2002 Pontiac Montana Support Question
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Question posted by LUKSHsora on October 20th, 2013
04 Pontiac Montana Head Gasket Replacement How To Tell Wich Gasket Is Bad
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Answer #1: Posted by gringosalinas on December 1st, 2013 9:49 AM
You will have to do a compression test on each of the cylinders by removing the spark plugs and screwing in a compression testing gauge into each cylinder (one at a time) the readings will be pretty uniform except for one that will be very different that the others. That is you bad cylinder.
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