Off-Road Forums & Discussion Groups - View Single Post - Oil pressure is 0 at idle, fine above 1,000 rpm???
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post #2 of (permalink) Old 12-03-2000, 05:13 PM
**DONOTDELETE**
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Re: Oil pressure is 0 at idle, fine above 1,000 rpm???

my truck ('88 f-150 w/ 351w) has been doing EXACTLY the same thing since ~115,000 miles. your oil pressure is not really 0 psi though...i unscrewed the oil pressure sender from the block and screwed in a snap on mechanical oil pressure gague...it read ~ 5psi at hot idle with the tranny in drive and the parking brake on. Also, there apears to be an electrical problem of some sort w/ my gague. With the headlights on and the blower motor on full, the gague reads significantly higher than with them off....

I think the oil pressure problem is a combination of worn bearings, a worn oil pump and a clogged pickup screen....pulling the oil pan will be a pain in the butt w/o pulling the motor first, which really isn't so bad if you've got a cherry picker and a friend helping.

-John

 
 
 
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