Question about 2008 Ford F 450 Super Duty

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Brake light on and cruise control

Cruise control not working, brake light on

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Forgive this if it seems I am being condescending; I promise I am not. You have already answered half of your problem. The Cruise will NOT work when it thinks you have your foot on the brake. I would suggest you start at the brake light switch first. It may have simply slipped back in the bracket, causing the brake light to come on. If a barrel clip type bracket and you can push the switch back into its closed position, my guess is your problems will both go away.

Posted on Apr 16, 2014

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Posted on Jan 02, 2017

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cwbtat
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SOURCE: My '89 Crown Vic keeps blowing brake light fuses.

check under the dash st the brake pedal,there is a brake light switch which is tied into the cruise control,you could try unplugging that and see if it fixes the problem(remember you will have no brake lights while it's unhooked) if the problem is gone replace the switch.

Posted on Apr 30, 2009

  • 157 Answers

SOURCE: 2003 mach1 mustang, no brake lights, no cruise control

Check the fuses, if they are blown, make sure they are the right size. If not, do not use bigger fuses than the circuit is supposed to have. If they are too small, use the correct size. If they are, do you have any extra equipment using the same circuit? Like a stereo or GPS or an alarm system? Move them to a different circuit. Check the relays to see if they are defective. Check all the bulbs to make sure they are the right ones too. Make sure they are in the right way. Check grounding wires, make sure they have good connections.

Posted on Aug 26, 2009

  • 1 Answer

SOURCE: Brake lights and cruise control don 't work

ive had the exact same thing happen to me on my 2005 ford f-150. it was the sensor attached to the top of the brake pedal. i just jiggled it and its worked fine ever since.

Posted on Mar 01, 2010

kidspeedy
  • 321 Answers

SOURCE: Cruise control, Every thing shows that its

check the linkage from the cruise servo to the throttle.
and make sure the vacuum servor is connected to the vacuum line and check that the servo is not leaking vacuum.

hope this helps

thank you
jm

Posted on Mar 19, 2010

csmock132
  • 4669 Answers

SOURCE: 1995 ford taurus, brake lights not working also

Sounds like the brake switch is bad.

Posted on May 19, 2010

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