Changed tranny in 98 chevy k 1500 truck, it won't shift out of first gear. What could be the problem?

10

Asked by Jan 19, 2015 at 05:04 AM about the 1998 Chevrolet C/K 1500

Question type: General

Got new speed sensor module a year ago n
sometimes it wouldn't shift until I sped up
to 40-45, I always knew when it was going
to do it cuz speedom. Would lay on 0. Just
changed tranny n it's not shifting at all n
speedom. Lay's on 0. What could be the
problem?

4 Answers

18,525

It thinks it's not moving. If u replaced the speed sensor on the trans then it's either the wiring got damaged or the pcm is messed up

10

The Tranny went out all the sudden while I was driving down the road ,I lost all gears including reverse,n the shifting cable broke at same time,could whatever caused all that to happen have damaged the speed sensor as well?

10

Where is the pcm located on the truck?

1 of 1 people found this helpful.

check the ignition switch. its the black box in the steering column. my truck did the same thing and that was the fix.

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