Forum Discussion

kamala's avatar
kamala
Explorer
Mar 28, 2018

Foot throttle sensor

I have a 1998 Country Coach Allure with a 325 Cummins
I have no throttle at all the engine doesn't rev when applying the gas pedal.
We tested the foot throttle sensor and it jumps from 0 to 3900 with no graduale reading like the manual said it should.
I got a replacement from Williams controls and it doesn't register anything on th ohm reader (They arent open yet so I'll talk to them then)
But in the mean time do you think I'm looking in the right place?
Or is there another route to take?
Thank you for any advice
  • kamala's avatar
    kamala
    Explorer
    Apr 08, 2018
    Just some FYI if anyone runs into this problem
    My 98 Country Coach/diesel Cummins / King cruise control
    I had no foot throttle also couldn't shift
    Located the King Cruise Control box back near the engine and tested the RED wire going into the box from the front it was loose......all my troubles are fixed now from the loose wire.
  • Dave2001's avatar
    Dave2001
    Explorer
    Mar 30, 2018
    Since your vehicle is a 98 model check this website.
    www.cumminshub.com/service/cummins-apps.html
    T his procedure should be what you need.
    The apps sensor is fairly pricey depending on where you get it.
    Good Luck!!
  • hotpepperkid's avatar
    hotpepperkid
    Explorer
    Mar 29, 2018
    I dont know about a Dodge but my 7.3 PSD did that to me at Home Depot one time. It idled fine but thats it. Turns out it was a 10A fuse, who would have thought. Why it blew no one knows but it did. I had it towed and it cost me $100 to find that out.
  • kamala's avatar
    kamala
    Explorer
    Mar 29, 2018
    How much voltage should be at the foot throttle sensor?
    King Cruise Control 2600
    Williams Control PEDAL
    I dont care about spelling
    I just want someone to answer that knows what they are talking about
  • spoon059's avatar
    spoon059
    Explorer II
    Mar 28, 2018
    dodge guy wrote:
    The big problem is more than likely the gas pedal. You need a diesel pedal for that motor!! ;)

    Seriously. I think your in the right spot. Is the new sensor a genuine Cummins part or is it aftermarket? It’s possible you got a bad sensor.

    Is a gas pedal the same as a gas peddle? How is that different from an accelerator pedal?:W
  • dodge_guy's avatar
    dodge_guy
    Explorer II
    Mar 28, 2018
    The big problem is more than likely the gas pedal. You need a diesel pedal for that motor!! ;)

    Seriously. I think your in the right spot. Is the new sensor a genuine Cummins part or is it aftermarket? It’s possible you got a bad sensor.
  • DrewE's avatar
    DrewE
    Explorer II
    Mar 28, 2018
    The throttle may not be a simple potentiometer, but some other sort of sensor--maybe a hall effect sensor, or an optical encoder--in which case you wouldn't necessarily read anything with an ordinary ohmmeter when disconnected.

    I don't think you're barking up the wrong tree. The symptoms and measurements of the old system do seem to corroborate with each other.
  • ScottG's avatar
    ScottG
    Nomad
    Mar 28, 2018
    You'll have to do some research but with some Cummins there is a calibration routine you have to go through after replacing the TPS or APPS.

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