1993 Pontiac GA GT Transmission

[ald3]

I have a automatic transmission problem that developed on the way to work this morning. I noticed that the tranmission would not shift from second to third gear. I dropped the shifter manualy to second and back to third and it shifted. I went to pass another vechicle and kicked in the passing gear and the transmission would not whift to third gear no matter what i did. I did pull over and check the fluid levels. Everything looked fine. Could anyone offer some advise. Thanks

[aaron1234]

i have the same car do what im plannig , swap that shitty tranny out for a 4 speed sun bird tranny and get some of that hp to the ground ....that 3 speed was the biggest mistake gm made with that car

[gebster76]

before changing or checking the tranny it almost sounds like a catalytic converter problem. Have that checked first!

[matt919]

i just replaced my 3-speed auto in my 1993, and it can't be replaced by a 4-speed.

[Woohan]

Originally Posted by matt919

i just replaced my 3-speed auto in my 1993, and it can't be replaced by a 4-speed.

That is untrue..... though this post is old I had to answer.

The 93 GA with a 3300 can have a 4 speed very easy actually.
Parts needed
440T4/4T60 from a 3.1L (w/3.33:1 fr)
Drive axles from the 94 GA with 4spd (for your abs)
Mounts from a 94-up N body
33 tooth driver gear from Lumina 3.4L DOHC
37 tooth driver gear from Lumina 3.4L DOHC
Console/shifter/cable from 94-up achieva with 4spd
a few adjustments to the mounts and that basically it.