how do ifind out why i have no oil pressure??
5

Asked by BOBBIZ Apr 18, 2016 at 02:09 PM about the 1988 GMC Jimmy 2 Dr STD 4WD SUV

Question type: Maintenance & Repair

Is it timing chain?oil related electrical parts?1988 gmc jimmy 4x4 350
automatic?

2 Answers
70,085

Kelly answered 8 years ago

take the oil sending unit out and start for 2 seconds...did it make a mess?? and or remove vale cover start and check for oil flow at the valve rocker arm.

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BOBBIZ answered 8 years ago

THAN KELLY.ALSO,I RESEARCHED AND FOUND IF YOU HAVE A NEEDLE OIL PRESSURE GAUGE,DISCONNECT WIRE,turn on key and if needle pegs out either way ,ITS THE OIL SENDING UNIT.THANKS AGAIN FOR YOUR HELP.

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