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1989 Ford F-150 Custom 4.9L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy
Posted to Ford Driveability on 5/11/2005 18 Replies

Greetings,

This one has me alittle puzzled and I hope I get some ideas to check out.

If you start out on a road test the engine misses hard until you about 1800 rpms, then like someone flips a switch, it takes off and runs great. Change into the next gear an...

18 Replies Received (View Replies)

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car Vehicle Data

1989 Ford F-150 Custom

VIN 1FTEF14Y4K
Engine4.9 L / 6 cyl / GAS
Trans4-speed Standard
DeliveryFI / Port
EmissionsUS Fed
SymptomsExcessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy
OccursAlways, Cold, Hot, Under Load, on Accel, Idle
Message Closed

car Vehicle Data

1989 Ford F-150 Custom

VIN 1FTEF14Y4K
Engine4.9 L / 6 cyl / GAS
Trans4-speed Standard
DeliveryFI / Port
EmissionsUS Fed
SymptomsExcessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy
OccursAlways, Cold, Hot, Under Load, on Accel, Idle