Issue when step on the throttle but not when accelerating with the Cruise Control button

Discussion in 'Peterbilt Forum' started by Dairon00, Apr 25, 2021.

  1. Dairon00

    Dairon00 Bobtail Member

    Apr 29, 2020
    My truck is a 2006 Peterbilt 379 with a 2005 Cat C15 MXS engine, several weeks ago I noticed that my truck when I accelerated it with the accelerator pedal started to have like a hiccup until i stopped accelerating, so when I accelerated it with the cruise control button it accelerated good and it works well so it only makes the hiccups when I accelerate it with the accelerator pedal, by the way, I already change the accelerator pedal and the same problem continues, who can tell me where to start looking for the issue?
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