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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Oil Pressure problems!!! help please!!!

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Old Jan 12, 2007 | 05:59 PM
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TomMarcell
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Cool Oil Pressure problems!!! help please!!!

Fist off i wanted to say hello, and im new to this forum... and i would appreciate any help i can be given to fix this problem.

I have a 1980 ford f150, Im in need of help because i keep losing oil pressure.

I have changed the Main Bearings, and put in a new Oil Pump, also i cleaned the the sludge from the system. Is there anything else i can do to fix this problem?
 
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Old Jan 12, 2007 | 06:01 PM
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oh and i changed the rod bearings and the oil also
 
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Old Jan 12, 2007 | 06:07 PM
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Welcome TomMarcell, to FTE.

Have you hooked an oil guage to the engine.
It could be a faulty truck oil guage or the oil sensor.
 

Last edited by 1975Ford; Jan 12, 2007 at 06:11 PM.
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Old Jan 12, 2007 | 07:25 PM
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The oil sending units go bad eventually. Theyre cheap, I'd just get a new one.
 
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Old Jan 12, 2007 | 07:31 PM
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Which engine?

What oil filter are you using?
 
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Old Jan 12, 2007 | 08:58 PM
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The orifice of a sending unit can become plugged as well.
Put a mechanical gauge T'd in conjunction with the dash gauge sending unit to know what it is for sure.
 
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Old Jan 23, 2007 | 12:16 PM
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There are a number of things that may possibly contribute to a loss of oil pressure and most have been mentioned in other replies. The obvious would be a faulty sending unit or a bad oil filter. The internal issues are bearing clearences. Excessive bearing clearences all affect the oil pressure. You said that you have changed the mains and rod bearings but the cam bearings play an important role in building proper oil pressure.If you determine that the problem is internal, you may as well refresh the engine and start with a fresh build.
 
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