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Engine coolant leaking internally and/or externally.

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Q: What are tesigns of cracked intake gasket on a 3.8 engne 2000 Chevy Impala?
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What makes milky substance in the valve cover would it be head gasket or intake?

Any internal coolant leak can cause a milky residue in the valve cover. Head gasket, intake gasket, cracked/warped head, cracked intake are possible causes.


2002 impala intake gasket repair?

Repairing intake gasket not preferred, you can use red silicone to seal it, but to do so, you must remove the intake, in which case, you may as well replace the gasket.


Have a 1988 Chevy impala with a 305 burning coolant what could be the cause?

a bad head gasket or intake manifold gasket.


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arm & a leg


Could installing the intake gasket without silicon have caused a cracked head?

no. you might have ran it hotand cracked it that way.


What causes Water in pistons Mazda 323?

A cracked/warped head, Blown head gasket, cracked cylinder wall, or cracked/warped intake manifold.


Water in the oil of a Chevy 350 marine engine means what?

intake manifold gasket,head gasket,cracked head,cracked block. was it overheated? was cold water added to hot engine?


What causes oil in the intake on a 5.0fi in a 1995 f-150?

you have a broken head gasket or cracked head.


Why would antifreeze leak from intake?

I had that happen once. That's a bad thing. That's either cracked head, blown head gasket, or cracked block.Not necessarily. The intake on some vehicles, especially late models, the coolant circulates thru the intake manifold. You could have a leaking hose or leaking manifold gasket. You would have other problems like cooant in the oil or oil in the coolant if you had a cracked head/block or a bad head gasket.


What causes coolant in oil of a series 60 dietroit diesel?

Let's see...cracked head, cracked head gasket, cracked intake gasket, bad cylinder liner or cracked block, air compressor head gasket...if this was a Cat 3116 I'd also look at the oil cooler or an injector sleeve, but it's not so that's probably not it.


What causes antifreeze on spark-plugs?

Blown head gasket, cracked head, failed intake manifold, etc


1999 silverado overheating coolant in oil is this most likely blown head gasket or cracked head?

Neither 1, It is a common problem with that engine for the intake gasket to leak engine coolant into the engine lifter gallery / into engine oil. Replace intake manifold gasket and change oil and FILTER a couple of times. A head gasket or cracked head will not allow engine coolant to get into the oil. If you got or over HEATED the engine like real hot then you may have blown are cracked a head but I doute it. Not common, Replace intake gasket and you'll see that the engine will be okay more then likely.