Gm 3100 Coolant Leak







GM Pontiac Grand Prix Coolant/Antifreeze Change Guide. Aluminum radiators and heater cores leak not only from electrolysis but also degradation of the corrosive inhibitors in the coolant or improper ratios of coolant to distilled water. If it is a V-6, an intake manifold gasket problem is a real possibility, since this is a known issue with these GM V-6 engines. Try running at the minimum line when cold. Is there a way to get my car fixed through them for free, or low. 8's, 3100, 3400 and the 3. This is less than 6 percent of the 25 million examples of the V6 installed in GM vehicles between 1975 and 2008. Correction Install a new design intake manifold gasket. Check out Chevy's supercheap Gen II small block engine, get some tips on how to make more power and get the history on this historical engine, Featured in the 2008 January Issue of Car Craft Magazine. Replacing intake manifold gasket on a 3100. Here's the story: I own a 1999 Pontiac Grand AM SE (v6 3. Issues with the coolant system in your vehicle can be difficult to diagnose. 3l V8 For 05-08 Pontiac Grand Prix. it has been overheating to the point of water pump failure. Steel Seal Head Gasket Repair creates a seal (as the name suggests) that will set like steel, this will repair the leaks in the cylinder head gasket permanently. Are you looking for wiring products for your current or future project? Look no further we're here to help. These are two entirely different animals. Check for damaged components and look for broken, bent, pushed out, or corroded terminals. Can we all agree that oil leaks suck? Your engine slowly loses. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. GM 3100 experts needed Don't be surprised if it needs a manifold gasket and somebody thought they were "fixing it" with stop-leak. I would not replace your head gasket, GM made the 3100 out of a semi aluminum block which they thought would help weight but when this engine overheats, because it is partially aluminum it ruins the bottom end of the car aswell and i guarantee you your cylinders are worn and you are probably leaking coolant and oil out of your exhaust. Buy Genuine GM 24507875 Thermostat Bypass Pipe: Thermostats - Amazon. 1995-2004 —The following GM service bulletins confirm a pattern of engine intake manifold gasaket defects, which are sometimes covered by a 6­ year/100,000 km secret warranty. Coolant reservoir max line is for a hot engine, if filled to max cold the engine will push the excess coolant out when hot. Once you determined that you have a fuel injector problem we would strongly suggest that you first read our back to back test of the various fuel injector cleaning methods. Another telltale sign of your coolant temperature sensor not functioning properly is if your engine is overheating frequently. When it comes to your Chevrolet S10, you want parts and products from only trusted brands. I fill up the reservoir tank, get it up to temperature and watch for leaks but there is literally none at all. I actually spent an additional 40 minutes trying to figure out how to drain out the coolant if that tells you anything. Per memory the Chevy Lumina uses the 3. Talked to previous owner and. The Mishimoto 1947-1954 Chevrolet 3100 Series Truck Inline 6 X-Line Performance Aluminum Radiator provides your car with enhanced reliability, improved cooling efficiency, and is an ideal upgrade for the brittle stock radiator. The gasket functions as a seal that prevents the combustion process from leaking into the coolant passages. But they will leak from behind the pump where the bearings are. 1984 — Direct fire distributorless ignition and electronic multiport fuel injection were added. Drop by our Las Vegas dealership to learn more!. The coolant reservoir continually contained a brownish looking sludge too. GM recalled 1. This is common as dirt on some engines like the GM 3100 and 3400 engines (via leaking intake gaskets). It is very possible that you have a blown/leaking head gasket. Radiator Cooling. Located in Essexville, MI, Be Cool is proud to say all of our radiators are MADE IN THE USA. The Forgotten 261 6 Cylinder Engine. First diagnose P0125 code. The inlet and outlet provide precise leak-free connections. Hello, I'm trying to figure out where a coolant leak is coming from on my 01 Buick Century 3. I have a 2001 Chevy Malibu V6 engine. Most people call it the dexcool gasket leak. Top 5 Best Head Gasket Sealer 2019 Reviews 1. Has a late model Chevy truck. With enhanced reliability and cooling efficiency this 1955-1959 GM 3100 Series radiator is a perfect upgrade to the stock radiator causing your truck problems. Edited May 19, 2013 by j-ten-ner. How to Find and Fix Leaking Radiators on Trucks A truck radiator leak repair can be a very tricky job. 1995- 2004, 3800 Intake Manifold Coolant Leak Cheap Fix! V6 Engine (VIN K - RPO L36) 3800 Series II w/ Plastic Intake Manifold IF your problem is coolant going directly into the engine, by ANY the indicators below. GM's 3100 and. GM has had a few engines with a few problems with dexcool. Now, I'm leaking water and coolant like crazy. The engine coolant temperature (ECT) sensor test is simple and can help you fix your car faster. Hopefully the leak is only external because if engine coolant leaks internally it will. 2002 w/ 3100 - losing coolant, and lots of sludge we have several threads on doing an LIM job on the GM 3100 60 degree engine. The hot coolant. And I used to be a Chevy guy through and through. 3800 Series II Coolant Leak Resolution on wondering if the engineers at GM forgot that engines get hot when they The 3100/3400 V6 engines are even worst and. If no leak is found the next step is to replace the spark plugs. I'm leaking oil and coolant. If your vehicle's engine has been running too hot, overheating, or running too cold it could mean there is a leak in the system or one of the components of the system has failed to function. GM Coolant and/or oil leaks. I recently bought a 2003 chevy v6 vortec blazer. 1-liter engine has a notorious weakness, a failure mode that GM will not cover after the warranty expires. I'm Daniel, aka Duke George V, and this is my Let's Play of GM 3100 Head Gasket Job! This is going to be a blind playthrough, so it'll be just as exciting for me as it is for you! GM 3100? Why that version? Well, that's what the car came with! This is a 1996 Buick Century, and your choices were a 110 hp 2. Photos of machine service and assembly. Coolant leak from belt tensioner area on 3100 sfi v6 automatic (1998 pontiac grand prix) My girlfriend's car, 98 pontiac grand prix 3100, didn't have heat and went overheated. Engine coolant circulates through your engine to keep it cool in the summer but won't freeze in the winter. The leak allows additional air to mix with the fuel-air mix, causing the engine to run lean. Coolant Leaks On The GM 3100 (3. Both the 3. 1 and 3100 and Other W Body. 4L GM but it should also help you repair a 3. Injectors leaking externally due to a cracked body must be replaced. 0L version of the 3. On disassembly, check for cracks and cylinder head warping. Intake manifold gaskets leak at the corners. GM 3100 - 3400 Engine With Intake Manifold Removed Surprize ! GM 3100 - 3400 engine issues are still happening and are being repeated. gm made platic gaskets on these motors and when i took my engine. Visit us in Las Vegas today for all of your oil change, tire rotation, and vehicle maintenance needs. Coolant leaks: When to fix it or just live with it. For older vehicles or vehicles using aftermarket coolants, use our best-selling TP-3900 universal formula. The inlet and outlet provide precise leak-free connections. So i came outside after work and discovered a coolant leak under the truck. 4 Engine Misfire Cause. gm made platic gaskets on these motors and when i took my engine. And when going to change the oil I noticed I was leaking coolant. If it's the IAC coolant connections you can probably see it visually leaking while revving the engine by hand at the throttle body, but your engine would be a sloshing puddle on top for it to leak like your videos show. Welcome to GMForum. Three problems related to coolant leaking have been reported for the 2003 Chevrolet Impala. Gaskets are the bane of most complex vehicles, but that doesn't mean that every time the coolant is leaking from the Chevy 3. Coolant reservoir max line is for a hot engine, if filled to max cold the engine will push the excess coolant out when hot. 0 liter GM engines often leak at the rear main seal area. If you see bubbles in your cooling system it means compression is mixing with your antifreeze. The plastic coolant elbows on the front of the 3800 motors crack and leak, as do the plastic intake manifold gaskets. Replacing intake manifold gasket on a 3100. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. I had a '97 Grand Prix with the 3100. We still have leaks, installation problems as well as cylinder head and rocker bolt issues. That’s because most people are still confused about the GM 3100 – 3400 engine issues. 4 Engine Misfire Cause. Coolant leaks. Wherever there is a leak in your radiator you will now have coolant + liquid egg whites flowing through the leak. Just a heads up - you'll need to replace an o-ring when you install the new thermostat as well. 5 gal of coolant which is much more than it's taken before. 8 motor the intake gasket is leaking. It’s easy to do with our great selection of replacement engine cooling parts. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Impala based on all problems reported for the 2003 Impala. Another situation I encountered very similar to yours was caused by a bad radiator. I have a 2001 Chevy Malibu V6 engine. WSDT runinoutofgas Feature Winner. Watch this free video to see how to fix minor coolant (antifreeze) leaks in a 2004 Buick Century Custom 3. Three problems related to coolant leaking have been reported for the 2003 Chevrolet Impala. Be Coolant Super Duty Antifreeze, 1-Gallon Container $30. I was told it could either be a hose or maybe the frost plug. I' getting ready to change the intake gasket on my daughter's Buick with the 3100 V6. Radiator, water pump, hoses etc. Gaskets are the bane of most complex vehicles, but that doesn't mean that every time the coolant is leaking from the Chevy 3. All of these engines are 12-valve cam-in-block or overhead valve engines, except for the LQ1; which uses 24 valves driven by dual overhead cams. Then check to make sure that you don't have a leak from the water passage to a cylinder. The problem can also be a leaking coolant bypass tube, and this video will show you how to diagnose and fix that problem. In this tutorial, we learn how to change the engine oil in a Chevy truck. 8 engine is so common for but thats not to say its impossible that this wouldnt be the problem. Many newer vehicles have coolant or "antifreeze" that the manufacturers claim doesn't need to be changed for as many as 10 years or 100,000 miles. The GM water pumps do not have a weep hole anymore. The thermostat provides control for your engine's warm-up period. Noisy Valve Train. If an inspection of the dipstick shows the oil to be bubbly, watery or chocolate milk-like in appearance, the engine is indeed showing symptoms of a blown head gasket, the likes of which could be due for emergency maintenance. 2L four, or a 160 hp 3100. One of the most neglected areas of vehicle maintenance is the cooling system. Visit us today for more information!!. An external oil or coolant leak at the seam between the engine block and cylinder head is a sign that you have a head gasket failure or a cracked block. Where exactly is the water pump on a 1998 3rd gen? 2. Abnormal Coolant Consumption or Leaks in GM 3800 Series II Engines Some installers may comment on excessive engine coolant consumption, or an engine coolant leak near or under the throttle body area of the upper intake manifold on 1995-1999 GM 3. The coolant leaking from below the exhaust flag can also be a red flag, and bubbles may form in the radiator or cooler overflow tank. The most recently reported issues are listed below. WSDT runinoutofgas Feature Winner. Coolant leaks. Do The GM 3800 Series II only leak antifreeze if you use Dexcool, will it still break with the green stuff? I use the green stuff in all 3 of my 3800's and 3100. phone: 760-749-3488 (best option) E-mail can take up to one week for a response. Malibu or GM 3. If your classic 3100 series truck is overheating, look no further. I am fixing a 2002 Chevy Malibu. i have a 2001 chevy malibu with the 3100 engine with 220,000 miles. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Tracerline sells for me with little explaining. not to sure about this as far as the trucks gobut if you google the gm 3100 series engines like i have in my monte carlo you will see a ton of responsesThat dex cool SH*T ate through my intake manifold gaskets. But they will leak from behind the pump where the bearings are. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. I just drove it about 250 miles today to get home from college for a 3 day weekend. Chevrolet Malibu Engine Problems. If a Chevy has gear-shift issues, there is a good chance the transmission is faulty. take your lower intake manifold off and look at the gasket toward the rear and see if it looks mishapen and kinda melted looking around the rear cooling ports. 4-liter dexcool gasket leak problems GM 3. 1L GM as well. General Motors makes Chevrolet cars and trucks. Visit us today for more information!!. Carter himself to discuss the issues at hand. 3L V8 Extended Cab Pickup (4 Door). now, i have a coolant leak which is causing the car to overheat in 15 mins. Before the automated systems in vehicles, this was the sole purpose of the choke. You can usually find the vacuum leak by ear. Are you looking for wiring products for your current or future project? Look no further we're here to help. Average repair cost is $820 at 75,050 miles. Smoke on startup is probably valve guide seals leaking. The lower intake manifold gasket fails and leaks coolant into the engine oil. The most recently reported issues are listed below. Coolant was present in the oil of my friend's 2003 3. GM 3100-3400-3800 and W body car pattern failures GM cars of W body type have been around for YEARS! and are EXTREMELY common in the US and in Canada, Buick Century, Buick Regal, Buick Lacrosse, Chevy impala, Chevy Malibu, Chevy montie carlo, Pontiac grand am, Pontiac Grand Prix, Oldsmobile Alero, Oldsmobile Cutlass are just a few too name that used this "structural" body style and shared. An not really tell. If it's the IAC coolant connections you can probably see it visually leaking while revving the engine by hand at the throttle body, but your engine would be a sloshing puddle on top for it to leak like your videos show. Now, I'm leaking water and coolant like crazy. If an inspection of the dipstick shows the oil to be bubbly, watery or chocolate milk-like in appearance, the engine is indeed showing symptoms of a blown head gasket, the likes of which could be due for emergency maintenance. The 3100 does NOT have a timing belt, only a timing chain (as it's Overhead Valve, or OHV). Until I switched to synthetic oil, I dont think I ever made it past 3100 hours on an oil change, but I know my wife did. It's a faulty gasket design that'll happen regardless of which coolant is in the engine. I've had a couple tire blow outs. Steel Seal can be used in all types of vehicles and engines with a water cooling system regardless of whether your vehicle is gasoline or diesel. The upgraded gaskets are not a factory part for the 3100/3400, but they are for the 3800. Persistent coolant loss may be the only outward symptom Often General Motors vehicles, with the 5. Check out how we install a 5. I finally come online to the community to ask for your expertise in helping track down the source of a vexing engine coolant leak that has been a thorn in my side for a month and a half. You can follow any responses to this entry through the RSS 2. They also include a coolant temp fan switch in the tank. Most experts agree that the problem stems from GM's "DexCool" coolant, which reacts with the intake manifold gasket, causing it to leak coolant. Aluminum radiators and heater cores leak not only from electrolysis but also degradation of the corrosive inhibitors in the coolant or improper ratios of coolant to distilled water. 1995-2004 —The following GM service bulletins confirm a pattern of engine intake manifold gasaket defects, which are sometimes covered by a 6­ year/100,000 km secret warranty. Gaskets are the bane of most complex vehicles, but that doesn't mean that every time the coolant is leaking from the Chevy 3. I have a 1943 Chevy with 216. Can You Drive with a Blown Head Gasket?. It is mounted on the end tank of the radiator itself, not on the recovery tank. I have had a coolant leak for about 2 years or so. The lower intake manifold gasket fails and leaks coolant into the engine oil. 1 L engine 3100 series common problems. I just found out that GM settled this DexCool lawsuit back in 2008 way before I bought this car. Search Car Torque Specifications by Engine or Model. Its been fine for 7 or 8 years, maybe 40,000 miles, and i haven't changed anything but shocks since then. Replacing the intake manifold gasket should correct these leaks. The hot coolant. Chevy GM 216 Engine Rebuild. This problem has been a gold mine for GM and the auto repair industry. The series was introduced in 2004 with the Cadillac CTS and the Holden Commodore (VZ). See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. Per memory the Chevy Lumina uses the 3. I've had a couple tire blow outs. on it to stop an intake leak. If you are able to get a light in there anywhere near the water pump. Vehicle for demonstration is a 1996 Chevy Lumina Works for any Buick, GM, Oldsmobile, or Pontiac with the 3. Engineered using the latest technologies and global engineering resources, the. Just recently it started running hot. The TSB that was posted is great information. You can follow any responses to this entry through the RSS 2. The leakage is either from the front of the engine or at the left side. I finally come online to the community to ask for your expertise in helping track down the source of a vexing engine coolant leak that has been a thorn in my side for a month and a half. The best part is, our Chevrolet Spark Coolant Reservoir products start from as little as $54. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. However, at the same time a lesser known "big brother" to this base engine was being used. Visit us in Las Vegas today for all of your oil change, tire rotation, and vehicle maintenance needs. Some may have broken loose from the heater core (if there is one) and moving around in the system, or maybe some dislodged from the radiator. Where GM engines do excel is coolant leaks, however. Defective castings of engine blocks and these covers, often result in major oil leaks. If it's the IAC coolant connections you can probably see it visually leaking while revving the engine by hand at the throttle body, but your engine would be a sloshing puddle on top for it to leak like your videos show. Welcome to Langdon's Stovebolt Engine Parts Co. NHTSA — Engine And Engine Cooling Problems. What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. 1999 Chevy Malibu Low Coolant Light Flickering I had just put in a brand new radiator on my 1999 Malibu, and the coolant low light will not turn off, the coolant should be full up, but the light doesn't turn off and the car stays at a even temperature just a hair above the mid point. Then once I rev the engine a little bit the car starts to move towrds the red so I shut it off. With the Northstar, without the addition of the little sealant pucks in the cooling system, coolant can literally weep from the pores in the block. This entry was posted on Thursday, February 11th, 2010 at 11:40 am and is filed under Technical Articles [unsorted]. 4 million cars with its 3800 model V6 engines. 4L) (at: autotecnico-online. 4L and very similar 3. Unless it's an overhead cam, a head gasket won't be the issue. Also the fuel rail has a leak. Adding engine coolant (also known as antifreeze) to your 1999 Buick Century is pretty easy. The TSB that was posted is great information. All gm's V6's had problems with the intake to heads gasket ? a chunk of plastic with rubber donuts built in,, 2. These vehicles, however, are usually equipped with plastic manifold gaskets which tend to fail sooner than other gaskets. The intake manifold gasket may develop and external engine oil or coolant leak. Gm Performance - $4,051. I had to get head and intake gaskets done on my 1999 Malibu and it had a slight coolant issue from as early as 22,000 miles, gunge in the bottom of the tank and a slow steady loss. I finally come online to the community to ask for your expertise in helping track down the source of a vexing engine coolant leak that has been a thorn in my side for a month and a half. 8's, 3100, 3400 and the 3. The shop said that this was a common problem with my engine (3100 V6). Loss of coolant no visible leak, coolant is seeping into heads due to faulty castech heads used by gm in the manufacturing of these trucks. 0 ford the coolant is now run 3/4 of an inch below minimum, per Fords revised spec, cold and does not lose coolant. Location diagram of freeze plugs for a v6 pontiac 3100 3. I need to find an oil that can withstand some antifreeze dilution for a while until I can find a new motor for the car. I believe for the 60 degree motor Fel-Pro makes an aluminum gasket kit. 3L V8 Extended Cab Pickup (4 Door). Just recently it started running hot. Leaking Coolant in Malibu I am from the state of NC. Noisy Valve Lifters!?!?!? a. I used this on my 2013 1. 8 motor the intake gasket is leaking. How to Find and Fix Leaking Radiators on Trucks A truck radiator leak repair can be a very tricky job. 1 engine doesnt have any plastic coolant fittings that tend to leak like the 3. The throttle body heater is required any time and any where the temperature could go below freezingnot just in places of extreme cold. Gaskets are the bane of most complex vehicles, but that doesn't mean that every time the coolant is leaking from the Chevy 3. If you see bubbles in your cooling system it means compression is mixing with your antifreeze. The complaints you're likely to get irom customers can vary from oily spots on the driveway to continually having to top. A bad engine coolant temperature sensor affects engine performance: It may cause a constant lean air/fuel mixture, causing the. I'm leaking oil and coolant. General Motors 3. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. 1 is not a favorite of mechanics and was not always the most reliable offering from GM. Coolant and water mixed boils at 250-260 degrees. Our kits are extremely flexible and our installation schematics are second to none. Cylinder misfire is another sign of head gasket failure, especially if the breach is between two cylinders on the same head. 4 Engine Misfire Cause. Before the automated systems in vehicles, this was the sole purpose of the choke. 8L V6 - VINS [K & 1] 1998 Pontiac Bonneville 1998-99 ENGINES 3. Replacing intake manifold gasket on a 3100. GM recalled 1. Vehicle for demonstration is a 1996 Chevy Lumina Works for any Buick, GM, Oldsmobile, or Pontiac with the 3. Coolant Temp Sensor GM 3100 V6 95 Olds Cutlass Supreme (self. Because of the way the engine is placed, it's actually more cost effective to just keep putting oil in it than spending $800+ to get it fixed. You can add a dye to the coolant and use a black light to aide in finding leaks. Definitely no sign of coolant in the oil. LMC Truck has 1950 Chevy 3100 Truck Parts in stock. To see how frequently Chevrolet Impala problems occur, check out our car reliability stats. The radiator drain petcock is the valve that helps you drain the coolant when you need to change it or work on it. I had to get head and intake gaskets done on my 1999 Malibu and it had a slight coolant issue from as early as 22,000 miles, gunge in the bottom of the tank and a slow steady loss. Cause Intake manifold may be leaking allowing coolant, oil or both to leak from the engine. Photos of machine service and assembly. Even if currently you only observe seepage of motor oil into the cooling system, the problem could easily morph into the more serious scenario of coolant getting into the crankcase. the 3800 is widely hailed by professional mechanics as "bulletproof. Engine coolant circulates through your engine to keep it cool in the summer but won't freeze in the winter. Fix one and another would leak, fix it and another would leak. GM Performance Engine Long Block The GM Performance engine long block can be the most reliable low-priced solution for fixing a vehicle and keeping it running perfectly. I'm leaking oil and coolant. well if you didnt blow a head gasket, then you blew the intake gasket which is a very common occurance in the 4. 4 is leaking below the thermostat housing but I checked the upper rad hose and it feels warm once the engine warms up. Radiator Cooling. It means a very small leak has been detected. We can guess on the forum all day about this but unless you put your eyes on the problem for yourself you'll never know the answer. 8L V6 GM Bonneville, Camaro, Eighty Eight, Firebird, Grand Prix, Intrigue, LeSabre, Lumina, Monte Carlo, LSS, Park Avenue, Regal, Regency, Riviera MODEL IDENTIFICATION MODEL IDENTIFICATION - CARS Body Code (1) Model. Visit us in Las Vegas today for all of your oil change, tire rotation, and vehicle maintenance needs. GM 3100 - 3400 Engine With Intake Manifold Removed Surprize ! GM 3100 – 3400 engine issues are still happening and are being repeated. Per memory the Chevy Lumina uses the 3. All of these engines are 12-valve cam-in-block or overhead valve engines, except for the LQ1; which uses 24 valves driven by dual overhead cams. This problem has been a gold mine for GM and the auto repair industry. GM 3100-3400-3800 and W body car pattern failures GM cars of W body type have been around for YEARS! and are EXTREMELY common in the US and in Canada, Buick Century, Buick Regal, Buick Lacrosse, Chevy impala, Chevy Malibu, Chevy montie carlo, Pontiac grand am, Pontiac Grand Prix, Oldsmobile Alero, Oldsmobile Cutlass are just a few too name that used this "structural" body style and shared. I recommend calling unless you are outside the U. Most people call it the dexcool gasket leak. But anyway, a little higher temp in stop and go traffic is normal. Definitely no sign of coolant in the oil. Defective castings of engine blocks and these covers, often result in major oil leaks. I actually spent an additional 40 minutes trying to figure out how to drain out the coolant if that tells you anything. A head gasket leaking coolant into a cylinder can foul the spark plug and create a lot of white smoke out the exhaust. The best part is, our Chevrolet S10 Coolant Reservoir Cap products start from as little as $3. I was told it could either be a hose or maybe the frost plug. The General Motors 60° V6 engine family was a series of 60° V6 engines which were produced for both longitudinal and transverse applications. One particular truck had been serviced at a local new car dealership 3 times. A leak in the intake manifold gasket can lead to coolant running down the sides of a vehicle's engine. Is there anyway it might be something other than the water pump? 3. Check thoroughly for external coolant leaks. The Chevy 3. Chevy GM 216 Engine Rebuild. Replace the thermostat on your GM 3100 or 3400 vehicle with this nifty tutorial. 1, I got the removal portion done in about 5 hours following these instructions. 2 – Engine Might have a Head Gasket leaking Coolant. i have a 2001 chevy malibu with the 3100 engine with 220,000 miles. Carter himself to discuss the issues at hand. Coolant leak from belt tensioner area on 3100 sfi v6 automatic (1998 pontiac grand prix) My girlfriend's car, 98 pontiac grand prix 3100, didn't have heat and went overheated. It is an easy do it yourself product. To see how frequently Chevrolet Impala problems occur, check out our car reliability stats. 2L four, or a 160 hp 3100. Intake manifold gaskets leak at the corners. comment on an apparent oil or. But anyway, a little higher temp in stop and go traffic is normal. The engine coolant temperature (ECT) sensor test is simple and can help you fix your car faster. Most people call it the dexcool gasket leak. It is mounted on the end tank of the radiator itself, not on the recovery tank.