I lost oil pressure then replaced the oil pump had 60psi for 2 minutes then 40psi now 15psi what is the cause.
Aug 21, 2009 at 9:21 AM
1997 Chevy Astro oil pressure
1997 CHEVROLET ASTRO
CASTERS1
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The pump doesn't determine the pressure. The bearing clearances do. Is there any knocking sounds from the engine?
Also, did you clean the oil pan when it was off? Make sure the heads are draining oil back to the crank case. If the drains are plugged, they could prevent oil from getting to the pan.
One last thing to try first, make sure the oil sending unit is good.
Also, did you clean the oil pan when it was off? Make sure the heads are draining oil back to the crank case. If the drains are plugged, they could prevent oil from getting to the pan.
One last thing to try first, make sure the oil sending unit is good.
Sep 3, 2009 at 7:35 AM
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