Transmission swap

1999 PONTIAC GRAND AM
160,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
AMANDA KAY FORTIN
  • MEMBER
  • 2 POSTS
I am wondering if I can replace the transmission in my car listed above with a transmission from an 2003 Grand Mm v6.
Aug 3, 2019 at 11:29 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JIS001
  • CAR REPAIR CONTRIBUTOR
  • 3,412 POSTS
Hello and welcome to 2CarPros. Based on what you mentioned I do not believe it will work since your trying to put a transmission on from a bigger engine. The transmission control module is already set up for the 4 cylinder.

You can also call the parts department at your local GM dealership and give you the part numbers to see if it will fit. I highly doubt it will fit.
Aug 4, 2019 at 1:05 AM
Advertisement
Avatar
AMANDA KAY FORTIN
  • MEMBER
  • 2 POSTS
Can the transmission control module be swapped too, in order to fix that problem? Or is that not possible?
Aug 4, 2019 at 2:09 AM
Avatar
STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
I would call a wrecking yard they have software they will tell you what year fits what. Please let us know if you need anything else to get the problem fixed.
Aug 6, 2019 at 11:37 AM