Quote:
Originally Posted by BoB393
Does anyone know the first place to look for a coolant leak into the oil.
Any known problems?
I seeing foam on the oil cap and the antifreeze level is going down, and it's getting worse quickly. Nothing is showing up on the ground so we all know what that means. Just looking for some input before I start o tear it down or cheep out and try some barsleak.
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Check water pump. The bleed hole lets water follow back along the block.
Check the plastic elbow from the lower intake manifold to the tensioner pulley bracket for seeping.
Check the hoses and the radiator for leaks.
What is the oil like on the dipstick? Is it a brown milky color? Or are you just seeing condensing on the oil filler cap, which is fairly common in cooler climates?
The throttle body gasket can leak into the air intake. That gets burned but leaves some in the oil.
Lower Intake Gaskets tend to distort and start leaking which gets burned and eventually will stop where an open valve lets it leak into the cylinder and hydrolock your engine.
I'd recommend the APN upper intake with the metal sleeve in the EGR passage.
I'd recommend the GM aluminum-framed lower intake gaskets.
And you'll have to replace the coolant elbows to the tensioners and I'd recommend the new aluminum ones from Dorman instead of the plastic.