Cadillac Northstar Overheating Causes

A good friend of mine, a Cadillac mechanic for 35 years, told me that the Northstar is a "clearance engine" somewhat akin to a race car with it's tolerances, and that using oil in the quantities mentioned was normal. Check for coolant flow at the Purge line,this is a common problem on the Northstar. I have a 2000 Cadillac SLS with a overheating problem. 2000 cadillac deville overheating. It is very true that the main cause of a blown head gasket with these engines is that the original head bolts stripp, and pull from the head, and block. There are typically two weep holes in a water pump. Of course, you might just have another simple leak of coolant somewhere. Yes, a thermostat is a common cause of engine overheating. The Northstar has been used in several cars in the GM lineup, including the Cadillac Seville, Buick Lucerne, Pontiac Bonneville and Cadillac Eldorado. It causes damage to the engine each time overheating occurs. The vehicle was taken to a dealer, who diagnosed that the engine needed to be resealed due to a leak coming from the valves. Titan® Head Gasket Sealers are rated #1 by auto mechanics. The following is a short list of technical documents for your convenience. When it starts to overheat if I rive the engine the gauge goes back to normal, then starts to rise again. View all 59 consumer vehicle reviews for the Used 1999 Cadillac DeVille on Edmunds, or submit your own review of the 1999 DeVille. With your coolant at the correct level, does your Cadillac run hot when running at high speed (65mph or so) or when going up steep hills? If so, you possibly have a bad head gasket. The failure would occur whenever the vehicle was in operation for a few minutes. Master ASE certified auto, diesel and machinist. The northstar is a wonderful engine until you have the head gasket problem the engine has to be removed to repair but not all of them have the problem. It drives me crazy to think that the gaskets are bad and it's a shame that GM didn't engineer the 4100 differently. Leaking coolant is one of the more common types of fluid leaks on DeVilles. Ok, here is my problem. Some common Northstar engine problems include head gasket failures, excessive oil consumption, knocking or pinging, oil leaks and no oil pressure. There are typically two weep holes in a water pump. See the 1999 Cadillac Seville price range, expert review, consumer reviews, safety ratings, and listings near you. The most likely cause if the car has over 70,000 miles is head gaskets. We dont use dex cool in them! Check To See That The Oil Jugs You Buy Have The Exact Amount Of Oil In Them And Have An Inner Seal Under The Cap. my 2000 cadillac Seville Northstar motor is overheating, I changed the thermastat with no luck what do I do? I need my vehicle asap for work. Could it be the head gasket? What other possibilities could cause this? I'm not aware of coolant on the ground from a leak. I have a 1996 Cadillac concours with a northstar engine. Flushing and other methods will do you no good. If your transmission is running hot, be aware of possible causes. If you are capable you can save some $$$ by removing the radiator and taking it to shop. Could either the spark plugs, wires, or the ignition coil be the cause? P. World's only "Ploymer-Based" Sealer. Our local mechanic replaced the Water Pump, the thermostat, and the overhead gaskets to no avail and it continued to overheat. Overheating problems due to the head gasket may also be due to a break in the head gasket that is allowing combustion gasses to be pushed into the coolant. I few weeks ago i noticed that the cooling water temp when up i little bit and then quickly goes down. We have a large archive of technical information, articles, how-to, diagnostic guides, etc. However, there are numerous items that can cause an overheating condition. I finished working on my 2004 V8 overheating problem a few days ago and think the root cause is worth sharing. the car still overheats. The popular 2000 and 2002 Cadillac DeVilles are prime casualties, with the engine tending to overheat due to a leaking head gasket. I am a novice so I hope this makes sense. Northstar engines can be found in Cadillac garages and via online websites. If this has the northstar engine it has likely already been overheated and damaged. He has been offered $500 for it. Thermagasket…. vehicle heats up after being driven about 15 miles and overheated on Interstate when starting up mountain. my daughter discovered the Cadillac Deville 1999 northstar model/vehicle has numerous issues due to overheating and head gaskets. i bought a cadillac deville with a 4. Need suggestions. It is very true that the main cause of a blown head gasket with these engines is that the original head bolts stripp, and pull from the head, and block. In this Pit Stop we look into Northstar Cadillac engine and answer why it can and cannot be a great engine for a buildup and many other readers questions. Inside the thermostat housing the thermostat pin inserts into a hole that is on top of a column which is part of the thermostat housing mold. When it comes to your Cadillac DeVille, you want parts and products from only trusted brands. com FREE DELIVERY possible on eligible purchases. It may be losing coolant and you can't explain where it's going. Flushing and other methods will do you no good. If this has the northstar engine it has likely already been overheated and damaged. 3- No, seriously. So my car has been working great. I know its possible to convert a l98 to a lt1, and people have done it with Lb9s as well, how hard is it, and what do you need to modify? I also have a cadillac northstar engine with a cracked block, can any parts go on my 305, heads etc? Will it be pointless? I already have a fresh 305, I dont want a 350. The thermostat gauges the temperature of the engine to control the flow of coolant into the cylinder block and radiator. When driving, sometimes it feels like the power is reduced and the engine is vibrating slower than usual. Why Is My Car Overheating? There are quite a few reasons why your car may be overheating. With a DOHC design, one camshaft operates the intake valves, the other one the exhaust valves. Re-assembled engine and retested: Smooth running engine / no more misfire codes!. Failure to use the engine coolant supplement (sealant) and the approved coolant antifreeze could result in major engine damage. The main goal of your car's cooling system is to remove heat from your engine block by running coolant through cooling passages and transfer that heat to the air through the radiator at the front of your car. The main reason for all the overheating and related problems on the NORTHSTAR ENGINES is actually a 'chain reaction' which starts at the root of all causes - the electrolytic corrosion - caused by the micro-Galvanic currents which exist between the 2 unlike metals: the Aluminum Alloy castings of the Cylinder Block and the Cylinder Head - which. com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. Although most of these issues are easy to resolve, Northstar engines are very expensive to repair, and preventative maintenance is critical. The top one acts as a vent that allows any moisture to evaporate rather than trapping it and causing bearing corrosion and then failure. Recommended Northstar Repair Facilities Having recently suffered a blown head gasket (and then some!) on my 98 Eldorado ETC, I wanted to make sure that the shop I took my car to to get fixed would know what they were doing with my car. Overheating (Engines) Cadillac Northstar is a a type of motor car engine produced by the American compant Cadillac. 5 Headbolt V8 This block has 1 depth for all head bolt holes. Some overheating problems aren’t related to the cooling system at all. Here are the most common problems that will throw the code. Cadillac 2008 DTS Manual Online: Engine Overheated Stop Engine, Engine Power Reduced. The vehicle is very comforting, it has leather seats they heat up it has an worn steering wheel it seems like it wore down fairly easy. the car still overheats. If you have head gasket or overheating pr. A 2015 Cadillac ATS Coupe at The Detroit Auto Show. Cadillac 2008 DTS Manual Online: Engine Overheated Stop Engine, Engine Power Reduced. 2001 Cadillac Deville overheating help So we have a 2001 Cadillac Deville with a Northstar engine that won't stop overheating. I get these cars from thousands of miles away to fix. The Northstar V8 engine family is General Motor's top-of-the-line luxury power plant. my daughter discovered the Cadillac Deville 1999 northstar model/vehicle has numerous issues due to overheating and head gaskets. The most likely cause if the car has over 70,000 miles is head gaskets. Failure to use the engine coolant supplement (sealant) and the approved coolant antifreeze could result in major engine damage. Master ASE certified auto, diesel and machinist. They use about one quart every 1,500 - 2,000 miles. Cadillac did flip the engine 90 degrees and run power to the rear wheels in 2004 for SRX, XLR, and STS. A bad gasket in either location can cause your engine to run hot, to lose coolant, and–ultimately–to score the cylinder liners as a result of overheating and/or burn out the main bearings as a result of dilution/contamination of the motor oil. Breaking News Emails. NHTSA ID Number: 10115013 Manufacturer Communication Number: PIP5300 Summary This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that engine overheating, and/or poor heater performance, AC off message, and Malfunction Indicator Lamp illumination. The comfort level is very good because of a smooth ride and roomy. The performance is great it is easy with a v8 engine but has recently developed a small oil leak which I have been told by a mechanic to be common to a Northstar engine which my car has. And, is very expensive to repair. An example where the reason for the overheating was not the cooling system but the tune-up is a 1947 Cadillac with a 500 cubic inch Cadillac engine that belongs to a local car collector; after everything in the cooling system had been changed, the car was brought to us to see if we could help. 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. The most common overheating problem with the Northstar engine is a blocked purge line. It may be losing coolant and you can't explain where it's going. With the mileage that you have on the vehicle, and not knowing whether thread repair has been performed on the head bolt holes, make it more of a legitimate possibility. Thanks John, To properly diagnose your overheating complaint we need rule out a few basic things. I know part of the problem was there was a leak where the plastic and metal met on the left side of the radiator. Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools. Cadillac 2008 DTS Manual Online: Engine Overheated Stop Engine, Engine Power Reduced. com If you are in the Tacoma/Seattle area and own a Cadillac with the Northstar engine, we are here to help insure that you enjoy your car forever. Repairs all head gasket symptoms including overheating, coolant loss, and pressure in system. Introduced in 1993 in the Cadillac Allante, Eldorado and Seville STS, the 4. A bad gasket in either location can cause your engine to run hot, to lose coolant, and–ultimately–to score the cylinder liners as a result of overheating and/or burn out the main bearings as a result of dilution/contamination of the motor oil. Does your cadillac northstar engine need headgaskets? Is your check engine light on and you need expensive transmission work? I am a factory certified master technician and I can do these repairs in my own shop cheap!!! All work guaranteed! I also service all GM vehicles. Some overheating problems aren't related to the cooling system at all. TITAN® Head Gasket Repair Sealer Kit for: Cadillac Northstar Engines. Some common Northstar engine problems include head gasket failures, excessive oil consumption, knocking or pinging, oil leaks and no oil pressure. What Causes the Thermal Cutoff to Keep Going Bad. Find the best used 1997 Cadillac DeVille near you. Tnx in advance!What could be the cause for occasional overheating of a 1998 Cadillac Concours DeVille?type how to check over heating car into search box. 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. So your Northstar powered car overheated, or it's blowing white smoke. Why is my 2000 Cadillac Deville over heating and I have change the radiator, thermostat and the water pump. I would highly recommend another dealer who if there are any issues they will be there to help not push you aside. If you do not know the history of this issue, please read cowgirls post about the slushy sound post. 1- exhaust gases blow into the cooling system under load, such as when you climb a hill or pass someone. So as a matter of fact, the Northstar has four camshafts, compared to one as in a classic V8 (like the Cadillac 4. This pumps enough air though the engine to keep temperatures from getting hot enough to cause any damage. 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. But some of them your mechanic won't. Can dirty coolant cause high idle in cadillac' s? No, coolant only keeps the motor from freezing or overheating, it otherwise has nothing to do with the performance of an engine. Yes, a thermostat is a common cause of engine overheating. Your engine's cooling system relies on coolant to circulate and remove heat from the engine. 2- Turn on your defroster and your heat to HOT, fan on High. These automobiles are Cadillac, Oldsmobile and Buick models dating back to 1993 through 2008. The most common overheating problem with the Northstar engine is a blocked purge line. Replaced the valve spring, valve seal and keepers – a job that can be done with the engine in-chassis and without engine disassembly if other tricks are used. Cadillac Northstar 4. The Cadillac DTS (DeVille Touring Sedan or D-Series Touring Sedan) is a full-size luxury notchback sedan that was produced by Cadillac. See the 2000 Cadillac DeVille price range, expert review, consumer reviews, safety ratings, and listings near you. Flushing and other methods will do you no good. There are quite a few things that can cause the P0300 trouble code to trigger the Cadillac DeVille. Highway I'm fine the temp satys aroung 199 to 205 but as soon as I get in the city the car starts to run hotter. The cost of diagnosing the P0300 CADILLAC code is 1. Hi, great site btw. Cadillac may used to be Luxury and Client appreciation but not anymore. They use about one quart every 1,500 - 2,000 miles. If the thermostat is "stuck" it can close off all coolant to the engine…thus overheating and no heater heat will result. Introduced in 1993 in the Cadillac Allante, Eldorado and Seville STS, the 4. 2008 Cadillac DTS 1SA My vehicle is very reliable I have had very few problems with it. Average repair cost is $310 at 76,600 miles. 5-liter V6, 4. This is just one of the solutions for you to be successful. Learn what does P0300 Cadillac Cylinder Misfire Detected Random Cylinders means, location and how to repair? When a misfire occurs, engine speed will fluctuate. Regardless of the underlying cause, the problem you are experiencing now is that your fine American Luxury Car (Cadillac) is overheating, or at the very least losing coolant. i determined that the rubber coupling between intake plenum. 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. With your coolant at the correct level, does your Cadillac run hot when running at high speed (65mph or so) or when going up steep hills? If so, you possibly have a bad head gasket. Cadillac engineers designed the Northstar with two things in mind: high performance and low maintenance. 6L V8 66,000 miles I recently got my hands on a 97 Deville in excellent condition, except for overheating issues. Cost of diagnosing the P1258 CADILLAC code. Sucks, as the car was such an awesome drive for a while, but the $$$$ I've spent on this car just to try and fix this and that is ridiculous. Average repair cost is $310 at 76,600 miles. There are typically two weep holes in a water pump. Here at Advance Auto Parts, we work with only top reliable Coolant Reservoir product and part brands so you can shop with complete confidence. If you are experiencing coolant loss in the form of a leak, refer to the “Coolant Loss” symptom on this site. 6 liter engines are being shipped daily to warranty companies, Cadillac dealerships, engine repair facilities and directly to Cadillac vehicle owners. Cadillac Brougham overheating problems can be costly. Replaced the valve spring, valve seal and keepers - a job that can be done with the engine in-chassis and without engine disassembly if other tricks are used. 2000 cadillac deville northstar engine, 134,000 miles, motor was pulled and gone thru 3-4 yrs ago, started to overheat week ago. Why is my 2000 Cadillac Deville over heating and I have change the radiator, thermostat and the water pump. Maybe it should be the first thing you replace, if the part is easy to access. Get the best deals on Complete Engines for Cadillac DeVille when you shop the largest online selection at eBay. See the 1999 Cadillac Seville price range, expert review, consumer reviews, safety ratings, and listings near you. Most auto repairs shops charge between $75 and $150 per hour. This all-aluminum engine was as sophisticated as any offered by a premium European automaker, and included dual overhead camshafts, four valves per cylinder and direct ignition. The auto repair labor rates vary widely across the country, and even within the same city. Hi, i'm new to the forums, but not new to northstar engines. I know part of the problem was there was a leak where the plastic and metal met on the left side of the radiator. Average repair cost is $310 at 76,600 miles. Cadillac 2008 DTS Manual Online: Engine Overheated Stop Engine, Engine Power Reduced. For a while it has been saying Coolant Level Low, and Change Oil. Titan® Head Gasket Sealers are rated #1 by auto mechanics. Here are the most common problems that will throw the code. There are 4 gaskets between this housing that are often times overlooked when doing just a water pump. Mechanic has had in city for 2 weeks won't overheat in any situation. The comfort level is very good because of a smooth ride and roomy. Installed in Cadillacs and other models from 1993 to 2010. Hello there, many different faults can cause your 2001 Cadillac DeVille to overheat. i see alot of fellow "Cadillac-erz. Overheating problems due to the head gasket may also be due to a break in the head gasket that is allowing combustion gasses to be pushed into the coolant. Mysterious overheating conditions that are not corrected with normal service procedures(T-stat, external leaks), are most often result of leaking head gaskets. Repairs all head gasket symptoms including overheating, coolant loss, and pressure in system. What can cause the engine to overheat. I know part of the problem was there was a leak where the plastic and metal met on the left side of the radiator. 1- exhaust gases blow into the cooling system under load, such as when you climb a hill or pass someone. There are quite a few things that can cause the P0300 trouble code to trigger the Cadillac DeVille. But remember that there are a few other common causes that will make the engine overheat. Great on distance, running then driving. Re: overheating problem with 2000 deville with 4. We averaged 16 mpg in a Touring Coupe and 18 mpg in a Northstar-engined base coupe. View all 59 consumer vehicle reviews for the Used 1999 Cadillac DeVille on Edmunds, or submit your own review of the 1999 DeVille. I can fix the head gasket, oil leaks and also a fully rebuild. Most transmission problems are a result of overheating. The head studs fail causing a head gasket problem, a head gasket fix doesn't fix the problem re drilling and tapping the studs fixed the problems and the engines usually last up to 350k Mi research a company called "Northstar Performance" if you love your Cadillac they'll help you keep it alive for years to come. Depending on you engine configuration and the location of the water pump, the result could be trapped air in the water pump. I have bleed the bleeder screw. Check for coolant flow at the Purge line,this is a common problem on the Northstar. When it comes to your Cadillac DeVille, you want parts and products from only trusted brands. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your DeVille's engine and keeps it from overheating. The Northstar V8 engine family is General Motor's top-of-the-line luxury power plant. What Causes the Thermal Cutoff to Keep Going Bad. I've changed thermostat twice? The 1st time I changed the thermostat and added coolant, it didn't overheat for approx. Here are some other circumstances that can cause a vehicle to overheat: Late timing: If your ignition system is malfunctioning, late timing may be causing your vehicle to overheat because the spark plugs are firing the fuel/air mixture after the piston moves back down from. com, the official. Im Solo da Champ owner of a 1999 Cadillac Deville sharing info on how i got my "lac" to go from overheating and antifreeze guzzling to cool calm and coasting. If you have head gasket or overheating pr. If the vehicle has been stored for some time, rodents may have climbed into the exhaust pipe and built a nest anywhere from the interior of the engine to the exhaust outlet. That's rather a small leak to cause severe overheating, but I guess it leaks faster with the system pressurized. Here are some other circumstances that can cause a vehicle to overheat: Late timing: If your ignition system is malfunctioning, late timing may be causing your vehicle to overheat because the spark plugs are firing the fuel/air mixture after the piston moves back down from. Some common Northstar engine problems include head gasket failures, excessive oil consumption, knocking or pinging, oil leaks and no oil pressure. my daughter discovered the Cadillac Deville 1999 northstar model/vehicle has numerous issues due to overheating and head gaskets. If the car overheats when at idle, then the most likely faults would be the cooling fan, thermostat, air in the cooling system, or a clogged coolant passage. The most common overheating problem with the Northstar engine is a blocked purge line. We averaged 16 mpg in a Touring Coupe and 18 mpg in a Northstar-engined base coupe. I HAVE BEEN WORKING ON THE CADILLAC NORTHSTAR ENGINE SINCE 1993. 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. The best way to find if that is the case is to go to napa auto parts and get a block tester and check to see if there are exhaust gasses in the coolant reservoir, if so it is the headgasket problem and will range anywhere from 2-5k to get fixed. see below NorthStar M11x 1. Our local mechanic replaced the Water Pump, the thermostat, and the overhead gaskets to no avail and it continued to overheat. This all-aluminum engine was as sophisticated as any offered by a premium European automaker, and included dual overhead camshafts, four valves per cylinder and direct ignition. Another reason why the Northstar is so special, is that is made completely out of aluminum. How to Fix Overheating on a Northstar - Engine maintenance can help prevent engine overheating problems. There are quite a few things that can cause the P0300 trouble code to trigger the Cadillac DeVille. An overheating engine is usually more than a bummer, If you do not take. See the 2000 Cadillac DeVille price range, expert review, consumer reviews, safety ratings, and listings near you. NHTSA ID Number: 10115013 Manufacturer Communication Number: PIP5300 Summary This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that engine overheating, and/or poor heater performance, AC off message, and Malfunction Indicator Lamp illumination. I have a 1996 Cadillac concours with a northstar engine. I have noticed that Cadillac still uses the Northstar V8 (until July '10 according to Wikipedia, but I see it still in the Did Cadillac ever "fix" the head gasket issue on the Northstar? (2011, versus) - Chevrolet, Cadillac, Buick, and GMC -Car forums - City-Data Forum. Losing water - So ive got a 2000 cadilac deville and it over heats it uses so much water i have to put coolant or water moltable times a day when i d. My 1999 Cadillac seville is overheating, since the headgasket is a common problem on the 4,6 Northstar i fear the worst. The head bolts like to back their way out of the aluminum block and cause all sorts of overheating and head gasket issues It's not an issue of "if" it's "when" GM put out an official kit to remedy the problem but it's north of $500 + labor. ), Radiator Fan, Thermostat, or something else. If this is not the case and all above suggestions are exhausted, pull the rad and have a new core installed. This pumps enough air though the engine to keep temperatures from getting hot enough to cause any damage. Cadillac 2008 DTS Manual Online: Engine Overheated Stop Engine, Engine Power Reduced. com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. Which is a known problem with Cadillac Northstar motors. The 1999 Cadillac DeVille has 5 problems reported for over heating. 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. Oil consumption with a Northstar engine is normal. Sucks, as the car was such an awesome drive for a while, but the $$$$ I've spent on this car just to try and fix this and that is ridiculous. all aluminum engine is common enough, aluminum heads are very common. Before we get into the causes of vehicle overheating, let’s help minimize the potential damage to your car NOW until you can get it into a shop: 1- Turn off the AC immediately. We offer Hi-Tech automotive Oil Stop-Leaks, Transmission Sealers and Oil Additives for a wide variety of applications. Overheating Is Also A Common Cause Of OHC Seizure And Breakage If the coolant gets hot enough to boil, it may cause old hoses or an age-weakened radiator to burst. com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. Cadillac DTS Overheating? RepairPal will help you figure out whether it's your Coolant leak (water pump, radiator, hose etc. Cadillac embraced the future in 1992 when it debuted the Northstar V-8. I have a 1997 Cadillac SLS with a 4. The cost of diagnosing the P0300 CADILLAC code is 1. my 2000 cadillac Seville Northstar motor is overheating, I changed the thermastat with no luck what do I do? I need my vehicle asap for work. Overheating and cracked engine blocks in Cadillac DeVilles. Hey Guys Thanks for checking out my post. I drove it about 4 hours on the highway without overheating. He has been offered $500 for it. " - Sherlock Holmes. If you do not know the history of this issue, please read cowgirls post about the slushy sound post. P0300 Trouble Code Diagnosis- Cadillac DeVille. took the car to technician who suggested to replace the engine which would cost $7,000. Promar Precision Engines have been pioneers in remanufacturing the 4. P0174 CADILLAC Tech Notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. Cadillac: Prestige Cars, SUVs, Sedans, Coupes & Crossovers. As of yesterday the temperature is not going down anymore. Accurate Engines is an industry leading remanufacturer of the Cadillac 4. Today, we look at some common reasons why you car overheats, and how you can fix the problem before it turns into a major bill. 6 liter northstar engine that keeps overheating. This vehicle should not be driven until the overheating problem is resolved as repeated overheating can. This will make the water pump fail to deliver coolant throughout the engine, causing serious damages to the Northstar engine. A mechanic may suggest replacing various cooling system components, like a radiator, water pump or thermostat. Some overheating problems aren't related to the cooling system at all. When driving, sometimes it feels like the power is reduced and the engine is vibrating slower than usual. I have a 1996 Cadillac concours with a northstar engine. battery volts low Cadillac CTS / Cadillac CTS Owners Manual / Instruments and Controls / Vehicle Messages / Battery Voltage and Charging Messages / BATTERY VOLTS LOW This message displays when the electrical system is charging less than 10 volts or the battery has been drained. Maybe it should be the first thing you replace, if the part is easy to access. Re-assembled engine and retested: Smooth running engine / no more misfire codes!. i can also have it running up in the lift running and after running it for 30 miles the the tempeture still normal i can go up to 60 on the lift and the tempeture. 2-coolant gets into the cylinders and you leave a trail of white smoke behind you. Overheating problems due to the head gasket may also be due to a break in the head gasket that is allowing combustion gasses to be pushed into the coolant. The compressor can overheat due to the failure of other components. Mysterious overheating conditions that are not corrected with normal service procedures(T-stat, external leaks), are most often result of leaking head gaskets. If you are experiencing coolant loss in the form of a leak, refer to the "Coolant Loss" symptom on this site. Maybe it should be the first thing you replace, if the part is easy to access. This all-aluminum engine was as sophisticated as any offered by a premium European automaker, and included dual overhead camshafts, four valves per cylinder and direct ignition. Installed in Cadillacs and other models from 1993 to 2010. For 1993, the Northstar V8 brought class-leading performance, even in front-wheel drive configuration, to Cadillac's lineup. The head bolts like to back their way out of the aluminum block and cause all sorts of overheating and head gasket issues It's not an issue of "if" it's "when" GM put out an official kit to remedy the problem but it's north of $500 + labor. A mechanic may suggest replacing various cooling system components, like a radiator, water pump or thermostat. I know part of the problem was there was a leak where the plastic and metal met on the left side of the radiator. What Causes the Thermal Cutoff to Keep Going Bad. always copper, stainless steel or some other malleable metal. Below is a list of Attempts I have tried to fix it with, if you can think of something I ha … read more. Images are from the brochure collection of the author. no aluminum head gaskets though. Read More Cadillac XTS. It doesn't like the one steep hill that I have to travel on. It is very true that the main cause of a blown head gasket with these engines is that the original head bolts stripp, and pull from the head, and block. This video will show you the cause of head gasket failure as well as the best fix available for your Cadillac Northstar Engine. I know part of the problem was there was a leak where the plastic and metal met on the left side of the radiator. If An Overheat Warning Appears On The Instrument Panel Cluster And/or DIC, Stop The Vehicle As Soon. The most likely cause if the car has over 70,000 miles is head gaskets. This can happen for a number of reasons, the most common of them being that the cooling system is faulty. When driving, sometimes it feels like the power is reduced and the engine is vibrating slower than usual. I just had a look at a northstar Cadillacman, what a pain to work on that engine! They really stuffed that big engine into a low hooded car with FWD (on this model anyway) and it's a bear to access. Can dirty coolant cause high idle in cadillac' s? No, coolant only keeps the motor from freezing or overheating, it otherwise has nothing to do with the performance of an engine. As of 2016, common problems with Cadillac engines include oil leaks from the lower crankcase portion of the engine blocks of 3. com : Car complaints, car problems and defect information. An example where the reason for the overheating was not the cooling system but the tune-up is a 1947 Cadillac with a 500 cubic inch Cadillac engine that belongs to a local car collector; after everything in the cooling system had been changed, the car was brought to us to see if we could help. The following is based on OEM parts. Breaking News Emails. We are Cadillac Northstar Engine Repair Experts If you have a Northstar Engine that has massive oil or coolant leaks we can help! If you have been told that your Head gaskets are leaking on your Northstar Engine We can fix it we have the ability to Fix and update that engine. ) the owner (*note) 2. Hi, i'm new to the forums, but not new to northstar engines. Sucks, as the car was such an awesome drive for a while, but the $$$$ I've spent on this car just to try and fix this and that is ridiculous. STAN HONDA / AFP - Getty Images. Learn how to diagnose your antifreeze leak and learn what to do next. The vehicle was taken to a dealer, who diagnosed that the engine needed to be resealed due to a leak coming from the valves. When it starts to overheat if I rive the engine the gauge goes back to normal, then starts to rise again. Of course, you might just have another simple leak of coolant somewhere. If this is not the case and all above suggestions are exhausted, pull the rad and have a new core installed. An overheating engine is a definite indication that something is wrong. 6-liter V8 and 4. There is a small diameter hose coming from near the top of the coolant tank,this is the purge line. Notice: If You Drive Your Vehicle While The Engine Is Overheating, Severe Engine Damage May Occur. World's only "Ploymer-Based" Sealer. The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Note look at the bottom to order thermostat. first video with iphone: customer came in with code p0300, p0171, p0174 as well as a trans code. Make sure the brake lines are positioned properly on your Cadillac and replace them if needed. The performance is great it is easy with a v8 engine but has recently developed a small oil leak which I have been told by a mechanic to be common to a Northstar engine which my car has. i can also have it running up in the lift running and after running it for 30 miles the the tempeture still normal i can go up to 60 on the lift and the tempeture.
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