Question about 2000 Pontiac Firebird
Without checking the head with a pressure test anything is possible. do a compression check on the cylinders and see if you have high compression on a cylinder. If the head is cracked it will let water into the cylinder and cause high pressure. This is still true with a broken intake manifold gasket as well though depending where it is broken. It is possible that what you are seeing is blow back from the radiator over flow. You don't see any leaks when your stationary but if you drive it and then stop and check it you see the fluid. This could be a result of blow back from a loose radiator cap or bad over flow hose.
Posted on Jul 22, 2010
Testimonial: "Bought the manual a few years ago and I've done upper end rebuilds, but I was going to try to cheat and see if I could and not take off intake, Thx"
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Posted on Jan 02, 2017
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