My girlfriend 88 Nova has just over 150,000 miles on a perfectly maintained 1.6L 4 cyl. Carb. Engine (4A-LC). It run well, there are no ticks, knocks, or squeals. The oil light briefly flickers while the car is stopped, in drive, and at an idle. If I switch it into nuetral before I come to complete stop, the idle is high enough to keep the oil sending unit from turning on the oil light. I understand that the oil pressure may be low enough to damage the egine before th light comes on, I just like to keep the light form coming on. I bought a new oil sending unit, but I have neglected to put it in yet, as I no longer believe this to be the problem. I heard that post examination of engines with catastrophic failure due to low pressure, often have fully functioning oil pumps. There are a few questions on this site similar to mine, and the answer was replace the oil pump. My understanding of an oil pump is, it is more of a recirculator/restrictor, rather than a traditional pressure building pump. Also I noticed a dent in the oil pan, the dent is within 1-2 inchs of where I believe the oil pick up screen to be. Do I need a new oil pump if changing the sending unit, oil pan, and inspecting the pick up screen doesn't work? I apologize for my long windedness. Grin. Thank you!
Sunday, February 11th, 2007 AT 6:50 AM