Quote:
Originally Posted by billnorman
Lots of bubbles in the coolant sounds like a headgasket or cracked head or block. Water in the tailpipe is normal when first started but not after it has been running for a while. Check the oil, if it's creamy, you have a real problem. I'm not sure, but if your intake manifold leaks you could also get water inside the cylinders. If a compression test shows low one one or two ajacent cylinders you probably need a head gasket and need the heads checked for warping.
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How can I tell if it's a cracked head or block? I'd hate to fix the head gasket(s) only to find out later that there's a crack.