 2022 Sep 25, 2011 · This is my 7th Northstar. Additional Features Coming Soon. Some of the most common Northstar problems are pretty serious and expensive to fix. They have changed the modern N*. 6 Northstar because on the Cadillac forums the 4. Mainly the head gasket issues, which plagued pretty much all generations. 732" (44mm) free height 1. After replacing 3 different ones, we have been told by a GM dealer that both of our converters are bad and need to be repl Apr 24, 2006 · These leaks are only niusance leaks and usually don't get worse. 00 car runs great . If the OP has a 2006 model and he was the first to pull the COP assemblies, then that oil had 8 years to weep - not a problem. 1 seconds with the 300hp Northstar V8, which is quite close. 2004 went further with coarser threads on the head bolts. I did notice that the hose leading to the thermostat was rock hard, so I replaced the Dec 18, 2017 · Viper2bn - 12/19/2017 06:44 My mom had a 2006 Lucerne until she passed in 2014, I did all maintenance on the car. I bought this car in 2006 with 11,000 miles on it and have enjoyed driving it. (and the thread has been dead for 10 years) The OP said his ticking came from the front of the engine - probably VVT problems - which your engine does not have. Jul 1, 2007 · There are no problems that the Northstar is known for having with less than 100,000 miles. Nov 11, 2015 · General Cadillac Forums ; 2006 DTS - Electronic Throttle Relearn Northstar 4. Have to remove that nasty crossover pipe and everything else in the way -- can't wait. I have never had a head gasket failure. The beauty of these engines is that there seems to be a good supply of them that no one wants due to the problems you mentioned. VVT (variable valve timing) 1 crankshaft position (CKP Jul 25, 2014 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Oct 25, 2006 · The 4. Years back I needed a daily and shopped between an L67 Bonneville and a Northstar GXP. Nov 3, 2019 · The STS V8 is a much cheaper option for GM fans who want a V8-powered, RWD sports sedan when compared to the G8 (which holds its value damn well). com . You'll need it - guaranteed. Searching automotive forums online will return suggestions that you use an OTC leak stopper to fix the problem. there were changes made to some amount of the 2004 northstars and then were made to all the 2005 models, there's a way to check if a 2004 deville has the updated northstar. 2, 0 to 100 in 9. I change the coolant yearly and oil every 6-7km. It was once one of the most advanced of its time, offering ample technology. these history codes did not seem to pertain to the problem, however, im not an expert with this type of vehicle. Nov 24, 2019 · The Northstar engine is a good one - finicky because the general consensus is "It's a Cadillac - it don't need no stinkin' maintenance". When I read both the DTS and STS forums, I found far more reported problems with the STS. I don't know if this results from that, but otherwise the performance of the unit has been good. Northstar engines are known to consume copious amounts of oil. 6 2006-2011. crankshaft position (CKP) sensor; 2 knock sensors 1 Camshaft Position Sensor Maybe you’re thinking of you’re STS. Mar 18, 2018 · I opined in his thread in "DTS" that the 2006 and later Northstars seem to have more chain/guide problems than the earlier engines. There is no "gasket" as such - it uses a formed silicone "O-ring" set into a machined groove in the block flange. 0-60 in 4. Aug 10, 2021 · Those two problems are one in the same. Cadillac Northstar engine problems. Head gasket issues yes, but that was resolved for the 2003 model years and above. 6L V8 (LD8/L37) Report; Sounds like a problem with unmetered air Later on, the Northstar engine family grew to include a wide range of versions, consisting of the 4. Dec 20, 2011 · Re: 05 sts v8 northstar oil leaks My 2006 has 72,000 & doesn't leak a drop. I learned elsewhere in Cadillac forums that in that era N*, there was an intentional cross-hatching that was actually a design choice by GM engineers. I`ve rea Jun 16, 2006 · Informal Lounge, Introductions, General Discussion CTS First Generation Forum - 2003-2007 Seville and Eldorado Forum FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Jul 30, 2020 · The Northstar engine was also sold under that name by Cadillac for over a decade before being used in both the Pontiac Bonneville and the Buick Lucerne in 2004 and 2006. THer is, however, one dude over in the Northstar forum with 540,000 miles on his BONE STOCK Northstar. 6 Northstar engine. It's normal. I've never had an Eco car, ever. The block is a 2 piece design, and the seal between them ALWAYS leaks from the factory. The lower cylinder block (halfcase) is an integral machined structural part of the engine assembly. I can't say I really had any serious starting problems with the car, but it did take some crank time, especially in cold weather, before the tune-up. The cylinder bore diameter is 93 mm (3. Despite its prowess and upscale positioning in Cadillac’s lineup, these design flaws have been a point of contention for many owners of the said engine. Jul 17, 2020 · Posts 5 and 6 moved from a hijacked thread by Parker T98 in Engines; Northstar. 6L (same engine as the DTS V8 and others). 3. I have not had any problems and I have done regular maintenance. Probably impossible to predict chain/guide life with any accuracy. $2K. 2006 is very good year for the NorthStar. there is a strong smell of anti freeze throughout the car but the current owner assures me he changed the water pump and radiator. Customer: I have a 2006 Buick Lucerne CXS, V8 Northstar engine. Jun 14, 2004 · Just read a write up on the new Northstar 4. 128" (3. 6-liter V6 good for 255 horsepower and 252 pound-feet of torque, and a 4. No meaningful aftermarket cam work. It has variable valve timeing (VVT) and piston oilers which spray a mist of oil to the underside of the piston. I’ve got a 2000 Cadillac STS WITH 150,000km (90,000 miles) I’ve owned it for years trouble free. The L47 4. I’d suggest reading various websites and forums to find more info about it. Just google "2013 Elantra engine" and you'll see what I mean. one of my friends with an 04 XLR-V got tapped in the rear end breaking both tail lights Jul 8, 2016 · My friend had head gasket problems on 1999 Eldorado we found a guy upstate NY , he specializes in installing the new conversion stud kit's , he pulled the engine drilled and installed studs nice custom job , steamcleaned , tune up and seals the job was $3800. 5 headbolts (Upper row are longer than 93-99) 04+ Northstar has M11x2. Is this true? Jul 11, 2014 · General Cadillac Forums ; Magnetic Ride Problem on 2006 DTS Solved Engine: Northstar 4. The shop wants $800 to fix. no parts availability, so when that careless driver at the mall backs into one of your headlight, be prepared to shell out anywhere from 2k- as much as 5k for a replacement if you can find one at a salvage yard. About 8 months ago she started overheating with the gauge jumping up to the top and the message near the odometer saying that it has shut down the a/c then said to shut the engine off. Apr 5, 2007 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Worst 2006 Cadillac DTS Problems #1: Headlight Shorts Out Intermittently 2006 DTS Average Cost to Fix: N/A Average Mileage: 87,000 mi. Urb, if you want to un-sticky this or simply move it to the actual Northstar Technical forum, please be my guest. Today the engine warning light (outline of engine) came on (in the dash) and shortly after, I started experiencing a clattering noise coming from the engine. It sounds like a diesel, or valves clattering. Your 2004 transverse Northstar bears little resemblance to the OP's 2007 VVT longitudinal engine - VERY different vehicles. The dohc 4v design that helps it breathe well is also costly to build and takes up a lot of space under the hood. Oct 28, 2019 · 2005 Cadillac STS V8 - 61,000 miles 2005 Cadillac Deville Base (Limited Edition) - 131,000 miles 2006 Chrysler 300C - Totaled 1998 Oldsmobile Cutlass GLS - Sold (and good riddance!) Dec 25, 2020 · Those chain tensioners and guides should be a recommended (Northstar) normal maintenance item at about 100,000. 6L 270hp Northstar Concours. Dec 17, 2024 · Forum for discussions of the Cadillac XLR-V, based on the Y-body Corvette platform and powered by a 443bhp supercharged LC3 Northstar V8. Jul 30, 2014 · anything 03 and older have HG problems, the updates they did in 2000 pretty much did nothing, we do so many 2000-2003 Deville/Seville/Eldo's it probably is even with 97-99 Northstars. Jan 19, 2018 · A fella at work who knows a lot about cars & engines told me a problem with some of the Northstar 4. Apr 4, 2013 · 2006 4. There's already a lot of info on this in the original thread in "DTS". Oct 19, 2015 · Please read the non-scientific poll on Northstar engine/gasket failures in the stickies in Engines; Northstar. You have to keep in mind that a vast majority of people come to the forums to complain or seek help for a problem. 1997 - 1998 - 1999 had block metallurgy troubles, 2000 had head bolt thread length problems. Every single one has had only green coolant while I have owned it. Sep 23, 2004 · The oil pan is leaking on my 80K 4. I think a lot of the issues are a lack of maintenance. So I always wondered whether I would have any problems from this initial period of sitting on the shelf. There is a fix for that now which should make these engines bulletproof. Pulled the Diagnostic Trouble codes and found one that says "cylinder missing" and another that said "engine stalled once or twice" and a couple of others that meant ignition troubles. The RPM wont go past 3000 RPM, vehicle immediately cuts off when foot is off accelerator. 2007 Buick Feb 9, 2005 · To me it seems that Cadillac new about this problem because they have a better ring that's going to replace the ones that are in it. Nov 10, 2022 · The below Northstar engine models you should consider avoiding: 1993 – 1999 Northstar L37, 1994 – 2002 Northstar LD8, 2004 – 2005 Northstar LH2, 2006 – 2009 Northstar LC3. But aside from that the knock sensors will send a signal to the ECM to retard the timing of any knock is detected. Jan 26, 2024 · Informal Lounge, Introductions, General Discussion Seville and Eldorado Forum CTS First Generation Forum - 2003-2007 FWD DeVille 1985-2005, Fleetwood, and 60 Special 2004-2007 CTS-V General Discussion Mar 20, 2013 · Hello to everyone. If it is the pan rather than the halfcase, some people have had success in significantly reducing it by pulling one bolt at a time, spraying the bolt and the block threads with BrakeKleen, then reinstalling the bolt to the proper torques setting after putting some Permatex thread sealer on it. I think the 3. This past year I learned about the problems the Northstar has with the head gasket,ect. Oct 20, 2015 · I have a 1999 Deville with the 4. Before purchasing a car with this system, you should know some significant Cadillac Northstar engine Nov 19, 2017 · in addition to the glass issue, the same problems exist for the headlamps and the tail lamps. Some genius at GM decided to use fine thread bolts on an aluminum bloc… As soon as the engines would be in a overheating situation, the bolts would come off like squeezing a ripe banana. May 31, 2005 · Hi! No doubt the Northstar has 40 hP bottled up in there somewhere! In my experience with a Buick Grand National (factory turbo-charged engine from 1984-87) a new chip did give more power but I wasn't entirely happy when I had to always use Premium gas (Northstar runs good on regular, but I use premium anyway and think I get a little more pull). The problem that gave ‘em the bad reputation was a head bolt problem. Mar 23, 2006 · It probably went into mating that damned Northstar to the body. The 3800 won by a landslide once I found out the following: the Northstar block is made of two pieces joined by a gasket. 04) diameter 0. Dec 8, 2009 · Hi, As I know this syndrome was common in 98, 99 N*, and finally Cadillac has come up with some modifications, and they updated N*, and I guess you have the modified engine on your 2002 eldo. My Northstar engine, that has known head gasket problems, has gone from the most negative part of the car to the most valuable. It's not the head gasket per se- it's the cylinder block head bolt hole threads that fail, causing a loss of clamping pressure and subsequent head gasket failure. tune, 412 RWHP / 472lb/ft RWTQ Daily Drivers: 2019 Chrysler Pacifica Limited: Mommy's new RGC Jul 29, 2011 · I've called several northstar engine 'specialists' and they all say that the Northstar engine will more than likely blow the headgasket in between 100,000 and 140,000 miles. The Northstar gets a bad rap from mostly owners who neglect maintenance. 4. The car has only 74,000 miles. 2005 Cadillac STS V8 - 61,000 miles 2005 Cadillac Deville Base (Limited Edition) - 131,000 miles Aug 5, 2007 · Someone who works on Northstar engines said the overheating problem on my 1994 Cadillac STS is due to one of 3 problems – a bad water pump, bad head gaskets, or a bum thermostat. There are NO visible coolant leaks and NO coolant on the floor. Which makes you able to run 87 in an engine designed to run on 91. Always a GM V8. Jan 4, 2018 · 93-99 Northstar has m11x1. 6 V8. Learn to love the car or get rid of it because you're not going to fix it. Sep 1, 2012 · I have a 2005 STS Northstar V8 with 135,000 miles. Nov 17, 2010 · If the Northstar would have came with studs in the first place it would have a reputation as the best designed, most dependable, longest lasting V8 engine in US history. What you are describing sounds like a car that wasn't driven very much and had a case-half O-ring problem at 50,000 miles and a pulled head bolt at 70,000 miles. 6 is a DOHC Northstar), while improved from the early 4. 02 and up do not have the problem, In 2006 more changes were made that help even more. Jun 12, 2006 · There are other concerns with the Northstar (and Ford's modular V8). GM already did that homework, but ask Jake at Northstar Performance if anything new has come up. 68mm) diameter 0. I'm amazed that you haven't found some dirt floor shop that wants to take it all apart for you looking for nothing. One common problem of the earlier engines was cooling problems, which probably wouldn't be helped in a mid- or rear-engined installation. The CKPs are nowhere near the harmonic balancer. (Deville went away after 2005. 5 and 4. 6 L) with the following issues: Car won't start unless Im holding the accelerator to the floor, if it starts it stumbles terribly and has no power. A well-kept DTS tends to retain its value in the second-hand market, often boasting an engine that still has a lot of vitality. 6 sec and the quarter in 13. rdsqt xwwed gthz ajqmakf lqocjf xsoh hktndw qndfb dsq dbbgvlb