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02 chevy tahoe 5.3 engine has a head gasket leaking coolant out the front of the passenger head. this vehicle has 120,000 miles.is this common on this engine

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I am very familiar with this engine and its problems, and this problem is not common, these engines go well over 150,000 miles with no problems of any kind, not even a water pump replacement.

Posted on May 11, 2010

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Have a coolant leak on top of engine between head and intake on the front passenger side of a 2002 chevy s10 v6 engine code w


It looks like the intake manifold gasket have to be change.But to be sure. pour dye in coolant and see with black light where exactly is the leak.

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1995 300zx oil consumption


If it's not leaking from the engine, and it's not being burned (blue smoke out the tailpipe), the only other place for it to go would be into the coolant system, but that would only happen with a bad head or head gasket. Do you have an overabundance of coolant?

Jul 14, 2013 | Cars & Trucks

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94 4.3 chevy using water but no water in oil


if its not leaking it externally try a hydrocarbon test. you can buy the tester at auto parts stores. most common external leak points are lower intake gaskets, coolant hose that goes into lower intake on passenger front side of engine behind alternator. the hydrocarbon test will see if exhaust gases are entering the cooling system via a blown head gasket which is also a common problem on the 4.3 litre

Feb 18, 2013 | 1994 Chevrolet C1500

2 Answers

I have a 02 Chevy tahoe....it sounds like coolant rushing throughout the engine while sitting at an idle and about every 2 or 3 days I gotta add coolant its not much also the low coolant light comes on...


I would perform a coolant pressure test because these engines are known for leaking intake manifold gaskets.Check and see if your oil is starting to turn a creamy tan color.

Jan 24, 2012 | 2002 Chevrolet Tahoe

2 Answers

My Chevy Venture 1999 when I drived the temperature was normally, but when I stay the temperature was hot. I changed the termosthator but the problem is continually.


Check the coolant reservoir and the radiator for proper coolant level. If low you probably have a leaking intake gasket or possibly a head gasket leak. The intake leak will be visible on either end of the intake manifold, located at the very top portion of the engine. The head gasket usually shows up at the rear head, nearest the belt. You could have a water pump leaking and this would show coolant on the ground under the right front of the engine, more so when the engine is running. They are very common for all 3 problems.

Mar 02, 2011 | 1999 Chevrolet Venture

3 Answers

1999 tahoe has water mixed with engine oil.RBM starts to decrease. what should i do ?why water mix with oil? in the future ,what are the consequences?


Get that fixed ASAP, Water in the oil will destroy the bearings. The intake manifold gaskets may be bad, leaking water into the engine. Have a repair shop check it out and recommend repairs. Do not put this off, unless you want a new car.

Nov 04, 2009 | 1999 Chevrolet Tahoe

2 Answers

Little plume of white smoke coming from engine when idling only. Runs great and not overheating. Really bad smell coming through vents with AC on


A little white smoke is OK from 0-15 minutes of start up.

After warm up the condensation inside the exhaust pipe AND under the hood should be purged.

How many mile is on the engine?

A well care for engine should not have to worry about leaky (pin hole leak) head gasket until 120,000 miles.

The other sources of coolant leak is the freeze plugs.

DO NOT WAIT! Take 15-20 minutes out of your schedule and see where is it leaking on the idle.

it can be at


heater hoses
water pump
freeze plugs
and head gasket


I would start monitoring the coolant consumption by making the coolant reservoir tank.

Keep tab on oil level.

====

The common A/C air vent odor are

coolant leak (even pin hole leak) on the heater core.

KEEP CHECKING the center to passenger floor carpet for wetness and smell of coolant.

and/or

mold in side the air tube vent.
there is cleaner spray you can buy to keep the mold.


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1 Answer

Coolant leak chevy tahoe 02


If the coolant is in the cab they did not cause the problem changing the manifold gasket. It sounds like the heater core has failed, which is under the dash.

May 28, 2009 | 2002 Chevrolet Tahoe

4 Answers

2001 Chevy Tahoe that leaks antifreeze but is not running hot. I can smell the antifreeze when i drive for a long time but never see it on the ground. i've looked on top and the bottom of the engine and...


It's hard to do, but I bet if you look at the very back of the engine below the distributer you will find a small amount of coolant. It could also show up on the front of the engine just below the thermostat housing. If so, you will need to replace the intake manifold gaskets.

Mar 15, 2009 | 1998 Chevrolet K1500

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