I have a 99 Yukon 4x4 with the 350 and my oil pressure gage occasionally drops to 0 for about a minute then jumps right back to normal and my oil looks fine. What can cause this?

Asked by Jun 04, 2014 at 10:29 PM about the 1999 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

3 Answers

88,955

Sounds like a sender or wiring problem to the gauge unit. do the lifters start to click when the gauge drops to zero? If they do then you have an oil pump getting ready to go.

Didn't hear anything odd, I was thinking the gage cluster but wanted a second opinion

88,955

Check the sender and wiring first, the cluster won't be cheap.

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