LS1 Engine Problems. 1. Piston Ring Seal Failure. Each LS1 piston uses 4 seals, a 1.2mm combustion ring, a 1.5mm seal, and two 2.8mm oil rings. These rings on the LS1 are known to deteriorate quicker than normal. While they are sub-par on stock engines, modded LS1's are a lot more likely to run into these issues.Overheating Northstar. My 1998 OVerheated and was in the red area of the gauge for no more than 100 yards long enough for me to get off the freeway. When I took it to a indi garage they said I had a busted head gasket becaues water was in my cylinders, and they wanted 4,500 dollars to repair it. What happened to the 50 miles with no water ...A whining sound in your car’s radio is likely to be DC noise from the alternator, especially if the pitch of the noise changes with engine speed. Uncommon in most modern cars, the ...Repeat this three times. Start the engine and allow the engine to warm up completely. It should be at normal idle speed at about 550 rpms. Hold brake and put in Drive, continue to hold brake. Then turn on climate control system and let it run for a while. Turn off the climate control and return the car to park.Jul 21, 2021 ... Customer Returned This Cadillac Northstar L37 4.6L V8, How Many Things Can We Find Wrong? ... The CAR WIZARD names Cadillac's Northstar Engine the ...This engine had two big problems #1 Engine requires regular coolant changes and you must use the GM sealing tablets. If you don't know when this was last done do it now! ... the 4.1/4.5/4.9 and the Northstar engines need the coolant system sealer to protect against any coolant leaks due to casting porosity or gasket failure over time.These were $40,000-$60,000 cars when they were new. If yours is paid for, it's in overall decent condition, and you only have to spend $3,000-$5,000 to make it last another 5 years (that's what we warranty our head gasket repairs for), fixing your Northstar could be one of the best automotive investments you will ever make!DESCRIPTION: Effective November 9, GM Parts will provide a remanufactured 4.6L Northstar Premium V8 Engine (RPO-L37/LD8). This engine will provide an viable alternative to repowering your customer's late-model Cadillacs. Available on Powertrain Wholesale Truckload Program. EFFECTIVE DATE: Available November 9, 2007. ORDER INPUT: Order via RAPID.For those looking for the ultimate off-road machine, the Polaris Ranger Northstar is the perfect choice. This powerful and versatile vehicle is designed to tackle any terrain, from...engine problems 2 NHTSA complaints: 4. body / paint problems 1 NHTSA complaints: 1. lights problems 1. windows / windshield problems 1. electrical problems NHTSA: 5. steering problems NHTSA: 2 ...Oil Consumption. It's not unusual for pre-2000 engines to go through as much as a quart of oil every 500 miles. It's not leaking, it's just burning off in the combustion chamber. The problem goes back to the piston rings, which can get stuck in the ring lands as a result of carbon buildup in the ring grooves.5. Oil leaks. Promar Precision Engines have been pioneers in remanufacturing the 4.6 DOHC 32 Valve Cadillac Northstar Engines. We were one of the first remanufactures in the country to offer remanufactured 4.6 Northstar engines to the public, even before oversize pistons were available. We have made multiple enhancements and longevity ...If a problem is found, repair as necessary. Was a problem found? — Go to Step 24: Go to Step 17: 17 : Check ignition coils for cracks or carbon tracking. If a problem is found, repair as necessary. Was a problem found? — Go to Step 24: Go to Step 18: 18 : Using a Scan Tool, monitor TP angle with the engine idling.Engine/transmission: The car's 4.6-liter, 32-valve, double overhead-cam Northstar V-8 engine develops 320 horsepower at 6,400 revolutions per minute and 310 foot-pounds of torque at 4,400 ...A healthy Northstar will use a quart every few thousand miles, and a drip or two overnight won't really affect that. Both the Ford and Cadillac engines are good engines. We had a 2-valve version of the Ford engine in a '92 Crown Vic. Good piece. It developed the common valve seal problem at 100k and mom traded it (on the Cadillac actually).Install 4 10mm bolts in water pump housing cover and tighten. Re-install clamp on bypass hose and tighten. Crush up cooling system pellets and pour inside upper radiator hose. Install upper radiator hose and clamp. Use large screwdriver to move belt tensioner to release tension and install belt on water pump pulley.Polaris Ranger 570 Problems To Watch Out For. The seven most common Polaris Ranger 570 problems are: Excessive heat in the cab. Overheating. Airbox lid warps and no longer fits. Hard shifting. Brake pressure sensor switch gives out. Fuel pump problems. Starting Problems.along with the fairly rare $2500 head gasket problem - there is a trans problem of worn seals causing the P0741 code - this is another $2500 to $3000 repair - ... Please read the sticky posts on this subject at the top of the Engines, Northstar forum. Begin with the sticky on 2000 Northstar intake manifold changes. Premium Member If it won't ...ben.gators. 5855 posts · Joined 2009. #2 · Dec 9, 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. Like.Submariner409. 83882 posts · Joined 2006. #15 · Apr 24, 2016 (Edited) Look at the sticky threads on the Northstar forum main page. There's one that lists the number of head gasket failures of CF members by year. It's not scientific, but the trend shows that the '98 and '99 are/were the worst.Look at the oil on the dipstick. If it's black, change it again. Repeat as necessary. Recheck the oil consumption. The accepted procedure is to check the oil when the engine is hot but has been standing without running for ten minutes on level ground. Mark the dipstick level, the date, and the mileage in a log.81 posts · Joined 2014. #1 · Jun 17, 2014 (Edited by Moderator) I've read on this forum that GM somewhat addressed the headgasket issue in year 2000 and revamped the headbolts around 2005, so I assume all the Northstar-equipped vehicles from 2005 and beyond should resist the headgasket issue much better than the ones made prior to.4 Common Issues Affecting Lifespan. 4.1 Known Northstar V8 Design Flaws. 4.2 Overheating: A Persistent Challenge. 5 Solutions to Common Engine Troubles. 6 …The ignition coil is also known to fail from time to time; luckily, it's a relatively simple swap that shouldn't take too big a bite out of Your wallet. Some potential problems with the engine in a 2008 cadillac dts northstar are due to poor lubrication, inadequate fuel and air compression and aged spark plugs.The EFI system monitors parameters such as engine speed, intake pressure and temperatures when the engine is started and warmed up. There are no adjustments to be made to EFI system. If there is a problem with startup or operation, please immediately contact a NorthStar Authorized Service Center to solve the problem. Advantages of EFI Engine: 1.GM knows about the engineering northstar engine problem but refuses to accept responsibility for it. - Hawthorne, NY, USA. Add Complaint. problem # 8. Oct 12 2015. DeVille 8-cyl.Learn about the common head gasket leaks and overheating issues that affect Cadillac Northstar engines from 1993 to 2005. Find out how K-Seal can plug the leaks and …Northstar/cadillacThe northstar engine is a delicate engine and like a beautiful woman it demands your attention to the fullest. ... It's called "Camel Mode". The engine will NOT suffer from a quickly sensed overheat. The head gasket problems, largely cured by 2002/2003, were mainly due to failed cylinder block head bolt threads - fine threads, short head bolt ...I have a 2005 STS 4.6L Northstar....Let me start by saying I first bought car with 89,xxx miles on it. Have done regular fluid changes and thats about it....Fast forward to now about 137,xxx miles. Driving and then all of a sudden check engine light comes on. I hook scanner up says cylinder 5 misfire...At this time I realize I have never done ...Dodge released the Pentastar 3.6-liter engine in 2011. This motor is found in a wide range of Chrysler- and Dodge-branded vehicles. Upon its release, there were a few common proble...Follow Us Today: Now synonymous with Cadillac performance, the popular Northstar V8 will soon be discontinued by General Motors. The engine was developed in the late 1980s and introduced in 1992 ...85,605 miles. The contact owns a 2006 Cadillac Dts. The contact stated that engine oil leaked into the exhaust system and caused the exhaust to smoke. The dealer advised the contact that the oil ...Something like stalling,hesitation, lack of power, rough running, shaking or excessive engine oil consumption may be included. Some 2004 Pontiac Bonneville GXP (Northstar V8) may experience failing catalytic converters, excessive oil consumption,electrical connector problems, failed mass air flow sensors, and in some cases the engines may need ...I too am the original owner of a 2003 Sedan Deville with a recent Northstar engine failure. I will know in a day or two if the head gaskets was the problem (and unfortunately, the cost of THIS repair). My car had just over 100K on it as I drive 22,000 miles/year all highway, to and from work.South Central Texas. Apr 18, 2005. #1. Just read a write up on the new Northstar 4.4 supercharged V-8 in HotRod magazine. It has variable valve timeing (VVT) and piston oilers which spray a mist of oil to the underside of the piston. This engine is a techno wonder. It should be included in the great engines of today.This northstar engine has leaked oil, (not burning it) since 40,000 miles. I use 2 or more quarts of oil between oil changes. It leaks whenever it is parked. I have spent monies on this, but it appears a major engine repair is needed. Some say, the bolts were too short, and others say, this defect continued until the 2006 year. - Washington, UT ...The 32-valve design of the Northstar's engine head gives it a serious advantage when it comes to upper rpm breathing as compared to a more traditional 16-valve pushrod motor. In fact, the factory lifters are good for 8,500 rpm, but in order to get there safely you're going to have to swap in a set of stronger valve springs.Follow Us Today: Now synonymous with Cadillac performance, the popular Northstar V8 will soon be discontinued by General Motors. The engine was developed in the late 1980s and introduced in 1992 ...The EFI system monitors parameters such as engine speed, intake pressure and temperatures when the engine is started and warmed up. There are no adjustments to be made to EFI system. If there is a problem with startup or operation, please immediately contact a NorthStar Authorized Service Center to solve the problem. Advantages of EFI Engine: 1.Cadillacboy. 4419 posts · Joined 2003. #9 · Nov 12, 2007. I think w/ a good maintenance it should last longer than 150 K miles . It's not about how fast you go,it's about how you go fast - Enzo Ferrari. If you can produce the best road cars in the world,no one ever will forget them-Ferruccio Lamborghini. Like.If you want to make sure your vehicle stays in good repair, you need to at least understand the basics of engine maintenance. After all, your car’s engine is the “driving” force th...The early-to-'04 Northstar suffers from an open deck design with minimal sustained clamping force which is certain head gasket disaster over time. A composite fabric/graphite gasket without s/s cylinder seal rings cannot be expected to hold up under the expansion/contraction of engine parts, and when coupled with proven defects in machining and ...The Northstar V8 actually predates the LS based engine by a solid 3 years, and it was more suited for Cadillacs FWD fleet at the time. It was also doing it's best to compete with European luxury and technology. Loved my 05 Bonneville GXP. Put 300xxx miles on that baby and never needed a head gasket.Jun 21, 2023 · Learn about the main issues that affect the Northstar V8, such as low oil pressure, carbon buildup, head gasket failure, and more. Find out the causes, symptoms, and solutions for each problem and the average cost to fix them.Jun 17, 2020 · Well this must be a 2006 thing with the 4.6 Northstar because on the Cadillac forums the 4.6 engine is said to be far better from 2003 on up with much improved head bolt and intake/head gasket design.Aug 7, 2006 · 89563 posts · Joined 2004. #2 · Aug 7, 2006. Head gaskets can be a problem on any aluminum engine. Proper cooling system maintanence it the best provention, though not a guarantee. I sold my '97 with 107K and never had a problem. Many here have much higher milage with no problems.With this kit you're studding both critical areas of the aluminum engine block and you're also adding the best head gaskets available on the market. Package Price: $1247.00 USD Click Here To Order! ... Making Northstar Engines Stronger Since 2008! Email: [email protected] | We have installers across the USA and CanadaThe Northstar engine was NOT part of the class action suit against GM. As with any coolant, you neglect the maintenance and proper change intervals, you have problems. You are perfectly free to run any coolant you please in a Northstar as long as you properly maintain the system and perform recommended exchanges - maybe even changing the ...Oct 19, 2015 · Please read the non-scientific poll on Northstar engine/gasket failures in the stickies in Engines; Northstar. Stickies, marked with a push pin, are necessary, timeless info in any forum of interest. 1997 - 1998 - 1999 had block metallurgy troubles, 2000 had head bolt thread length problems.Ok, get a 2004 Northstar or newer engine, that was the latest upgrade Cadillac did for the Head Gasket problems that some of the earlier ones had. This last fix was the last upgrade and has worked quite well.Any aluminum engine is going to have problems if the coolant isn't changed properly. I've never heard of a dealer telling someone to change the coolant. ... WHERE THEY ARE HAVING HEAD BOLT AND BLOWN HEAD GASKET ISSUES, I WOULD PUT THE NORTHSTAR ON PAR WITH THE AMG. THE FACT IS, A SMALL SAMPLE LIKE …As for what the common issues are, an intake gasket isn't out of the question should the car be ill maintained. Head gaskets can be a problem too, but again, it all depends on how the car has been treated in life. As for overall reliability, the 4.9 liter is the lowest warranty claim engine that Cadillac has ever had as far as I know, and is ...A simple question about eliminating the fuel cut on my 94 ETC Northstar engine, currently on a test bench with factory wiring harness and ECM. I have wired a Passlock II into the PCM and the PCM is receiving the appropriate rmf signal of about 3VDC. ... I had same problem with a 94 3.4 swap and found the correct resistance for the passkey ...1344 posts · Joined 2003. #10 · Dec 19, 2005. As engines have gotten more sophisticated, backfires certainly aren't a "normal" occurance, but they can still occur. Recall also that the Northstar's intake manifold is a composite (plastic), unlike steel or aluminum that you'd traditionally find.Acceleration and Power. The 2009 DTS is powered by a 4.6-liter Northstar V8 engine making 275 horsepower. Power travels through a four-speed automatic transmission -- a serious flaw, the press says, since even other GM products generally use six-speed models.Fuel Pump Troubles. Problems in the EFI (Electronic Fuel Injection) pump are common in many Ranger models (like the Ranger 570). The symptoms include a bogging engine, sudden throttle cut downs, backfires, or clogs in the fuel pump. If you have a clogged fuel pump, you may need to push down on the accelerator like your life depends on it.Byteboard founders Sargun Kaur and Nikke Hardson-Hurley were working at Google when they recognized a fundamental problem with the way engineers were being hired. They saw a proces...A healthy Northstar will use a quart every few thousand miles, and a drip or two overnight won't really affect that. Both the Ford and Cadillac engines are good engines. We had a 2-valve version of the Ford engine in a '92 Crown Vic. Good piece. It developed the common valve seal problem at 100k and mom traded it (on the Cadillac actually).83883 posts · Joined 2006. #6 · Feb 18, 2014 (Edited) Let's move this engine-specific question to the Northstar forum - and you can read the several sticky threads at the top of that forum on how to diagnose head gasket, cooling system, fan, and gauge operation problems. You should have diagnosed and repaired cooling system problems first ...Northstar overheating causes. 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. 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.It is the standard engine in the high-performance XLR-V roadster and STS-V sedan. Exceptional smoothness, refinement and drivability were the targets for the 469-hp supercharged Northstar V8, which features an all-new aluminum block design and the most power output for any production Cadillac to date. To ensure tight tolerances and strength ...As for what the common issues are, an intake gasket isn't out of the question should the car be ill maintained. Head gaskets can be a problem too, but again, it all depends on how the car has been treated in life. As for overall reliability, the 4.9 liter is the lowest warranty claim engine that Cadillac has ever had as far as I know, and is ...Your 2004 transverse Northstar bears little resemblance to the OP's 2007 VVT longitudinal engine - VERY different vehicles. ... The OP said his ticking came from the front of the engine - probably VVT problems - which your engine does not have. We can move this to the correct Seville or Engines; Northstar forum after you further define your ...The 2006 Buick Lucerne has 21 NHTSA complaints for the engine at 65,570 miles average. (Page 1 of 2) ... engine problem. ... 4.6L northstar engine leaks oil, and when driving you can smell hot ...Jul 9, 2012 · Change the oil, flush the coolant, change plugs and cables (ac delco 41-950 plugs ONLY) do a block test. Struts and shocks are roughly $800 a wheel for this car. Check for oil leaks at the case halves, if weeping let it do so, if its leaking pretty bad youre looking an extremely costly repair.A failing ignition control module can be a real headache at times. It can produce a wide range of engine performance problems, including preventing the engine from starting or stal...Submariner409. The CMP (CaMshaft Position sensor - the Acronyms sticky ^^) is bolted to the front of the right cylinder head directly in front of the exhaust cam sprocket. If you suspect that it is faulty, a connector and wiring check should be the first order of business. In this drawing the engine is partially disassembled ...Learn about the Northstar engine, a complex and powerful V8 developed by GM for Cadillacs. Find out its history, specs, common problems, and how to tune it up.The Northstar V8 engine family is General Motor's top-of-the-line luxury power plant. Introduced in 1993 in the Cadillac Allante, Eldorado and Seville STS, the 4.6L 32-valve dual overhead cam all-aluminum V8 engine was a quantum leap forward for U.S. automakers. Initially rated at 295 horsepower, the Northstar V8 has been ranked as one of the "10 Best Engines in North America" by Ward's Auto ...When you are meeting someone new, at some point, they'll probably ask, "So what do you do?" If you want to make a good first impression, answer by discussing how you solve problems...Mar 29, 2024 · The Cadillac Northstar engine is one of many GM creations, appearing on the market from 1993-2011. It was once one of the most advanced of its time, offering ample technology. However, there were also many problems with the Northstar system. Before purchasing a car with this system, you should know some significant Cadillac Northstar engine ...Dec 4, 2020 · The 32-valve design of the Northstar's engine head gives it a serious advantage when it comes to upper rpm breathing as compared to a more traditional 16-valve pushrod motor. In fact, the factory lifters are good for 8,500 rpm, but in order to get there safely you're going to have to swap in a set of stronger valve springs.The Northstar gets a bad rap from mostly owners who neglect maintenance. Head gasket issues yes, but that was resolved for the 2003 model years and above. Don't let that discourage you from buying an older one though, they're still relatively bulletproof motors that love WOT runs. Just do your homework and check maintenance records.fraudfighter Member Posts: 9. November 2003 edited March 2014. I am researching the excess oil consumption problem with Northstar engines. Saw some posts here back in 2001 but none since. It is apparently a very wide spread problem - 3 technical service bulletins posted thus far and no known fix for certain models.ben.gators. 5855 posts · Joined 2009. #2 · Dec 9, 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. Like.Please read the non-scientific poll on Northstar engine/gasket failures in the stickies in Engines; Northstar. Stickies, marked with a push pin, are necessary, timeless info in any forum of interest. 1997 - 1998 - 1999 had block metallurgy troubles, 2000 had head bolt thread length problems.Northstar and GM Engine Experts since 2008 We have the best parts in the world for these Northstars. Hands down. If you want the best, you came to the right place. Head Stud Kits - Performance Tuning - Upgrades - Repairs Cadillac DTS - Cadillac Eldorado - Cadillac STS - Bonneville GXP - Oldsmobile Aurora - Buick Lucerne & Morethe NorthStar ignition on the marine LT1s. There are 4 short lengths for one side and 4 long lengths for the other. Indmar Part # 55-6010A & 55-6010B. k. Plugs - AC Delco MR43LTS gapped at 0.045" l. Idle Air Control (IAC) valve: GM part number 17113099, and it has an o-ring around it! SUPER IMPORTANT…beThe Northstar engine series is a family of automobile engines designed by General Motors. The Northstar has been used in several cars in the GM lineup, including the Cadillac Seville, Buick Lucerne, Pontiac Bonneville and Cadillac Eldorado. ... Run through a check list of common overheating problems to troubleshoot the source of your engine ...Hey gang, A fella at work who knows a lot about cars & engines told me a problem with some of the Northstar 4.6 V8's. He claims that the earlier engine block castings were prone to fail due to porasity in the casting. He claimed that GM's "fix" was to offer coolant "pucks" to add to your coolant to stop erosion of the engine block.Common problems with the Northstar Engine usually relate to dealing with stripped head bolts. For example, if you own a Cadillac STS engine Deville 97 with a 32 valve 4.6L …There were over 2,000,000 Northstar cars built. Since this site started in early 2002 we may have seen 1% of those engines with problems. ANY car can have problems so, as a used car buyer, the onus is on you to make sure your prospective purchase is either a creampuff or a ripoff.Jul 9, 2012 · Change the oil, flush the coolant, change plugs and cables (ac delco 41-950 plugs ONLY) do a block test. Struts and shocks are roughly $800 a wheel for this car. Check for oil leaks at the case halves, if weeping let it do so, if its leaking pretty bad youre looking an extremely costly repair.. Oil loss is one of the most significant d2001 Cadillac DeVille engine problems with For the Northstar engine, what model years had the Head gasket problems? I heard that they got better in the early 2000's. I had a '97 and '98 that both went bad. But my '96 is still going at 126,000 miles. The northstar had problems on all years of the engines.Jul 1, 2007 · There are no problems that the Northstar is known for having with less than 100,000 miles. 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. ... Any car can have problems, I just saw this video on the mercedes top shelf AMG engine ... Common outboard motor problems include an engine that does not s 85,605 miles. The contact owns a 2006 Cadillac Dts. The contact stated that engine oil leaked into the exhaust system and caused the exhaust to smoke. The dealer advised the contact that the oil ... At an oil/filter change - say for a Northstar (7.5 qu...
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