Mechanics

WHATS WRONG

1996 GMC Truck • 2WD Automatic • 16,300 miles

Service engine light came on oil pressure goes up when throttle goes up and then goes back to normal when let off
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Shallon
February 12, 2011.



Check the oil pressure with a mechanical gauge, if normal replace the oil pressure switch. If abnormal could mean oil pump and engine bearing.

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on

Rasmataz
Feb 12, 2011.


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