01 F250 engine oil pressure - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 07-04-2011, 03:43 PM Thread Starter
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01 F250 engine oil pressure

Have an 01 F250 with a 7.3 I bought as a fix up that is turning into a nightmare. Only has 113000 miles on it. Just got it home from body shop and have only put 600 miles on since I got it. Took it to a family gathering 60 miles away yesterday. Stopped on the way home to get some food, got back on highway and oil pressure drops down to below white line AND light on. After 2 miles of flickering light and jumpy gauge it came up but was jerky. Oil level OK, changed oil 600 miles ago with 15W40. Found out after hard acceleraion it comes on momentarily then off again. Even in park if you hold the RPM's up it drops lower. Aren't the light and the gauge on 2 seperate sender units or switches? Maybe a plugged suction screen or junk in pan? The oil was really crappy when I changed it.
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post #2 of 6 Old 07-07-2011, 08:18 PM Thread Starter
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I found out the light next to the oil gauge is for water temp and oil pressure warnng. I unplugged the oil sender and started the engine and the light stayed on and the gauge stayed at zero, so apparently the sender operates both or they're connected somehow. I put in a new sender so I'll give that a try.
Why does it seem I always end up answering my own questions on here? Not enough interest or experts on these trucks?

Last edited by dragon71; 09-04-2011 at 09:17 PM.
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post #3 of 6 Old 08-27-2011, 08:37 AM
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I have the same exact problem with my 01 F350 7.3. It just happened to me today, that's why I am on here right now. No luck so far?????
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post #4 of 6 Old 08-27-2011, 06:50 PM
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I would plumb in a mechanical gauge to verify if you have any oil pressure or not.

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post #5 of 6 Old 08-29-2011, 03:36 AM
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Thanks, I am new to the forum and to diesels trucks so I am pretty lost with these engines.
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post #6 of 6 Old 09-04-2011, 09:16 PM Thread Starter
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I replaced the sender and it seems ok now, but when it's cold at idle the pressure is ok. Step on the gas and the pressure goes down some, but after you let off it comes back up. When warm it never drops down past 3/4 position. I wonder if there is a filter bypass or pressure regulator to check out.
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