oil pressure issues

[1991CamaroRS]

ok,

took the car into the mechanic, they checked it out mumbled something abaout a switch, replaced it...(i have a feeling that this did nothing) however...interestingly they checked the oil and it was very dirty, (we got it changed about a month ago) they changed it again and replaced the filter....i now am getting significantly more pressure for longer but after driving it for a while it resorted back to going to 0 pressure when it stopped and then once i begin accelerating it rises again.....to me it sounds as if the lines are dirty and a few more changes might clean it out? any ideas?

shawn

[91 RS Camaro]

1991,

Today I am expecting good wether. If the snow melts off my car
I plan to begin replacing my oil pressure switch, changing the oil and filter, (and replacing the heater core because its busted).I hope this makes a difference.

Ill get back to you.

Mike

[dxrflyboy]

If you're lucky, the relief valve is sticking open and changing the oil cleaned it enough for it to close a little more. Try dumping some engine flush in before you change the oil again. Pour the flush in, run the engine for 10-15 mins, then change the oil. Don't rev the engine or drive the car with the flush in the crankcase!

Dan

[91 RS Camaro]

Replaced oil pressure switch, it has worked well for the last few days...