Electronic throttle

[BarryKH]

I've noticed that going up or down hills if I let off the accelerator, the engine revs up to 1500 to 2000 rpm. I know the electronic throttle is position sensitive, but is it supposed to react to this? Is this a sign of a bad sensor, or normal? What is involved in converting it to a cable throttle, which is stable in any position of the vehicle.

[CamGTP]

It's impossible to swap to a cable throttle body, it's electronic or nothing in your truck.

 

There are many reasons for an rpm jump but it's hard to say if the truck is actually having a problem or if it's acting correctly.  Anytime you let off the throttle at speed the rpm should jump a little as the torque converter will unlock. If you're going down a hill it's possible that it may even downshift as part of the grade braking to help slow the vehicle down or maintain speed using the engine.

 

But if your getting 1,000rpm spikes everytime you let off the throttle, then something else may be wrong.

Edited March 5, 2022 by CamGTP