14 F150 5.0

Hello all, have a 2014 Ford F-150 5.0 coyote. Weird issue.
Truck starts and runs fine drives great. Shifts great.
Engine runs very smooth.
Now sometimes when driving while in gear a truck will drop down to idle pretty much any speed. And throttle or moving the throttle does not change anything. Sometimes it seems like it registers and the truck will rev up maybe grab the gear again and go. Although very soon after returning to the state of idol and no throttle response.
But most times you're just sitting there hitting the throttle and truck is doing nothing.

1. could it be a speed sensor and transmission or ABS wheel speed?
2. there is a service wrench but no check engine light or codes.
3. It's got a remanned throttle body from O'Reilly's in there to fix any TPS issues.


Thoughts?

digitaltrucker

Maybe leadframe issue in transmission. Any codes?

SALEEN961

iTrader: (1)

You might want to leave a scan tool hooked up while driving so you can see if the accelerator pedal or throttle body is still working when this happens. What you're describing sounds like a failing throttle body, it will throw a code, but the code clears when you cycle the key. You have to catch it in the act and pull the code while you sit broken down in the middle of the road. I'm not sure why the codes for the throttle clear after cycling the key, but I've seen it on many Fords.

MPETE

iTrader: (1)

i'm gonna say even though it's been replaced, it's still a throttle body issue.