i have a 1989 mustang i recently had the engine rebuilt since having this done i have broken the oil pump shaft and had to replace the oil pump. my oil pressure usually stays @60 psi while driving and @ about 55 when idiling. yesterday my oil pressure started acting crazy . it dropped all the way down to about 10 psi . i turned the car off and turned back on and the the pressure went up to about 20 psi . i checked the to see if i had oil and it was full. I reved the engine up and the pressure went back to 60psi but it drops up and down drasticly with the change of rpms
May 26, 2008 at 8:13 AM