Gauges
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From: North of Kansas City.
Gauges
My F-150 has idiot lights for the oil and amp. Every time im mean to it the oil light starts flickering at idle. I was wondering if it would affect the reading if i put a Y end on there so i could run the stock one and the aftermarket mecanical one. Also anybody know what PSI that oil light comes on at?? Thanks James.
Last edited by 73-79P/ULover; May 29, 2004 at 09:23 AM. Reason: spelled title wrong
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Senior User
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From: North of Kansas City.
Thats what im thinking.. 4psi is really really low isnt it? B/c my other 78 F-250 carries 90lbs of oil pressure cold and around 80lbs warm. I also got a brand new oil pump in F-150, well about 2 weeks old. Still dont carry good pressure. I might try T'ing into it and just see how it works. Thanks James.
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Joined: Aug 2003
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From: North of Kansas City.
Well both trucks got 400s in them. And the F-150 has a new oil pump and the F-250s is about 4 years old. So why does it carry better then the F-150s? worn bearings on the F-150 i quess.
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Ah, More info.
Luck of the draw.
Oil pressure is determined by the oiling system,viscosity of oil,clearances in bearings,wear in oil pump.
"The vehicle has nothing to do with it"
They are both 400's and that is what pressure is based on.
Some engines operate at 55psi...others at 75psi
The rated oil pressure for a 400 is 50-75 psi.
The 460 is 40-65 psi
The 360 is 35-60
The 400 was notorius for it's inferior oil system, yet mine went 317,000 km before it died.
The Oil Bible
If you take that highest oil pressure engine and put in another truck,then that truck has the highest pressure *in its engine*
Luck of the draw.
Oil pressure is determined by the oiling system,viscosity of oil,clearances in bearings,wear in oil pump.
"The vehicle has nothing to do with it"
They are both 400's and that is what pressure is based on.
Some engines operate at 55psi...others at 75psi
The rated oil pressure for a 400 is 50-75 psi.
The 460 is 40-65 psi
The 360 is 35-60
The 400 was notorius for it's inferior oil system, yet mine went 317,000 km before it died.
The Oil Bible
If you take that highest oil pressure engine and put in another truck,then that truck has the highest pressure *in its engine*
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