2010 Sierra does not exceed 30 psi except when cold. newer engines require less oil pressure by design and this is within the normal range as long as the idle pressure hot is at least 15 PSI, remember
Question about Chevrolet Silverado
...hot... got out checked to make sure ac belt was on. Shut truck off pulled negative battery able off for 5 min, re connected started up and was fine... I did have weird electrical problems prior to my ...
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