CM870 power issues

[tree98]

(12-09-2022 )Scooby d Wrote:  

(11-21-2022 )Zocaid Wrote:  Is this fuel actuators or something else? Truck takes off and pulls sluggish and harder to shift gears after 2 days driving then clears up over the weekend after sitting two days. Almost seems like a boost leak but problem consistently clears up after sitting. It’s a head scratcher.

Just throwing out ideas..... restriction in fuel return line... a air leak on the suction line or tank tube that gets worse as the fuel gets warmer.... plugged tank vents...