Oil Pump Problem?
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New User
Joined: Apr 2003
Posts: 2
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Oil Pump Problem?
I have a 1988 F250 5.8L 351, 104,000 miles. The Oil pressure dropped suddenly and the engine started rattling. I shut it off immediately. When I restarted it there was oil pressure for a short time and then it dropped off again and started rattling again. Its not the oil pressure gauge. Mechanic says I need a new engine or this one rebuilt. Could it be just the oil pump that is the problem? It still sounds fine shen started up. I'm not sure it needs a complete rebuild. I thought I would probably try to replace the oil pump myself, as I don't have $2500 for a rebuild, or would I just be wasting my time. Thanks for any replies or comments.
Posting Guru
Joined: Mar 2003
Posts: 1,349
Likes: 3
From: Cloud USA
Oil Pump Problem?
Pull the distributor and see if the oil pump is actually turning, I have heard that the shaft can twist off. Oil Screen could also be plugged up. Drain the oil and shine a flashlight in the drain hole to inspect the oil pick up screen I am not sure if you can do this, I just did on my 460. 104,000 clicks is early retirement for a 351.
Postmaster
Joined: Mar 2001
Posts: 4,968
Likes: 3
From: So Cal
Oil Pump Problem?
Some oil pumps have a spring pressure valve. If it breaks it could cause problems.
Don't know if yours is inside the pan or outside. If outside it is easy to check.
Good Luck,
Jim Henderson
Don't know if yours is inside the pan or outside. If outside it is easy to check.
Good Luck,
Jim Henderson
