No cruise control 2000 f250 7.3 diesel

Discussion in 'Domestics' started by donny7.3, Feb 23, 2017.

  1. donny7.3

    donny7.3 Newbie

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    my cruise control has stopped working .

    MAKE: Ford:
    MODEL: F250:
    YEAR: 2000 :
    MILES: 373000:
    ENGINE: 7.3 diesel :
    DESCRIBE ISSUE my cruise control stopped working in my truck JackC is my grandfather and he said you guys might be able to give me some suggestions on how to fix it.
    I've already changed out my Brake pressure switch On the master cylinder that was what a different forum said but that didn't fix it I'm hope I have better luck here thank you
    ....
     
  2. JackC

    JackC wrench

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    Donny: Good to see you on here. Have you checked the fuses?
     
  3. billr

    billr wrench Staff Member

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    No codes set, and have you had it scanned with a high-end scanner that looks for codes beyond the OBD2 basics?

    Elaborate on what you mean by "stopped working". Does it not come on at all (no "power on" light), or powers up but won't engage, or engages but won't maintain speed properly?
     
  4. nickb2

    nickb2 Wrench. I help when I can

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    Easy question here, does the horn and cig lighter work?

    If they do not, suspect a bad clock spring. Which ford calls a air bag sliding contact. Other easy question Donny, I am going to assume this is a manual. Have you checked the fuses. Check the following ace 0 pdf out. It may help.
     

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  5. NickD

    NickD wrench

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    Three evolution stages on these things, vacuum actuator, electrical was super simple, locking solenoid, one switch would activate it, others would release it, speed was mechanical. Then electrical servo, this is what you have, speed is Vss, steering wheel switches to activate of deactivate it, along with the brake switch that was to be closed before it can be activated. Last is throttle by wire, everything is inside of the ECU, PCM, or whatever, scanner.

    Really have to have a circuit diagram, alldata.com should have one, or maybe the other Nick can post it, switches can be tested with an ohmmeter, see yours are mounted on the steering wheel, convenient, but not exactly easy for trouble shooting. See some servos on ebay, but can also be a connectivity problem like a corroded terminal.

    Servo motor is constantly reversing pushing that cable in an out, is possible after 370K miles its worn out, and after 17 years, that cable needs cleaning and the lubrication is all dried out. Don't know until you look.

    Ha, have three vehicle ranging from 1982 to 2017 with all three generations, can keep you busy.
     
  6. kev2

    kev2 wrench

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    before we 'tear into it' -
    Is horn working ?
    Any other issues ie speedo, ABS light ?
    And colleagues suggested info and request's will help -

    PS: F250 superduty ?
     
    Last edited: Feb 24, 2017
  7. nickb2

    nickb2 Wrench. I help when I can

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    Ford calls the clockspring a speed control/horn switch assembly. Don't forget to check the ace0 pdf out in conjunction with these wiring's Screenshot (56).png
    Screenshot (55).png
    .
     
  8. donny7.3

    donny7.3 Newbie

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    It is an automatic
    Yes the horn works
    No there is no ABS light on
    All fuses are in place and good
    What I mean by stopped working is I had it on driving down the road at about 70 mph and it just shut off and is now not able to activate again
     
  9. JackC

    JackC wrench

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    The charts above do not seem to reflect Donny's experience.

    He says he replaced the brake pressure switch on the master cyl. That switch seems to appear only on the manual trans chart and his is automatic.

    The 31.5 chart, which I assume is for automatic does not even show a brake pressure switch. But, of course, there is the brake pedal POSITION switch that should be checked.
     
  10. billr

    billr wrench Staff Member

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    Is there a "power on" light for the CC; is it on? How about the scanning for all codes, has that been done?
     
  11. JackC

    JackC wrench

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    Donny: http://www.aa1car.com/library/cruise_control_diagnose.htm

    shows your vehicle as having a recall on the switch that I think you have already replaced.(actually a fuse installation)

    It also has a good description of the various cruise control systems that may help you understand what may be the problem.

    Scanning for codes, as has been suggested, requires a sophisticated scanner that you probably do not have and the free ones at parts stores may not be capable of either. There can be codes even if the check engine light is not on. Possibly an expensive check at a dealer or good independent shop???




    You need a scanner that can check HS-CAN codes



    HS-CAN modules:
    -PCM (Powertrain Control Module)
    -ABS (Anti-lock Brake System, includes AdvanceTrac and Traction Control)
    -RCM (Restraint Control Module, AKA airbags and seatbelts)
    -AWD (All Wheel Drive module, if equipped)
    -OCSM (Occupant Classification System Module, AKA Passenger Seat Sensors)
    -PAM (Parking Aid Module)
    -IPC (Instrument Panel Cluster)
    -PSCM (Power Steering Control Module, Hydraulic PS only)
    -SECM (Steering Effort Control Module, Electric PS only)
    -CCM (Cruise Control Module)



    I have a ELM327 Clone scanner device. Stock they claim to connect to HS-CAN, but I have never verified that.

    You may want to simply forget cruise control if the diagnostic and repair expense is too high.

    If your brake lights are not working properly that is an indication that the brake pedal position switch is bad.
     
    Last edited: Feb 27, 2017
  12. kev2

    kev2 wrench

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    OK we are back - I thought you gave up or solved it.
    Any chance you have scanned for codes? - yes even if CEL is off.
    The horn works and no SRS lights pretty much eliminates the clock spring - mine and nicks first suspect.
    I believe there is a BIT* for the superduty and before I dig it out of archives let me know - F250 superduty? yes or no.

    Jack is on to another suspect the brake pedal switch, often more than brake lights - the TCC as well as cruise runs thru that brake pedal switch.
    I will also mention TOWING is that applicable - the trailer connector is problematic feed back and shorting the system.

    *BIT - Built In Test
     
  13. JackC

    JackC wrench

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  14. JackC

    JackC wrench

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    Donny: Is this the part you replaced?

     

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