2000 Sierra 1500 4.3 transmission question?
4l60e overhearing warning came on dash right when the truck didn’t want to change gears. I immediately pulled over. Trans fluid is full and there’s no leak and transmission was fully rebuilt in Jan. New harness new solenoids new everything by a shop. I have a new radiator and there’s no signs of leaking. I have warranty but any ideas?
- Anonymous3 months ago
With the transmission not shifting the most likely cause is an internal fault with the torque converter. Take back to the transmissiion shop for warranty repairs.
- PhilomelLv 73 months ago
Plugged radiator passages. Radiator flush.