Question about 1999 Pontiac Grand Prix

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Leaking coolant i have a coolant leak on the right side of the engine .i belive were the tension puley go into the intake it laek ther an run down between the intake and block. but i'm not sure.should i replace intake gasket .

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Water pump leaking or leaking hose

Posted on Mar 17, 2009

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Sounds like intake or water pump

Posted on Mar 09, 2009

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3 Answers

Leaking coolant on rx330


Check and see if head gasket is leaking.

Apr 04, 2013 | 2004 Lexus RX 330

1 Answer

01 durango leakiing coolant nea trans and inside of vehicle


Leaking inside sounds like the heater core. If the core is broke right where the heater hoses connect, it might be losing coolant down both sides of firewall, inside and outside. Otherwise, look for a leak at the intake manifold. That might run down back of engine near the transmission, as you indicated.
Good luck.

Jan 09, 2012 | 2001 Dodge Durango

1 Answer

I am leaking coolant from somewhere. when I run my car, the engine smells like hot coolant. I have checked the oil, and the coolant isn't mixing with the oil. I have read about intake manifold...


First, I am assuming that your vehicle is equipped with the 3.1L V-6 and NOT the 3.8L V-6? (Engine size is really nice to know in situations like this!)

It could be any where in the cooling system. The intake gaskets also like to leak externally. A bad intake gasket does not always mix antifreeze with the oil. Take a flashlight and look for coolant on top and/or down each side of the transmission bell housing. This is VERY common on these engines. It may be leaking just enough to where the exhaust crossover pipe is burning it up (and stinking) before it has a chance to run on the ground. Also look for stains on the intake manifold-to block mating surfaces and on the side of the bell housing that will indicate a leak. if your vehicle is still using Dex-Cool, the stains will be pink. If your coolant has been changed to green antifreeze, the stains will usually be real white or dark green depending on the brand and the severity of the leak.

If there are no leaks or stains in this area, then look around the water pump area for the same things. The radiator or coolant hoses (including heater hoses) could also be leaking. If it is stinking when the engine is hot, then you could get it hot then shut if off and look for steam.

TIP: A bright LED flashlight works really good for locating steam.

Jun 18, 2011 | 2002 Pontiac Grand Prix

2 Answers

COOLANT LEAK ON RIGHT SIDE OF ENGINE WHERE GASKETS ARE. MECHANIC SAYS IT IS AN 'O' RING.


It could very well be, if the engine is the 3.8L. There is a coolant pipe with a 90o angle, going into the front of the intake manifold. It has an "O" ring at the intake and another at the coolant bypass assembly. Quite often the "O" ring gets hard and leaks, or the plastic coolant pipe deteriorates and breaks inside the intake manifold. Either the coolant bypass / tensioner assembly will need to be removed or the intake manifold will have to be removed to replace the pipe.

Apr 13, 2011 | 1996 Oldsmobile Ninety Eight Regency

2 Answers

My car is running out of Anti-freeze rapidly,but there is no visible leak under the car or in the engine


You must have a intake manifold or head gasket problem, check to see if the oil level is high, if so it's most likely a intake gasket. Running a engine with this kind of problem won't last long.

Jan 18, 2011 | Chrysler LeBaron Cars & Trucks

2 Answers

Water coolant leak in back of motor from where?


that would be from a engine block core plug or a leakiong intake gasket

Sep 10, 2010 | 2003 Buick Rendezvous

2 Answers

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

3 Answers

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

2 Answers

Water Pump leakes from steel tube.


when installing new o-ring on tube, lubricate o-ring and stick it in water pump. Then pull pressure back on tube and then tighten hold down clamp. problem solved

Apr 16, 2009 | Dodge Caravan Cars & Trucks

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