Transmission will not shift?

1992 CHEVROLET LUMINA
170,000 MILES • 3.1L • V6 • 2WD • AUTOMATIC
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JAYCMORRIS
  • MEMBER
  • 1 POST
I can't find the transmission control module?
Sep 19, 2022 at 10:30 AM
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STRAILER
  • Experienced Mechanic
  • 55,267 POSTS
First make sure the fluid is full. If so, I have seen the pressure control valve cause the transmission not to shift. We should run the codes first though; you can get a CAN scanner (Controller Area Network) from Amazon for about $36.00.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is a scanner link:

https://amzn.to/3eCqWWw

This scanner does the entire car, which is easy, just in case I have included the replacement instructions on how to replace the pressure control solenoid. Check out the images (below). Please let us know what happens.
Sep 20, 2022 at 3:44 AM
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