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Join Date: Sep 2006
Location: The Bluegrass State
Re: 2001 chevy suburban 5.3 NO OIL PRESS
If you are hearing valve train noise indicating lack or oil pressure, or you have verified with a mechanical gauge, then I would suspect that the oil pump pickup may have fallen off. You could try overfilling the crankcase with a couple extra quarts just to see if it is able to pick that oil up, but I would try to avoid running it.
1967 RS/SS 350 Conv - triple black, 4sp, tach & gauges
1969 VN-built RS/SS 396 Conv - Garnet Red/Black, 4-sp, tach & gauges