G GMboy87 New member Joined Jul 11, 2015 Messages 1 Reaction score 0 Points 0 Jul 11, 2015 #1 Ok I have a 1987 Gmc S15 JIMMY when I start it but as it gets to operating temp it slowly loses oil pressure what could cause this and it also makes a rattling noise like a rocker is loose
Ok I have a 1987 Gmc S15 JIMMY when I start it but as it gets to operating temp it slowly loses oil pressure what could cause this and it also makes a rattling noise like a rocker is loose