No oil pressure at startup

Asked by Mar 03, 2016 at 07:25 PM about the 1997 Buick Regal 4 Dr LS Sedan

Question type: Maintenance & Repair

Oil pressure light remains on for up to 60 seconds
when starting the car.  Once light goes off it stays
off until shutting off.  Let the car sit for 2 minutes
and it will take from 3 to 8 seconds for oil pressure
light to turn off.

5 Answers

37,955

Has the oil ben changed? There must be a lot of miles on the motor also. Either verify oil pressure with a mechanical gauge, and try replacing the oil pressure sending unit. May be worn out.

The oil was changed 600 miles ago and 4200 miles ago. Both times using Valvoline max life. There is only 117,000 miles on the car.

37,955

What weight oil are you using? Should be 10W30W

It is indeed 10W30. There is ticking/clatter on the top side of the motor for a couple of minutes when first starting the car but goes away.

37,955

Well like I said, should verify the oil pressure, and try replacing the oil pressure sending unit. If the oil pressure is low, then there is wear in the crankshaft, and rod bearings.

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