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911 Urgent Situations Emergency Forum , Need Help Fast ? Post Here ! Urgent Topics Only

 
       

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Old 08-14-2007, 05:40 PM
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Join Date: Aug 2007
Posts: 3
Unhappy low oil pressure at high rpm.

2002 7.3 Just spent 6 days at dealer and problem not fixed. High rpm and the oil pressure drops out . Dealer checked guage.(not it ) Dealer put new oil pump.( not it) Dealar pulled trans and checked gallery plug.(not it).dealer put guage on and could mimic the problem in nuetral. No clatter ,runs fine ,except when going 80 miles per hour and then give it gas the oil guage goes to zero and check engine light comes on ,I let up on the gas and the guage returns to normal. Any ideas what it could be ?
Thanks
Rmcgrath
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Old 12-16-2007, 09:49 AM
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Join Date: Dec 2007
Posts: 1
I've seen a similar thing when towing my trailer up a steep grade. I have a 1998 7.3 F250. I can also cause it to happen at high speeds. I've got 204k miles on the truck. The common thread is the high RPMs. Have you had any luck diagnosing the problem?
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