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Old 12-16-2012, 10:40 PM   #1
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Brake won't release cruise control.

1987 Ford E250 Intervec Falcon 190 with a 351W. Cruise control works EXCEPT hitting the brake will not release it.

Bought a control module, can't find where it goes. Don't know if it's a problem with a brake light switch, with a cruise control element, or just the Fates messing with me.

Googling it does not lead to any recognizeable solution. Anyone who could point in some direction would be appreciated.
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Old 12-16-2012, 11:35 PM   #2
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Sounds like the cruise cancel switch on the brake pedal.
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Old 12-17-2012, 12:07 AM   #3
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On most of them it's the brake switch, as soon as the brake lights come on it cancels the cruise.
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Old 12-17-2012, 02:09 AM   #4
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You might want to check your brake lights. Ford cruise controlls mesure the current flow to brake lamps to disinguage cruise. The module is mounted above the glovebox I think.
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Old 12-17-2012, 10:26 AM   #5
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Quote:
Originally Posted by 349 View Post
Sounds like the cruise cancel switch on the brake pedal.
Been a LONG TIME since they used that method.

Queston to the O/P. do the brake lights work

Cause that's the switch they use today.

The cruise control looks for 12 volts across the brake light switch, If it's there then the following conditions exist.

1: Fuse good
2: Switch open
3: Wires good
4: Blubs good
5: If one through 4 TRUE, Then OK to engage

If it's not there then AT LEST one of the first 4 is not present and thus the test in 5, is not met and it will not engage or it will disengage.
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Old 12-17-2012, 12:03 PM   #6
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Quote:
Been a LONG TIME since they used that method
.

And you are HOW OLD to remember that?
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Old 12-17-2012, 06:15 PM   #7
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THANKS ALL! After not finding brake switches, although the brake lights work, I took off the surround under the dash around the steering column. Up there was the "cruise control module", a fairly large affair, took it out, screwed in a new one and connected it, and I'll be darned if it doesn't work.

All cruise control functions are effective, smooth and responsive. It was a real pain in the neck, though, to find that thing, especially after chasing wires which appear and disappear up around the base of the brake pedal.

Thanks again for all the suggestions. That's what makes this place great!
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Old 12-17-2012, 06:27 PM   #8
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Quote:
Originally Posted by Bowser View Post
THANKS ALL! After not finding brake switches, although the brake lights work, I took off the surround under the dash around the steering column. Up there was the "cruise control module", a fairly large affair, took it out, screwed in a new one and connected it, and I'll be darned if it doesn't work.

All cruise control functions are effective, smooth and responsive. It was a real pain in the neck, though, to find that thing, especially after chasing wires which appear and disappear up around the base of the brake pedal.

Thanks again for all the suggestions. That's what makes this place great!
You might think this is a crazy question but,,,,,do you have a tilt steering wheel? If so, put the steering wheel in different positions and try it again.
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