About a year ago my truck for a few weeks would lock the converter up between 30-40mph at light throttle, 3rd or 4th gear wouldn't matter...if I let off the gas for a second it would unlock, also if I would accelerate moderately quick past 30-40mph it wouldn't be an issue and would lockup like normal around 50mph. I tried a different TCM, I logged it via efilive, it would happen so quickly I didn't see anything funny in the logs. One day it went away. Today, its back, I put dielectric grease in each speed sensors plug thinking that may be the issue losing a connection for a split second but the problem persists. Is this an internal solenoid issue? Using my snap-on solus all speed sensors are reading correctly, no shorts on the TCC solenoid reported, no TCM/ECM codes.
Im at a loss here, but it is driving me crazy, I have made sure the plug above the pan for the solenoid harness is clean, also put dielectric grease in it, both plugs at TCM are clean, ground on drivers rail is in good shape.
Im at a loss here, but it is driving me crazy, I have made sure the plug above the pan for the solenoid harness is clean, also put dielectric grease in it, both plugs at TCM are clean, ground on drivers rail is in good shape.