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Noticed last night the oil pressure gauge was indicating zero at RPM around 1500 to 2000 for a moment; then it jumped back up (fast enough to bounce the needle) to normal range. Checked oil level and ok.
What are the chances of a real pressure drop,
versus the gauge or sender being bad?
I suppose if it is cheap to replace the gauge and sender, I should do that for verification...
Location: Dove le cose sono fatte il vecchio moda il senso
Mine jumps up at start to over 100 lbs, then goes down to about 20-30 lbs. after a 5 minute warmup. Then stays at 0 to 20 lbs all day long. I understand that cleaning the sender unit will improve accuracy a bunch.
Don't get a new sender - Replace the Gauge with an aftermarket one - even a >$45 AutoMeter is MUCH better than the stock unit (goes for the stock Water Temp gauge too) - I have mounted my AutoMeter mechanical Boost & Oil Pressure gauges on the A pillar and am working on replacing the stock water temp & oil press gauges w/ aftermarket Oil Temp & Water Temp Gauges. (in the stock locations)