2006 Chevy Trailblazer L4.2 3, 4WD. When cold start oil pressure 45 @600 RPM. After running (hot) oil pressure drops to 0, increase idle to aprox 1,000 RPM oil pressure returns to normal??

Asked by Nov 11, 2015 at 01:48 PM about the 2006 Chevrolet TrailBlazer LT 4WD

Question type: Maintenance & Repair

1 Answer

27,505

first thing to try is to change the oil and filter..go up in weight 5- 10.... also weak /bad gauge or sending unit...after that the bearings......

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