2002 Ford F-150 cruise control works sometimes

Tiny
ROBBYS
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 4WD
  • MANUAL
  • 51,000 MILES
Out of the blue my cruise control stopped working. Then a few miles later it started working again, when I hit the on and off button and accalerate buttton. I changed out the switch on the master cylinder and didn't help. Now it works sometimes but stays on when it comes on till I cut it off and then most of the time it don't work.
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Monday, July 5th, 2010 AT 9:33 AM

3 Replies

Tiny
KHLOW2008
  • EXPERT
Hi robbys,

Thank you for the donation.

Perform the following to see if you can retrieve any trouble codes.

SELF-DIAGNOSTIC TEST

1. Hold speed control OFF button, and turn ignition switch to RUN position. CRUISE indicator should flash once to indicate successful entry into self-diagnostic mode. If CRUISE indicator does not flash, start procedure over. If CRUISE indicator still does not
flash, repair system by symptom. If CRUISE CONTROL indicator flashes once followed by 5 additional flashes, replace speed control servo/actuator.

2. Release speed control OFF button. Within 5 seconds in entering self-diagnostics, press speed control ON button. Press remaining speed control buttons in the following sequence; ON, RES, COAST and SET/ACCEL. As each button is pressed, CRUISE indicator will flash. Wait until indicator light goes out, then press next button. After sequence has been completed, indicator light will flash to indicate test passed or failed.

3. Immediately after static test has passed, actuator performs a dynamic test by automatically operating throttle.04-.40" (1-10 mm). Observe throttle movement to witness any sticking in cable or linkage. Ensure throttle returns properly. Turn ignition switch to LOCK position.
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Monday, July 5th, 2010 AT 5:06 PM
Tiny
MYANGELS58
  • MEMBER
What does it mean when the cruise light, goes on only for the off and on button but does not go on when the other three buttons are pressed

Thanks
Jerry
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Friday, January 6th, 2012 AT 9:37 PM
Tiny
KHLOW2008
  • EXPERT
You could have a fault with the brake switch or other controls. Testings would have to be performed to determine the cause.
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Monday, January 16th, 2012 AT 12:09 PM

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