93 k1500 4l60e
I have a 93 k1500 had trans rebuilt an sometime it
won't downshift shift it to first it fill like it is in
second gear shift it out to overdrive it shifts fine
step on it it down shifts it drive great can shut it off
start it back it might shift out fine for a while it
might do shift when you stop got any idea
First thing to check is the signal from the VSS, if it is unstable that can cause problems, next would be the resistance in the shift solenoids and the transmission wiring. If you still can't find the problem then maybe a trip to a tranny shop might be in order.