Originally Posted by
LCAM-01XA
You can't do that with the factory PCM tho, so he must have done something to the VB to bypass the TCC solenoid and thus override the PCM's command over it in 2nd gear. Actually how do you know when the TCC applies?
I know the TC is locked because when I touch the brake pedal, the TC unlocks and the RPM's drop under engine braking and the engine braking effectively stops. This is the same thing that happens when the truck slows to 20 MPH under engine braking: TC unlocks allowing the truck to coast/stop without stalling the engine.
I can get the TC to lock up in 3rd or 4th when I coast simply by applying any amount of throttle, but I think this is normal.