27 posts · Joined 2009. #5 · Jan 11, 2010. This valve is in the end of the intake manifold. You have to pull intake, remove the fuel rail and twist over-pressure valve a quarter turn and the pop it out with something long enough to go through the intake (after you take throttle body off) you probly only need to replace o-ring. Like.The Most Common Cadillac Northstar Engine Problems: Blown Head Gasket. Cost to fix: $1,000-$3,000. Main Seal Oil Leaks on the Rear. Cost to fix: $500-$1,500. Valve Cover …Northstars with failing head gaskets due to cylinder block head bolt hole thread failure do not normally mix oil and coolant or vice versa. You need to perform a cylinder block exhaust gas test immediately after the next overheat. lisle 75500 combustion leak detector - Google Search. Do Google searches for "cadillac forums northstar purge line ...Cadillac Northstar owners to those whose vehicle is overheating .My 99 Deville was overheating turns out it was Catalytic Converter.Dont rely on PCM for code.If the Cat converter gets plugged up the heat will not get past converter it will back up into engine block causing overheating.My deville ran at between 190 & 201 degrees this morning.If you have a misfire the unburnt fuel goes into ...Here are some things about your Cadillac and what you should do to prevent Overheating and solve diagnose, repair, prevent your 1998 Cadillac Northstar GM en...It would be a lot easier if the front cover was taken off and press in the seal with support on the back side. You could get a piece of flat plate drill a hole in it for the crankshaft bolt to go through and use it and the crank shaft bolt to press in the seal. Again do not compress the front cover. Like. M.Jun 14, 2015 · Re: 1998 DeVille air intake manifold. Use this to make sure the proper coil tower is connected to the proper plug. Remove the coils and ICM, clean the coil base contacts and the coils themselves. Use only the correct AC Delco #41-950 Platinum spark plugs and the expensive AC Delco wireset - Rock Auto.The Shortstar uses much the same piston and ring package as the Northstar so it also benefits from "exercising" to keep the rings free in the piston grooves and free of carbon. Flog it regularly. That engine is extremely robust and enjoys one of the lowest warranty claims and problems/100 engines in the industry, period. You practically can't ...This Northstar engine was designed originally for transverse front-wheel drive applications. It was modified substantially in 2004 for longitudinal rear- and all-wheel drive use in the STS, SRX, and XLR, as well as receiving continuously variable valve timing on both intake and exhaust sides. The RWD (LH2) Northstar produces 320 hp (239 kW) and 315 lb•ft (427 N•m). An increased compression ...Top 1996 Cadillac DeVille Problems. Power Window Regulators may Fail. 738 people have reported this. 405. Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail. 620 people have reported this. 285. Oil Leaks From Lower Engine Area. 504 people have reported this.Aug 29, 2023 · Starter Motor Problems. The starter motor on the Northstar engine is located inside the engine, which is a unique design. This location can cause the starter motor to get hot and fail. Replacing the starter motor can be a labor-intensive job, but it is necessary if the starter motor fails. 12.Northstar Engines and System Technical Discussion. BEWARE OF SCAMMERS. Anyone trying to get your money should be checked out BEFORE you send anything anywhere. Northstar intake manifold. Tags ... We also had problems on some 3800's back in the 90's with exploding intakes. They issued a software update for the PCM to fix that concern though.Concerns with my 1997 Northstar Engine. I just picked up a beautiful 1997 Eldorado. It was owned by a 91 year old man who unfortunately can not drive any longer. The car is absolutely beautiful! It looks like it just came out of the show room. The car has 85K on it right now.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.Gmartino100. 2706 posts · Joined 2019. #5 · Oct 10, 2021. 2021 model years. Hot exhaust melting plastic - no longer an issue. One way bearing - still an issue. Pinion cover - no longer an issue. Loose steering stem - not really an issue and hasn't been addressed by Polaris. Wheel bearings - still an issue but a $20 bearing greaser tool can ...1999 STS Northstar problems. Hello, I am new to this forum and not a Cadillac owner yet. I am currently looking at a 1999 sts with the northstar v8 and i have some questions / concerns. It has 160xxx miles the power steering gets tight and loose here and there. there is a strong smell of anti freeze throughout the car but the current owner ...Check out our Cadillac SRX overview to see the most problematic years, worst problems and most recently reported complaints with the SRX. 2004 Cadillac SRX engine problems with 49 complaints from ...We would like to show you a description here but the site won't allow us.From 93 to 03 the head gaskets are pretty touchy. I don't think they were the whole problem though. You have an aluminum block, aluminum heads and steal head-bolts. I firmly believe that if you keep up with the cooling system maintenance and never let the engine overheat (I consider 240 and above overheating) the head gaskets will last forever.chazglenn3. 3157 posts · Joined 2004. #16 · Jun 7, 2007 (Edited) I believe that he wants to sue GM because they gave him an updated, approved procedure to repair the Northstar block and this procedure is failing at a rate of 10% so far. I don't know if he will be successful or not, but that is what he is thinking.Built Buick Lucerne (400HP Northstar Engine) We thought it would be cool to share with all of you one of our latest builds for a good customer of ours. This is a Buick Lucerne with a Northstar 4.6 Engine. The customer wanted something more than what the stock engine offered. He decided he wanted an all motor combination with wheels, tires ...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.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...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.Engines Classic Mustang HP1556 Lemon-Aid New and Used Cars and Trucks 2007-2017 Popular Mechanics MGB & MGB GT - Your Expert Guide to Problems & How to Fix Them Focke-Wulf Fw 190A to G The Essential Guide to Motorcycle Maintenance Redline 18 The Family Handyman Simple Car Care & RepairMar 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 ...Guss put the engine back together perfectly, the first time, no returning for re-fix, ready to run for years and miles to come. My Northstar engine, that has known head gasket problems, has gone from the most negative part of the car to the most valuable. I now have a true performance gem of an engine with strong reliability.Jul 31, 2015 · Yes & no. The problem is that the head bolt threads pull. Coolant gets into the cylnder and the rest is history. The question is, which came first, head bolt failure, allowing coolant into the bolt holes, acting as a catalyst and corroding the threads, or the threads failing first, allowing coolant into the cylinders. 2.Cadillac Northstar Engine Head Gasket Repair. Northstar Performance International : New Online Store! ... Worn Exhaust Cam shaft? 1993-1999 Northstars have this problem over time, especially if they haven't been driven hard. ... But idling in traffic and "babying" the engine will result in lack of lubrication (splash oiling) and worn lobes ...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.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.Cadillac Northstar Engine Head Gasket Repair. Northstar Performance International : New Online Store! ... Worn Exhaust Cam shaft? 1993-1999 Northstars have this problem over time, especially if they haven't been driven hard. ... But idling in traffic and "babying" the engine will result in lack of lubrication (splash oiling) and worn lobes ...Check out our Cadillac DTS overview to see the most problematic years, worst problems and most recently reported complaints with the DTS. 2006 Cadillac DTS engine problems with 67 complaints from ...Highlights of resealing a Cadillac Northstar lower crankcase to the cylinder block to correct a common oil leak.15 people have reported this. 5. Engine Performance Problems Due to Crankshaft Position Sensor Failure. 15 people have reported this. 4. Power window regulators may fail and cause window to fall into door. 12 people have reported this. 3. Vacuum Brake Release Switch Can Fail.If you drive a Cadillac with a Northstar 4.6 engine, you've probably found yourself dealing with a nonstop oil leak. Searching automotive forums online will return suggestions that you use an OTC leak stopper to fix the problem. We wouldn't recommend that here at RB Auto Service. This is a temporary solution to a well-known...A D V E R T I S E M E N T S. The contact owns a 2006 Cadillac Dts. The contact stated that there was evidence of an excessive oil leak underneath the vehicle. The vehicle was taken to huber ...Feb 12, 2016 · The Northstar cylinders, rings and pistons are noted for longevity, as is the entire lower end - crank, rods, bearings. Timing chains are forever, timing chain slippers need replacement over 100,000 miles or so. Your roller cams and cam followers are not subject to the wear of the pre-2000 flat tappet setup.Here are the most common signs of head gasket failure on a Northstar: - Overheating. - High pressure build-up in the coolant surge (fill) tank, that remains when the engine cools off. - White smoke from the exhaust (condensation/water vapor is completely normal for any car) - Coolant smell from the exhaust. - Engine temperature spikes during ...The 4.9L is no more reliable than a Northstar, it's susceptible to its own problems, including H/G issues, just like every other engine ever made. It's a decent engine, but the Northstar eclipses it in nearly every way. That engine wouldn't be an option for you anyways, unless you sell the car to buy a 4.9 powered one.No, the engine is completely stock. We have a pulley, but some idiot ordered the one for the Gen III engine, so it's not installed. The Northstar does not have an adjustable FPR. It has the same style vacuum controled FPR that pretty much every other vehicle on the road uses. AN adjustable FPR doesn't only use vacuum to control pressure.While the Northstar V8 is well engineered, like other engines they’ve had some problems. According to various sources, head gasket failures are not uncommon. Nor is oil burning …Jul 30, 2014 · Northstar engine - best year ? ... 2000+ have many updates/upgrades, including longer head bolts, and changes to the block casting process, reducing HG issues. Some '04s and all '05+ Northstars have coarse thread head bolts, virtually eliminating HG issues. ... My 04 Deville north star runs great, but drinks a quart of oil every 1500 miles …Cadillac Northstar Engine Head Gasket Repair. Northstar Performance International : New Online Store! ... Worn Exhaust Cam shaft? 1993-1999 Northstars have this problem over time, especially if they haven't been driven hard. ... But idling in traffic and "babying" the engine will result in lack of lubrication (splash oiling) and worn lobes ...2006 Buick Lucerne Engine Problems. Find something helpful? Spread the word. 21.9k. Click on a problem below to read more. Engine Stalls/Shuts Off While Driving 2. Engine Runs Roughly 1. NHTSA ...Worst Cadillac XLR Engine Problems #1: Oil Leak 2006 XLR Average Cost to Fix: $6,000 Average Mileage: 28,000 mi. Learn More #2: Service Engine Light Is On 2006 XLR Average Cost to Fix: N/A Average ...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 …NorthStar Deluxe Horizontal/Vertical Log Splitter - 37-Ton, 389cc Honda GX390 Engine. While the other model of this splitter has the smaller Gx270 installed on it, this model has the larger slightly more powerful Honda GX390 installed. One of the things that I really loved about this engine is just how fuel efficient it is.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.1999 STS Northstar problems. Hello, I am new to this forum and not a Cadillac owner yet. I am currently looking at a 1999 sts with the northstar v8 and i have some questions / concerns. It has 160xxx miles the power steering gets tight and loose here and there. there is a strong smell of anti freeze throughout the car but the current owner ...northstar engine problems book: Genres: Think about the genre you prefer (fiction, nonfiction, mystery, sci-fi, etc.). Recommendations: Ask for advice from friends, join book clubs, or explore online reviews and suggestions. Author: If you favor a specific author, you may enjoybrougham. We're getting all over the place here. He said it's a 1992. So it has a fuel injected 305 with the same belt setup and overall look as the 350. The only difference engine wise is less performance because of the smaller size. 350 cars also got stiffer suspension and more heavy duty parts.Today we look at a very clean 2005 Pontiac Bonneville GXP. This 4.6L Northstar V8 engine is being sold married to the 4T80E automatic transmission as a dropo...Feb 17, 2022 · Why I didn't include the Northstar on my infamous list.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday TicketAJxtcman. 3877 posts · Joined 2007. #4 · Jan 22, 2008. In the 96 to 99 engines the Intake Cams are the only mechanical differences. The tranmissions are different from a Y to a 9 application. The biggest part is the final drive gear ratio. 3.11 vs 3.71. The PCM program is different on many levels.300ft-lbs@4000rpm. The 4.9 is a standard two-valve pushrod engine. The NS is a four-valve OHC. The NS has higher peak torque and HP numbers, but they happen higher up in the revs. Displacement is a wash, as Cadillac was getting essentially the same 4.9 numbers out of the 4.5 in the Allante with tuned-port injection.NorthStar Deluxe Horizontal/Vertical Log Splitter - 37-Ton, 389cc Honda GX390 Engine. While the other model of this splitter has the smaller Gx270 installed on it, this model has the larger slightly more powerful Honda GX390 installed. One of the things that I really loved about this engine is just how fuel efficient it is.None of the major production engine rebuilders are doing Northstar V8s, and some rebuilders told us certain critical internal parts are unavailable (such as oversize crankshaft bearings). Add to this the fact that the cylinder liners can't be replaced or overbored and it doesn't leave much to rebuild. Even the heads are throw-aways, …Oiling Issues. Far and away, most of the Northstar's issues have to do with oiling. GM fixed a lot of these problems in the 2000 model year, but earlier engines are known to …Aug 27, 2023 · The Northstar engine, which was produced by General Motors, had its fair share of problems during its production years. While the engine itself was praised for its power and performance, certain model years experienced recurring issues that have become a cause for concern among car owners and potential buyers.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 ...twindavid, 03/19/2011. 1998 Cadillac DeVille 4dr Sedan. 21 of 24 people found this review helpful. I have found the Deville to be comfortable, quiet, and surprisingly fuel efficient. The car ...To repair the head bolt problem requires a complete teardown, rethreading the holes & replacing the head bolts. Some repair shops refuse to replace a Northstar head gasket, the ones that will, the starting price is $2,400 up to $4,500. Many suggest “just replace the engine”. Replacing the engine is in the $6,000 to $7,000 range.Some common Northstar engine problems include head gasket failures, excessive oil consumption, knocking or pinging, oil leaks and no oil pressure. Although most of these issues are easy to resolve, Northstar engines are very expensive to repair, and preventative maintenance is critical.Here are the most common signs of head gasket failure on a Northstar: - Overheating. - High pressure build-up in the coolant surge (fill) tank, that remains when the engine cools off. - White smoke from the exhaust (condensation/water vapor is completely normal for any car) - Coolant smell from the exhaust. - Engine temperature spikes during ...2. Oil filter gasket itself. 3. Oil filter adapter O-rings/composite seal plate (depending on year) and (if fitted with V03) - oil cooler lines. 4. Tossup between cam cover seals and oil level sensor in the lower front of the pan. 5. Halfcase and oil pan formed silicone seals (not "gaskets") 6 Rear main bearing seal at the flexplate.9,808. Location. New Jersey. May 26, 2012. #8. HT-4100 is not a good engine the v8 368 6litre known as the v8-6-4 is not a bad engine its the same design as the 425 7.0 litre and the 500 8.2 litre. the problems were the computer disconnect it and it runs forever.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.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 ...Engine Cranking, No Start. Here are the common issues that can cause your DeVille to crank but not start. Your car's engine needs air, fuel, and a spark to run. It is highly likely that if the engine is cranking but not starting that it has thrown an OBDII code. Use an OBDII scanner to check and see if the engine has thrown any trouble codes.65 posts · Joined 2013. #18 · Jul 3, 2013. Re: Adding STOP LEAK to 2004 Cadillac DeVille Coolant. Factory service manual (1997) says to use Goodwrench or Havoline DEX-COOL and add three engine supplemental sealant (GM #3634621) pellets to the lower radiator hose.This unassuming 1987 Pontiac Fiero GT is hiding a 4.6L Northstar V8 under its rear engine cover, which was originally pulled from a Cadillac Seville STS sedan.Oct 16, 2016 ... Go to channel · The Northstar 4.6L Engine Problems. Powertrain Products Inc•8.5K views · 8:29 · Go to channel · Cadillac DTS Transmissi...Late 90's and early 2000's Northstar engines were quite bad about developing lower end oil leaks. Cadillac seems to have gotten that sorted out and we have not had any problems with oil leakage for the past couple of model years.Oct 30, 2010 · 756 posts · Joined 2003. #6 · Oct 31, 2010. The headgasket problem has been resolved as they went to a different deck design on the top of the block where the head meets the block. 1953 Cadillac Eldorado Convertible. 1954 Cadillac Coupe de Ville. 1993 Cadillac Fleetwood Brougham (Sold) 1996 Cadillac Fleetwood Brougham.Apr 17, 2024 · But know that every engine has its quirks, and the Northstar is no exception. Northstar V8 life expectancy often reaches between 120,000 to 150,000 miles. Best year for the Northstar engine is the 2002 model. What year Northstar engines to avoid: From 1997 to 1999 model years. Maintenance plays a pivotal role in extending this engine’s life.Your engine - high mileage - total rebuild by yourself with help - $2,500 to $3,500 and a LOT of personal time and labor. Look at these sites - www.northstarperformance.com , www.carrollcustomcadillac.com, www.huhnsolutions.com. Premium Member.Last year saw a huge funding boom for Southeast Asian consumer investment apps and if Pintu’s funding announcement today is anything to go by, that looks set to continue. The crypt...May 11, 2021. #1. My 2019 Ram 1500 with 5.7 with approximately 48k miles developed a ticking noise. It sounded like a exhaust leak, but as the engine heated up, it went away. The noise was quite loud. I thought it was an exhaust leak on the exhaust manifolds. Well I took it to the dealer and the tech thought the same thing.To repair the head bolt problem requires a complete teardown, rethreading the holes & replacing the head bolts. Some repair shops refuse to replace a Northstar head gasket, the ones that will, the starting price is $2,400 up to $4,500. Many suggest “just replace the engine”. Replacing the engine is in the $6,000 to $7,000 range.Cadillac Northstar owners to those whose vehicle is overheating .My 99 Deville was overheating turns out it was Catalytic Converter.Dont rely on PCM for code.If the Cat converter gets plugged up the heat will not get past converter it will back up into engine block causing overheating.My deville ran at between 190 & 201 degrees this morning.If you have a misfire the unburnt fuel goes into ...13 posts · Joined 2010. #1 · Apr 27, 2010. I want to report on fixing a low oil pressure problem on my 2001 STS. I received a warning light at idle saying to shut down the engine. At a higher rpm it would go out. The engine sounded normal, no tapping or knocks so I figured it was a bad pressure sender. I replaced the sensor and the problem ...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 ...Engineering teams face steep challenges when it comes to staying on schedule, and keeping to those schedules can have an impact on the entire organization. Acumen, an Israeli engin...Is this the first teardown video you've seen on this channel? There are over 110 more as I upload one a week every Saturday evening! Check out my other teard...I was advised by my local cadillac dealer to find a good used northstar and install, which I did. I found a engine with 80000 miles on it. After replacing engine, it started right up and sounds good. But my problem is that when you come to a stop when idling the check engine light comes on and it starts missing and when you accelerate it clears up.2001 Cadillac DeVille engine problems with 85 complaints from DeVille owners. The worst complaints are engine burns oil, oil pan leak, top end water leak, cracked radiator, and cracked engine block.To repair the head bolt problem requires a complete teardown, rethreading the holes & replacing the head bolts. Some repair shops refuse to replace a Northstar head gasket, the ones that will, the starting price is $2,400 up to $4,500. Many suggest "just replace the engine". Replacing the engine is in the $6,000 to $7,000 range.Northstar engine. Rebuilt, (time sert) new headgaskets, new alternator etc, the works..Car ran great for a few years. Here´s what going on since last couple of weeks: Problem: At idle it goes up and down 800-1500 rpms. misses and chugs, comes down to 800, revs up again, misses chugs etc etc….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.. Fuel Pump Troubles. Problems in the EFI (Electronic Fuel ISubmariner409. 83882 posts · Joined 2006. #15 · Apr 24, 2016 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!F. FCSLEVIN Discussion starter. 29 posts · Joined 2018. #1 · 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 … Dec 23, 2022 · Northstars with failing head gaskets due to cyl Some common Northstar engine problems include head gasket failures, excessive oil consumption, knocking or pinging, oil leaks and no oil pressure. Although most of these issues are easy to resolve, Northstar engines are very expensive to repair, and preventative maintenance is critical. Dec 4, 2020 · The 32-valve design of the Norths...
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