1991 Ford F Super Duty Custom 7.5L High idle
This is an F700 with a 7.0L. the computer controls are the same as a 7.5L, with the added throttle governor on top of the intake. It will not idle below 1800 RMPs once the throttle has been moved. it will idle fine when restarted, but return to high idle when ...
FIX posted 6/5/2007
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Vehicle Data1991 Ford F Super Duty Custom
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1991 Ford F Super Duty Custom
VIN | 1FDNF70J3M |
Engine | 7.5 L / 8 cyl / GAS |
Trans | 5-speed Standard |
Delivery | FI / SEFI |
Emissions | OBD1 |
Symptoms | High Idle |
Occurs | Always |
Misc. | F700 7.0L |
Trouble Codes
411 | unable to control idle |