• Tiny
  • shallon
  • 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

Saturday, February 12th, 2011 AT 12:31 AM

1 Answer

  • Tiny
  • rasmataz
  • Member

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

Was this
Saturday, February 12th, 2011 AT 12:40 AM

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