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1986 Ford F-150 5.0L Poor Idle Quality, Surge, Misfire
Posted to Ford Driveability on 9/15/2004 7 Replies

This thing has what I believe a lean misfire at low rpm/mph. It is really felt around 25-30 mph. I unplugged the EGR with no affect. Just for fun I did a Motorvac on it and I think it got worse. Checking TPS at the computer while it is acting up shows no drop ...

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car Vehicle Data

1986 Ford F-150

VIN 1FTEX15NOG
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality, Surge, Misfire
OccursAlways, Cold, Hot, Under Load, Cruise
Message Closed w/FIX

car Vehicle Data

1986 Ford F-150

VIN 1FTEX15NOG
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality, Surge, Misfire
OccursAlways, Cold, Hot, Under Load, Cruise