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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

NEED HELP!!!

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Old Apr 21, 2024 | 09:25 PM
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KodaBear1's Avatar
KodaBear1
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NEED HELP!!!

I’ve got a 1990 f250 xlt lariat with a 460 big block and I can’t seem to solve the problems I have been having. Rough idle, low rpm, chugging, hesitating and then dying when ut het call gets warm.
I’ve replaced MAP
FUEL PRESSURE REGULATOR
FUEL FILTER
ive tested the pump.
id like to post video.
now it’s idling kinda high until under load.
 
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Old Apr 21, 2024 | 11:06 PM
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My4Fordtrucks's Avatar
My4Fordtrucks
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Have you checked for Key On Engine Off (KOEO) fault codes and fuel pressure? What were the codes and fuel pressures readings?
 
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