LOW OIL PRESSURE

1999 Chevrolet Truck

Tiny

ccommet

June, 29, 2011 AT 2:27 PM

I have a 1999 chev 2500 with a 7.4L 454. When I start it cold has about 275kpa oil pressure, and as it gets to operating temp it drops to zero at an idle, and is a little under 137kpa with rpm. I'm wondering what the problem is? The truck has 314000km on it.

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