Just not getting any preasure in front right cylinder could it be a blown head gasket? 1994 gmc Jimmy
It’s very possible that reduced pressure from a cylinder is an indication of a blown head gasket. In most cases, this problem is caused by damaged piston rings or a hole in the piston, but a blown head gasket could also be the cause of this problem. If you’ve recently had an overheating problem, then I’d lean toward the gasket.
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