P0442 gmc sierra silverado Ecm plug P0523 code have a loose pin on ecm plug i think its the oil pressure switch
chevy no oil pressure p0523 p0521 2007-2014 tahoe escalade silverado
Code p0442 small leak purge solenoid???
Chevy 2007 escalade tahoe silverado engine
Chevy no oil pressure p0523 p0521 2007-2014 tahoe escalade silveradoP0523 code have a loose pin on ecm plug i think its the oil pressure switch .
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