Forum Discussion

Lumpty's avatar
Lumpty
Explorer
Mar 24, 2018

Interesting E450 Problem

Never heard of this occurring, but according to my dealer it is a frequent issue, that at least happened to me 20 miles from home at the end of a 2500 mile trip, because otherwise we'd have been stranded a few days.

Accelerating out of a toll booth towards an offramp, right at the 1-2 shift point, my previously anvil reliable 2010 chassis E450 V10/5R110 lost drive, or at least nothing above idle creep. Lit up the wrench light on the dash. Crawled up the flyover off-ramp, coasted in neutral down, and then limped it with flashers blinking on the shoulder 3 miles to the nearest Ford dealer.

They wanted nothing to do with it, but did call me a tow, and while the wrecker got there, confirmed that my local in town dealer would take it. Given it happened right at a shift, I was thinking transmission. After we got dropped, and I was getting things out of it and preparing to rewinterized there in the lot, a tech ran the code reader and said there was no signal from the throttle pedal. Hmmmn. Vehicles these days are all drive-by-wire, and apparently the electric rheostat in the pedal went kaplooey.

Telling the story, one of my racing friends shared he had the same thing happen in a F250, and was able to limp it to a dealer via using the cruise control buttons as a hand throttle. Wish I'd thought of that and it would have saved me $400 and a trip on the hook. The pedal assembly replacement part was $360, and two hours of labor, which along with other incidentals made for a $660 tab.

$1000+ for a relatively simple part that used to be a cable.....
  • Ok. Thanks Ron for the info. I'm going to mess around with that today. Very good to know.
  • docsouce wrote:
    How do you use the cruise control as a hand throttle? First time I have ever heard of that.
    You need to be moving at the minimum speed for cruise to function which is around 35 MPH, turn on the cruise control, and use the cruise "accelerate" and "set" buttons.

    Lumpty, Thanks for letting us know. If it happens to me, I'll already know what to do to get to a repair facility, and what to tell the mechanic to replace. I suppose because I display TPS on my ScanGauge-II all the time, that number would drop way down.
  • j-d's avatar
    j-d
    Explorer II
    What was that "Rheostat Thingy" called? I'd like to know more. Did Ford provide a Description and/or Part Number?

    I can see how Cruise would help once underway. With Fly By Wire, Cruise only commands the throttle like you do when you press the Pedal. But Cruise doesn't work below about 25 MPH. How would we use Cruise to come up from standing still?
  • Sometimes when taking a sharp right hand turn my engine acceleration goes flat. I have to push the accelerator pedal all the way to the floor to get a response. I brought it to 2 Ford dealerships and was told this is a common issue. PIA

    How do you use the cruise control as a hand throttle? First time I have ever heard of that.
  • I had a similar instance while in a heavy rain storm , would not accelerate and it came out of tow haul.( I used the cruise buttons also) Drove for a short while and when we stopped for gas after restarting the engine all was fine
    2011 E350 5.4