1997 Chevrolet Lumina Repair Question
Mileage: 250,000 miles.
1st: No oil pressure / 2nd slight amount of oil in cooling system
2nd question: & probably not related to the zero oil pressure, for the past year I have noticed oil in the cooling system, not much but slight. The pan oil is fine (not milky at all) Am perplexed on this matter also?
Answer
1. No oil pressure-if it was verified by using a mechanical gauge-could be the oil pump gave up and engine bearings wiped out
2.Oil in cooling system if its actually oil in it-could be a blown headgasket,cracked head or block and an intake manifold leak-you can pressure test the cooling system and see if it'll hold pressure if not there's a leak somewhere
I dint run the motor for even a minuet after the sudden oil pressure loss...so what the possibility that I didn’t damage the motor & changing the oil pump may take care of the problem? Guess I would just have to find out? But less than a min might not have caused damage?
Dunno the possibilities-you just have to open it up and check the pump clearances and mike out the end bearings-could be clogged pick-up screen/oil galleries, etc hard to say