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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

motor help needed badly

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Old Jun 7, 2011 | 06:39 PM
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motor help needed badly

ok so i have a 1991 f250 xlt with the7.5 (460) in it i recently had to install a new alt after that the truck wont run if i let it idle it shuts right off if i keep it at 2000 rpm it runs fine if i unplug the map sensor runs a lil better but still stalls i know its not the map sensor any help would be greatly appreciated
 
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Old Jun 7, 2011 | 10:31 PM
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Have you pulled the codes?
 
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