Question about 1997 Oldsmobile Eighty Eight

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Intake is leaking coolant - 1997 Oldsmobile Eighty Eight

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What size motor and were is the leak? Is it at the back or front of intake were it meets the cylinder head?

Posted on Aug 30, 2010

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What are the symptoms of a bad intake gasket on a 1999 buick century?


Coolant leaks,When the intake manifold gasket cracks or blows out, coolant will leak out of the intake manifold. You may see puddles underneath your car or notice smoke or steam coming off of the engine and exhaust from the coolant dripping onto it and then burning.Overheating, If the intake manifold gasket fails and allows coolant to leak out into the engine, your car will begin to overheat. If your car frequently runs low on coolant or begins to overheat, check the intake manifold gasket.Running poorly, When the intake manifold gasket falters, it affects the way the motor handles its emission gases. The change in pressure can affect the vacuum in the intake as well as how smoothly your car runs. Mainly, it will idle roughly and may hesitate, cough or sputter.

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These motors are famous for the intake manifolds leaking coolant.Have a pressure test put on the coolant system and look for a leak around the intake manifold corners.Check all four corners i've fixed many of these.

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Well i did the batt and the alt to now i have a los of coolant and now i have water form the tail pipe what is it


not a complete history in your brief 'sentence', but water from the exhaust is either condensation whick is normal, or you have a blown head gasket or worse (cracked head or block) which is going to be very expensive to fix. If it is not overheating too, you have nothing to worry about, if it is you need to get the car to someone who can do a compression test and cylinder and/or coolant leakdown test to determine the extent of the damage.

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Lossing antifreeze but no puddles we think its the antifreeze intake gasget?


if no puddles or no keaks you can see, then its probably your head gaskets, or the intake gaskets leaking. look all around intake to see if you see any leaks. if you do its your intake gaskets. how does the coolant look! on my car when the intake gasket was leaking, it made the coolant look milky and a chocolate type mixture. so check it out first, the intake gasket. Coolant may flow through the gasket to the inside of the engine and mix with the oil. Pull the oil dipstick out and look at it. Oil mixed with coolant will have a thick consistency. Examine the oil filter cap for any rusty-looking residue. good-luck.

Feb 14, 2011 | 2000 Pontiac Grand Am GT

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Leaking coolant somewhere below after car is warm and shut off can not find,recently replaced water pump, and it is not the radiator


Does this vehicle have a 3.1 or 3.4L motor. If so they commonly have intake manifold gaskets failures. This leads to coolant leaking, usually at the corners of the intake manifold and in some instances leaking into the oil. Look for signs of coolant leaking at the corners of the intake manifold and check the engine oil for coolant.

Sep 05, 2010 | 1997 Chevrolet Monte Carlo

1 Answer

Can a bad intake plenum leak antifreeze into the engine on a 2002 century 3.1?The computer code was misfire #1 cylinder. Complete tune-up done, same problem, new#1 injector, same problem. Now the coolant...


I see a lot of lower intake gasket leaks on these but usually you get an external leak or you'll find coolant mixed with the oil, not a misfire. Upper plenum is dry on the 3.1 and just bolts onto the top of the lower intake. We usually apply pressure to the cooling system overnight with the spark plug removed from the misfiring cylinder. If there is coolant in the cylinder come morning then you only have to figure out where it is coming from. If the plenum is removed during the test you might be able to see where the coolant is or isn't coming from with a borescope by looking down the intake runner.

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What are signs of of bad intake gauset on a 99 chevy blazer


depends on whether its leaking coolant or air, since both run through intake. if leaking coolant, you will see coolant leaking from either the front or rear of the intake itself. it can also leak into the engine, causing coolant to mix with the oil. if its leaking air, usually a small leak will present more when the engine is cold, with rough running or high idle. a large leak will run rough all the time, but should be able to hear air hissing if large enough. a vacuum leak from the intake will sometimes present as a check engine light, with codes p0171 and/or p0172, depending on whether the leak is on one side or both.

Feb 20, 2010 | 1999 Chevrolet Blazer

1 Answer

Coolant fluid leaking below carberator 1989 dodge daytona


May not apply to yours, but I have seen coolant lines routed under intake (actually through plenum below carb)...the idea is to pre-heat and vaporize fuel to prevent "puddling" under carb. If you look at most v8 engines, exhaust is routed the same way, to do the same job. You may need to use a mirror to see under there to determine exactly what's going thats causing leak.

Apr 05, 2009 | 1989 Dodge Daytona

2 Answers

Leaking coolant


sounds like intake or water pump

Mar 09, 2009 | 1999 Pontiac Grand Prix

2 Answers

Oil in over coolant tank


If there is oil inside the coolant liquid that is the head gasket.

Check first if oil can leak into the coolant tank from the cap.

Usually when you get oil into the coolant liquid you have an head gasket problem, do a compression test, or buy the home tester below.

eBay.co.uk Guides - HOW TO TEST FOR A FAILED HEAD GASKET
Head Gasket or Combustion Leak Test Procedure (Gasoline Engines Only)
Blown Head Gasket? how to check

Feb 17, 2009 | 1996 Chevrolet Monte Carlo

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