oil pump pressure relief valve
#2
LSxGuy widda 9sec Mustang
iTrader: (12)
Joined: Nov 2001
Posts: 3,043
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From: Texas and Qatar
Thats a huge problem with 98-00 cars, and its the pressure regulator valve in the oil pump that sticks. I would recommend replacing it ASAP before it fails completely, the loss of oil pressure you see now is a warning that it will get worse. Its either a $80-$130pump now, or a $3000-$5000 shortblock later...