Question about 1999 Cadillac DeVille
Compression leak can be caused by a couple of things valves not seating sticky rings. if the car doesn't smoke it's most likely the valves not seating properly. you can get a compression gauge remove a spark plug crank the motor and watch the gauge. this will tell you what cylinder is giving you the trouble. hopefully this helps.
Posted on May 16, 2014
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Posted on Jan 02, 2017
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