I have a 73 GMC truck with a 454. High miles. Oil pressure drops to 0 then bounces back up at 60 mph any ideas on the problem?

Asked by Feb 05, 2018 at 06:52 PM

Question type: Maintenance & Repair

2 Answers

120,775

I'd put a manual gauge on it first to see if the oil pressure is actually dropping out. It could be just a bad sender or an intermittent open in the gauge wiring.

1 people found this helpful.
37,855

Ditto on the mechanical gauge.

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