No oil pressure - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 02-08-2007, 05:17 PM Thread Starter
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No oil pressure

I have been working on a 95 F350 for about a week. It came to me needing new orings in the oil cooler. I fixed them and ghanged the oil. When I drained the oil I got about a quart and a half of antifrreze out of the pan. After I got it back running, the pressure gauge in the dash dropped to nothing. It drained the resiviour and cut off. I put a manual gauge in the sde of the block and it has no pressure. I changed the low pressure pump this morning and still have no oil pressure. Has anyone ever had this happen or have any suggestions before I pull the motor out. Thanks, Jody

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post #2 of 7 Old 02-08-2007, 05:43 PM
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Originally Posted by smokin dually View Post
I have been working on a 95 F350 for about a week. It came to me needing new orings in the oil cooler. I fixed them and ghanged the oil. When I drained the oil I got about a quart and a half of antifrreze out of the pan. After I got it back running, the pressure gauge in the dash dropped to nothing. It drained the resiviour and cut off. I put a manual gauge in the sde of the block and it has no pressure. I changed the low pressure pump this morning and still have no oil pressure. Has anyone ever had this happen or have any suggestions before I pull the motor out. Thanks, Jody
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post #3 of 7 Old 02-08-2007, 09:10 PM Thread Starter
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Not quite that easy. I posted that I changed the oil, which means I filled it back up.

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post #4 of 7 Old 02-09-2007, 03:17 AM
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not trying to ask a dumb question but did you prime low pressure pump, and alot of those low pressure pumps have to be installed only one way ,ive seen them pyt in backwards and chew up the front cover , if these arent the case i have seen the pickup tube crack or the o-ring blow out where tube meets the front cover ,

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post #5 of 7 Old 02-10-2007, 06:00 PM Thread Starter
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There is a valve inside the rear head of the oil cooler that had fallen out. After replacing the oil pump I figured this out. The truck runs fine now.

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post #6 of 7 Old 02-10-2007, 07:09 PM
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Man dont that suck.Sounds like something that would happen to me lol.Glad you got it fixed though.Kind of hard to tell someone they need the motor taken out for something like that when it had oil pressure when they brought it.
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post #7 of 7 Old 02-12-2007, 03:14 AM
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good deal!

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