Re: weird trans problem help
There is in fact not a big difference when you have your foot on the accelerator, or when you are in cruise mode, its only a different cable which hold the throttle plate in position.
Its the TCM which controls the torque converter clutch engagement, depending on several inputs. I could not find any different input for manual accelerator or cruise. Did you check for any fault codes with the key dance?
Without any fault codes set, i would start cleaning all connectors on transmission, TCM and PCM.
A faulty TPS sensor could cause the torque converter disengagement, but it would not explain it behaving normally in manual mode.
JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks /
Pirelli Scorpion ATR 245/65/17/
Transgo reprogramming shiftkit.