Transmission swap

AMANDA KAY FORTIN

MEMBER
1999 PONTIAC GRAND AM
2.4L
4 CYL
2WD
AUTOMATIC
160,000 MILES

I am wondering if I can replace the transmission in my car listed above with a transmission from an 2003 Grand Mm v6.

Saturday, August 3rd, 2019 AT 11:29 PM

3 Replies

JIS001

MECHANIC
3,408 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.

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Sunday, August 4th, 2019 AT 1:05 AM

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?

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Sunday, August 4th, 2019 AT 2:09 AM

KEN L

MASTER CERTIFIED MECHANIC
42,883 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.

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Tuesday, August 6th, 2019 AT 11:37 AM