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| F Series Forum covers questions and discussions regarding Ford F-150, Ford F-250, Ford F-350, Ford F-450, Ford F-550, Ford F-650, and Ford F-750. |
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#1
06-26-2005, 09:44 PM
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oil presssure dropping
hi guys i got a 79 f150 351 mod.. every time i pull up to a redlight
the old pressure drops all the way to the Low marker. but it goes back up when i take off. is this a serious problem or is this a simply fix . thanks for your help todd....... 
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#2
06-27-2005, 08:47 PM
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Re: oil presssure dropping
Install mechanical gauge to see what pressure is at idle. If pressure is OK, replace sending unit. If pressure is still low, look to weak oil pump or excessive bearing clearances.
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Being way2old is why I need help from younger minds The sooner you fall behind the more time you'll have to catch up.  HEY Y'ALL--READ THIS Here are some of our old vehicles for sale. 
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#3
06-28-2005, 01:51 PM
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Re: Re: oil presssure dropping
/\ /\ Ditto. also how many miles on your truck?
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#4
06-28-2005, 09:17 PM
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mileage... 134k belive it or not
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