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1988 Ford F-250 Custom 5.8L Poor Idle Quality, Misfire
Posted to Ford Driveability on 9/3/2002 12 Replies

Hello ford experts, I have a lean running problem at idle that I hope someone can shed some light on.

This truck runs lean, like a vacuum leak and I can't figure out why. The HC is high, when I hook the scope to the ignition system, it indicates that all cyls...

12 Replies Received (View Replies)

  Related Documents & Media  1988 Ford F-250 Custom

 
Message Closed w/FIX

car Vehicle Data

1988 Ford F-250 Custom

VIN 2FTHF26H3J
Engine5.8 L / 8 cyl / GAS
Trans5-speed Standard
DeliveryFI / multi port
Emissionsobd1
SymptomsPoor Idle Quality, Misfire
OccursOn Accel, Idle

Trouble Codes

41lean exhaust
Message Closed w/FIX

car Vehicle Data

1988 Ford F-250 Custom

VIN 2FTHF26H3J
Engine5.8 L / 8 cyl / GAS
Trans5-speed Standard
DeliveryFI / multi port
Emissionsobd1
SymptomsPoor Idle Quality, Misfire
OccursOn Accel, Idle

Trouble Codes

41lean exhaust