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.If the fuel pump relay fails on a Northstar V8, the engine should still run because the fuel pump also can be energized through the oil pressure sending unit. A four-coil distributorless ignition with a waste spark set up provides spark to the plugs.Rating breakdown (out of 5): Comfort 4.9. Interior 4.5. Performance 4.6. Value 4.5. Exterior 4.6. Reliability 4.4. Write a review. Explore the 2004 Cadillac DeVille.The Northstar is a much better performer. Around town, the 4.9 usually is quicker until about 45, because of the greater amount of low end torque, but the highway performance of the Northstar is insane! 65-80 in the blink of an eye. As a matter of fact, the highway performance of the Northstar is very close to the around town performance of the ...Hello - 2007 XLR Northstar engine work. Hello,I have a 2007 XLR and bought it last month.I love the car and bought it out right.Was taken care of very well seeing the records of every oil change,repair including every leak fixed.So far it drives good.Plans are to pull the engine out next month putting in head and main studs.Starting to have a ...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.The Cadillac Northstar 4.6 Liter Engine 1994-2011 is a V8 engine designed by Cadillac, a division of General Motors, for use in their luxury vehicles. The base engine consists of: An all-aluminum engine block and cylinder head. Dual Overhead Camshafts (DOHC) Variable Valve Timing (VVT)Learn about the common issues and failures of Northstar engines, such as oil leaks, head gasket blowouts, glow plug damage, and carbon buildup. Find out which years of Northstar engines are the worst and how to fix or prevent them.Aug 12, 2022 ... The only Cadillac that I have seen not leaking oil was Cadillac without oil. Bill is probably $6k. The car is worth $2k so why?1G6ET12912B100942 2002 Cadillac Eldorado 4.6L Northstar Engine, Viv code #9 problem: --came in for oil leaks & coolant leaks --engine ran fine prior to service, no warning lights on prior to service - … read moreDeVille. 155,000 miles. The contact owns a 2005 Cadillac Deville. While driving approximately 55 mph, the engine seized. The vehicle crashed into a median and the air bags failed to deploy. The driver sustained major injuries, including two broken feet and a concussion. The driver required medical assistance.Submariner409. 83764 posts · Joined 2006. #19 · Sep 24, 2021. 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. It's in the stickies in Engines; Northstar forum.Northstar Engine Problems. Blown Head Gasket; Rear Main Seal Oil Leaks; Valve Cover Oil Leaks; Excessive Oil Consumption; Carbon Buildup; Water Pump Failure; 1. Blown …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 ...general motors is recalling certain model year 2010-2011 dts and buick lucerne vehicles equipped with v8 engines. THE STARTER OR ALTERNATOR CABLE IS IN CONTACT WITH THE POWER STEERING RETURN LINE.If your Cadillac has the 4.6l Northstar engine, then there is a potential for that problem. The issue is that the block is aluminum and the head bolts are steel. There is a chemical reaction to steel in aluminum that causes the aluminum to corrode and weaken. The result is that the head bolts get pulled out of the block once the threads get too ...Northstar Engines and System Technical Discussion. Northstar 4.6 bottom end. ... When I build an Olds 455 marine engine it gets the following NEW bolts or studs: Intake manifold, exhaust manifolds, heads, rocker arm, timing gear, oil pump, flywheel, flexplate, rod, crankshaft and balancer. .....as a minimum. ... has been a problem area for some ...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.The Northstar engine was an L47 block built by General Motors between 1995 and 2003. This build has a special history as being a dual-tier block utilized in standard and performance automobiles. ... EGR valves fail on most vehicles and this is seen as a minor problem for GM automobiles. Thankfully, the automotive salvage industry is the largest ...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.67 posts · Joined 2007. #1 · Jun 7, 2007. Hello guys! I am new to this forum. I recently purchased a 1997 STS. I knew nothing about the car when I bought it. It has 175,000 on the odometer. When I bought it, it wouldn't run and I narrowed it down to the fuel pump and replaced it. I have it running now but it is running very rough.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 …Check for coolant flow at the Purge line,this is a common problem on the Northstar. There is a small diameter hose coming from near the top of the coolant tank,this is the purge line. With the engine idling,pull the purge line from the tank,if there is no coolant flow from this small hose,it is blocked and this will cause overheating.If the ...What I was refering to was the 89 octane as mid-grade. It appears from the responses that it is okay to run 87 octane in a pre-2000 northstar but i guess I should be more concerned with the head gasket bolt issues in the pre-2000 engines.Okay another quick vid to let you know it's a pain to do, there are 2 sensors one for oil pressure and one for the level, the one in the pan is the one for ...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 …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 ...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.Remove the two 10mm nuts at the exhaust manifold AIR pipe flange. A long morning with decent tools. Follow the instructions. You may find some oil on one or more plug shells. Normal and not of concern. Cassettes - junkyards or at www.rockauto.com, DELPHI, Airtex, AC Delco - all original equipment. Your engine takes only AC Delco #41-987 ...I have a 2000 Cadillac Deville, 4.6L Northstar engine. I have an overheating problem. I have replaced: radiator, water pump, thermostat, water temp sending unit, flushed cooling system & followed manual for refilling cooling system. Pressure tested system & rad cap. No leaks/cap OK.Aug 5, 2007 · 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.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 or oil leaks.Nov 17, 2020 · LD8 Northstar Engine. The LD8 engine is a transverse V8 for front-wheel-drive cars first introduced in 1994 and designed to provide more torque than the L37. Used on all torque-tuned Notaris, the compression ratio is 10:1 and is quieter than previous Northstar engines due to a tuned intake system and better hydraulics. Northstar Engine ProblemsWhile 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 or oil leaks.If your Cadillac has the 4.6l Northstar engine, then there is a potential for that problem. The issue is that the block is aluminum and the head bolts are steel. There is a chemical reaction to steel in aluminum that causes the aluminum to corrode and weaken. The result is that the head bolts get pulled out of the block once the threads get too ...Feb 4, 2024 · The Northstar engine problems were more prevalent in the earlier models, from 1993 to 1999, and especially from 1997 to 1999. These models had weaker head bolts and gaskets, and more oil leakage issues. The later models, from 2000 to 2011, had some improvements, such as stronger head bolts, redesigned gaskets, and better oiling …The Northstar has a very aggressive cylinder hatch pattern, to promote sufficient oiling at high engine speeds (6000 rpm). Unlike many engines, this thing was designed for sustained high rpm use and will run at 6000 rpm all day. The aggressive hatch pattern tends to retain the oil longer than a slicker cylinder wall will.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.As loud as a "backfire" sounds it is nowhere near the pressure that is in the cylinder each time the spark plug ignites the mixture. A backfire will not blow a head gasket. Usually, a repetative backfire is caused by a leaking fuel pressure regulator or a dripping/leaking injector. Not too difficult to diagnose.Worst 2002 Cadillac DeVille Problems #1: Engine Failure 2002 DeVille Average Cost to Fix: $6,200 Average Mileage: 70,000 mi. Learn More #2: Excessive Use Of Oil 2002 DeVilleThe 2006 Cadillac CTS has 26 NHTSA complaints for the engine at 110,783 miles average. (Page 1 of 2)The Cadillac Northstar is a legendary engine that powered many luxury cars, but it also has a reputation for being problematic and complex. Learn about its history, features, and common issues, such as head gasket failures, in this article.Oct 11, 2019 ... Why did the the CAR WIZARD buy a Cadillac with a Northstar V8?!? ... 1992-1997 Cadillac Seville Northstar Review, Buying Guide & Common Problems.My problem: I have a 97 ETC w 4.6L Northstar engine. The car has 172,000 miles on it (I am original owner) but the engine only has 95,000 miles. Was replaced at about 77,000 miles. My current problem is "oil pressure low STOP ENGINE" line comes on after the car is warmed up. As long as I am giving the car gas, the light is out.To order, select your kit below by determining the year of your Northstar powered car, and click add to cart. You can also call us direct at 888-800-9470. Leave a message if you don't get an answer, we return calls promptly. If we don't answer it just means we're wrenching away on a Cadillac, or packaging stud kits.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.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 fault TPS sensor can confuse the ECU causing the idle to be erratic or "hunting". High Idle Speed: The TPS may report faulty values causing the engine idle speed to be increased above normal. This is normally found in conjunction with a slow engine return to idle speed symptom. Slow engine return to idle: A failing TPS can report the …As soon as the engines would be in a overheating situation, the bolts would come off like squeezing a ripe banana. It took many years and many pissed customers but they eventually fixed the problem by using longer bolts with coarser threads (same bolts as the LS6, if I remember correctly). Northstars ftom 2005.5 to 2011 are reliable engines.Learn about the history, features, and performance of the Northstar engine, a high performance V8 produced by General Motors between 1993 and 2011. Find out why the Northstar engine was used in various Cadillac, Oldsmobile, and Buick models, and what were the common issues and problems with this engine.Feb 9, 2017 · Ask Your Own Cadillac Question. Please confirm if you have seen repeated problems with the value system on the Northstar engines, such as broken or bent exhaust or intake values. And if the GM has covered any of the expenses involved with the repairs. Cadillac Mechanic: Chad Farhat. yes i have seen it a lot.Northstar/cadillacCuriously, the 2006 and later Northstar seems to suffer more from timing chain related problems than the earlier engines. One of my daughters drove a 5-speed Honda Civic hatchback to over 250,000 and the engine was never opened. A neighbor had essentially the same car, same year, and it blew the engine at somewhere near 60,000.The Map sensor is very easy to replace. But before replacing it check for 5 volt reference on the 5volt ref circuit and a ground on the low ref circuit, check the resistance of the signal circuit between the PCM and sensor to make sure its not open. Without a scan tool your diagnosis becomes a little more difficult.2 days ago · All 2000-2011 Cadillac Northstar V8s use 5w30 Engine oil. Capacity on all front wheel drive cars is 7.5 quarts, or 7.1 liters including oil filter. Engine Oil Supplements. The only engine oil supplement I will recommend or allow the use of under engine warranty, is GM "Engine Oil Supplement" available through GM dealers. Part number 88862587.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...Changing plugs on a N* is simple. Just loosen all the plugs with a plug socket, and leave the plugs in the holes. Then take a 12" piece of 3/8 fuel line, stick it into the plug hole, over the plug, push it on a little bit and pull the plug out. Installation is reverse of above.527817. 107 posts · Joined 2014. #4 · Sep 12, 2016. the problem with the head gasket on earlier northstar engines is that the bolts can't be reused to bolt the head down. A Failing head gasket at 115K miles is not a problem on the 2007 northstar engines because by 2007 Cadillac switched to better head bolts that allow the head to be removed ...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 …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 …Northstar/cadillac. After reading here and advice from others, I am worried aIs this the first teardown video you've seen on this channel? There 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 & RepairAre you looking for a powerful and reliable off-road vehicle to take your outdoor adventures to the next level? Look no further than the Polaris Ranger Northstar. This rugged, all-... Problem is, the engine bay gets quite warm during operatio Oil loss is one of the most significant defects of Northstar engines. You can avoid them from 2000 to 2005 because they consume excessive oil according to their condition and performance. In such circumstances, the oil consumption increases, and piston damage. The broken pistons do not allow the mixing of fuel with air.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. My problem: I have a 97 ETC w 4.6L Northstar ...
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