oil pressure

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oil pressure

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Ford Forums >> Ford Trucks, Ford Vans & Ford SUV's >> Ford F-150 >> oil pressure

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oil pressure - 5/19/2005 11:32:37 AM

paguy215

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Joined: 5/19/2005
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I just bought a 1990 f150 it has a 5.0 engine, truck ran ok when i bought it 155,ooo miles now after i derive it about 20 miles the oil pressure goes down to nothing and the engine light come on, it has a check enging and engine light...my question is this the oil pump or something more serious...also if i rev the engine to about 1100 rpm the oil pressur goes back to mormal...

thanx guys in advance for any help...

Post #: 1

RE: oil pressure - 5/20/2005 12:39:34 PM

cctxfish

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Check it with a mechanical oil pressure gauge, might just be a bad sending unit.

(in reply to paguy215)

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RE: oil pressure - 5/20/2005 3:34:55 PM

skip

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I agree, check it with a mechanical gauge. But at 155K I wouldn't hope for much. If it truly is low at idle your main bearings are probably worn. Try heaver weight oil it will prolong life a little

(in reply to cctxfish)

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