Question about 2003 Ford Expedition

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Did you check to see if the cruse control has a blown fuse?

Posted on Jun 05, 2014

  • Gilbert Labont?
    Gilbert Labont? Jun 05, 2014

    yes he has, he said both fuse number 5 and number 12 were both good (f5 and f12)


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If all fuses are good and wiring is good too, then there are still a few things that can be the problem. The easiest ones to check first is the vaccuum hoses that operate the diaphragm that moves the throttle. They could be unplugged, cracked, cut, etc. and any vaccuum leak on the system will at least hinder it, and can also prevent it from working. If all that is fine, then you probably have a faulty sensor, solenoid or switch somewhere. The brake pedal switch is used in the system to disable it when braking, and some models have 2 switches on the pedal. One for the cruise control, and one for the brake lights. So if the switch is stuck the cruise will think ur braking and prevent it from working. The solenoids that controls the vaccuum going to the diaphragm can also be dead and not open the vaccum ports when needed, so the throttle won't ever move. These are easy to test usually with a multimeter, since solenoids are just coiled wired that make a metallic shaft move, so there are only 2 terminals on them and you should have some resistance between the terminals if they are ok. If you have direct continuity without even a little resistance, then the coil is shorted, and if you have no continuity at all then the coil is cut open, and in both cases you will have to replace the solenoid. The vehicle speed sensor is also used for the system of course, and there are a few here you will need to check, and there are usualy one or 2 on the differential, and in most cases each of the ABS wheel speed sensors will also be taken in account, which also means the ABS unit's computer needs to be functionning correctly. So if you have a brake or ABS light on or are having trouble with the ABS while braking, this might be your problem. Of course the transmission computer usually plays a role in this too and needs to be functionning correctly, but in these cases it becomes too hard to figure out unless you have alot of equipment and knowledge on those. So i'll cut the rest short and just say that if you have a check engine light on, then you have a problem that quite possibly will prevent the cruise from working, so go to a garage or friendly mechanic to have him/them get the codes out for you so you can try and fix the problem, and hopefully your cruise control will work after that. Hope this helps! :)

Posted on May 24, 2014


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Posted on Jan 02, 2017

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SOURCE: cruise control does not work

first, check the relay... but second, i had an 04 f150 heritage and i believe there was a recall on the cruise control unit for certain model yrs... i think it was 02-04... have your dealer check it out and they will replace it for free

Posted on Jan 17, 2009

  • 1 Answer

SOURCE: 2003 expedition cruise control inoperative

I had this same Problem and it was a simple vaccuum hose leak connected to the cruise control module. Try replacing this small hose.

Posted on Mar 01, 2009

  • 1 Answer

SOURCE: I have a 2003 Ford Explorer and the cruise-control doesn't work.

an easy answer would be a vacuum line with a hole but with this late model and the fact its a ford i would think electrical problem. ford likes to use relays in all its electrical apps. if not the switch itself maybe a relay. the problem is finding which one. i go down to the auto parts and see if i can find info on the relays i can see or take it to a shop u can trust and have it diagnosed

Posted on Apr 23, 2009

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SOURCE: 2003 expedition cruise control inoperative no

I'm having the same issue with mine. Just checked both fuses #5 and #12 under the dash, but both are fine. Can't find Relay #302 for the speed servo. 2003's aren't listed in the recall. Ugh!

Posted on Dec 11, 2009

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SOURCE: 2001 F-150 cruise control stopped working.

really tough to do on the net but first we need to know about any codes...

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 there might be some switch concern

If CRUISE CONTROL indicator flashes once followed by 5 additional flashes, replace speed control servo/actuator.

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. With the codes we can then better diagnose your concern

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. If self-diagnostics do not pinpoint fault there is more we can do but tough over the net

Posted on Mar 27, 2010

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I just fixed my Cruise control problem. It didn't work at all, no light in the dash either. What had happened was, I had changed the brake booster some months back and when the brake pedal is disconnected from the booster shaft, it allows the pedal to raise too high. It will contact the cruise control disconnect switch to the left of the brake switch. To find the switch, look close and there is a "L" bracket welded on the brake pedal and the cruise switch contacts this bracket. Well this switch is a self-adjusting switch designed to be installed with the pedal at least an inch or so depressed. When the pedal is released it will contact the switch and push the shaft into the switch to the determined setting and it will lock into that position. I was able to pull the shaft out enough to make contact again and it self adjusted like it's supposed to and now the system works great! What made me go to this switch was by checking power at pin 6 (blk/yellow wire) at the cruise servo connection. This connection has 6 pins and the end pins (1 & 6) both have 12 volts. Mine had no power at pin six, which means the cruise deactivation switch is the problem. Older Expeditions had this switch on the brake master cylinder (recall for fires, etc), but 2003 and up has it on the brake pedal itself. Once I figured out where the switch actually was, it was easy to figure out. If you have done any work around teh brake pedal and disconnected it for any reason, you gotta check this out.

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