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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

cruise control, ignition switch, headlight switch

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Old Jul 7, 2018 | 04:08 PM
  #1  
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rogersdan
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cruise control, ignition switch, headlight switch

I had a broken ignition switch and a bad tail light switch (part of head light switch). Both were repaired and now the cruise control does not disengage when I tap the brakes. The CC will disengage when I touch the off button on the steering wheel. Any ideas on what got crossed up during the repair of the ignition and tail lights? Thanks, Dan
 
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Old Jul 7, 2018 | 11:08 PM
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mary-kate
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What year truck? Auto or stick?

The signal to deactivate the cruise control comes from the stop light switch and through the clutch interlock switch or jumper module and/or pressure switch, depending on what you have.
 
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Old Jul 8, 2018 | 09:29 AM
  #3  
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rogersdan
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mary wo-kate,

Its a 1988 f250, 351W with automatic (C6) transmission. I'm wondering what was incorrectly rewired on the steering column to cause this problem. Thanks, Dan

T
 
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Old Jul 8, 2018 | 11:46 AM
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From: Easton,Ks
The brake switch is the only electrical switch you have on this system. Its wiring does got through a plug on the column.
You need to check your vacuum dump valve also.

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Old Jul 11, 2018 | 04:23 PM
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tjc transport
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first thing i would do is look to see if the brake lights are working.
 
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