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Find the Cadillac Technical Service Bulletin (TSB) on oil consumption and piston ring cleaning - a Northstar needs to be RUN - if babied they tend to get sluggish and EAT engine oil. The TSB is linked in the sticky thread "Northstar ring cleaning procedure" on this main forum threads page.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.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 more#ct6 #blackwing #cadillac #cadillaclyriq #northstar #camarozl1 #sleeper #chevrolet83868 posts · Joined 2006. #2 · Aug 8, 2016 (Edited) The 2000 redesign cut way down on the head bolt thread problems. 2004 went further with coarser threads on the head bolts. 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.If there are any engine or other trouble codes in memory, they will be displayed. On the 1993-'95 models (pre-OBD II), trouble codes have a letter prefix, three-digits followed by a "C" for current or "H" for history code. ... Northstar Engine Features The Northstar V8 has a die-cast aluminum block with a bottom end girdle that splits …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 ...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.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.The 4.6L V8 engine found in models from 1995-2005 were notorious for failure due to a design flaw involving the use of torque-to-yield bolts in the head gasket. Essentially, …Personally, I would change coolant - ANY coolant - every 3 years, religiously. The car runs DEX-COOL, the truck runs Ford Coolant - a similar long life coolant, and no problems. Cadillac allows a coolant/water ratio of between 50/50 and 70/30. I usually run near 60/40. Premium Member. If it won't run, chrome it. Maryland Eastern Shore.1) Cylinder Head Failure. This is a good problem to knock out first since it's primarily an issue on early 2011-2013 Pentastar engines. Some early 3.6L V6's ran into cylinder head failures on the left bank. The underlying cause is overheating of the valve seats on cylinder #2.Mar 12, 2013 · 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 ...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 ...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.Oct 2, 2013 · 99 Deville water pump cover bolt size. Vancouversonny. Jan 23, 2024. 1. 116. Jan 23, 2024. by Tripwire. 1 1 of 252 252. Discussions relating to the Northstar System and various drivetrain mechanical/electrical/sensor problems.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.DeVille. 157,000 miles. The contact owns a 2002 Cadillac Deville. The contact stated that while driving 55 mph, the engine stalled and the steering wheel became difficult to turn. As a result, the ...Learn about the common problems and issues with the Northstar engine series from General Motors, such as oil leaks, head gasket failures, and carbon buildup. Find out which models are the worst and which ones are safe to buy.I have a 2005 Bonneville GXP with the 4.6L Northstar engine. The engine has 46,600 miles on it. I'm basically desperate to find a solution because I need this car to get to work in the morning. I've posted this in the Bonnevilleclub.com forum and the w-body.com forum, and have heard suggestions that it is a misfire and might be the spark plugs ...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 …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 & RepairIf there are, then there would be an internal engine problem, like a head gasket or head. Of course, you will want to make sure that the system is full, the coolant is circulating, and the cooling fan(s) are working as well as the pressure cap holding pressure. ... 2001 cadillac DTS,175,000 miles, Northstar engine overheats. have flushed engineThe Northstar engine was an L47 block built by General Motors betweenTo order, select your kit below by determining the ye 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 …26328 posts · Joined 2010. #3 · Oct 31, 2014. The N* head gasket issue is blown way out of proportion. IF it happens, it'll cost you $2,500-$3,000, depending on what else you have done while it's apart. After that, the engine will outlast the rest of the car, easily. Keep in mind, it's a 12-14 year old luxury car. NORTHSTAR HEAD BOLT REPAIR #1: The early 2000's Cadillac N Example: "Bad Brakes", "Toyota Recall", etc. Bump the DeVille problem graphs up another notch. Get answers and make your voice heard! 2004 Cadillac DeVille engine problems with 23 complaints from ... ben.gators. 5855 posts · Joined 2009. #2 · Dec 9, 2009.

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.What year do you guys say is the best,with out having having to worry about the motor blowing a headgasket? Did Cadillac ever fix this problem, from 1992-1999 Northstars I have read that it seems like the headgaskets were BAD!! I wouldn't mind buying a 2000-up Deville or a DTS. There getting pretty cheap now to.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 ...Re: overheating problem with 2000 deville with 4.6 northstar the PURGE LINE is the only way of expelling air from the Northstar cooling system - it is a 3/8 diameter hose that goes from a hollow bolt in the thermostat/waterpump housing area of the engine - and plugs onto a nipple on the side of the SERGE TANK -The 2007 Cadillac STS has 4 NHTSA complaints for the engine at 98,750 miles average. CarComplaints.com : Car complaints, car problems and defect information Latest News

Step 2. Check your thermostat. The thermostat gauges the temperature of the engine to control the flow of coolant into the cylinder block and radiator. A faulty thermostat might not open, meaning coolant won't flow. This in turn will cause the engine to overheat. Check the thermostat by starting your engine and letting it idle for a few minutes.Cadillac Seville STS Northstar 4.6l from 1993. (run around 170.000km) Problem: It all started with Traction Control Disabled When starting and driving the car it always showed traction control disabled. Since a few weeks I had some serious problems starting the car. Tried a few times, you could only hear a few clicks from the starter …The Northstar engine is advertised as a 100k wonder, no need to tune ect. Meanwhile, in truth, they have known head gasket and oil usage problems. ... After the problems with the engines surfaced "conditioning" as you call it was recommended. Seems like a marketing ploy by Cadillac as the "conditioning tablets" contain similar ingredients to ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Average Cost to Fix: $600. Average Mileage: 95,000 mi. T. Possible cause: I have a 2005 STS 4.6L Northstar....Let me start by saying I first bought car with 89,xxx .