Jump to content
Forums Gone... but not forgotten!
Pontiac of the Month

64 kiwi boni's 1964 Bonneville

2023 February
of the Month

  • Welcome!

    Welcome to Forever Pontiac, where we keep the memory of Pontiac alive with great discussion, maintenance tips, restoration/modification progression "blogs" and help from professional & DIY mechanics. Also, wonderful competitions that occur regularly. Please register for an absolutely free account to join in!

Trans shifting hard

Recommended Posts

So my dad had mentioned that the car had been shifting kinda hard when I first got it back. I told him I would drive it and what not see if i noticed it. Well I have noticed it but have not had time to post. it seems 1st to 2nd is ok little hard. 2nd to 3rd really hard. 3rd to 4th somewhat hard. they are not the nice smooth shifts I had gotten when the car was brand new. there is only 20,000 on the car. Under low RPM shifting less the 2K they are the way i stated. If you have it shift around 3-4K its better but not completely

Any ideas?

I will be taking it to the dealer when I/my dad/ his Gf have time to take it there and get a rental

Link to comment
Share on other sites

Since it's 20K, change the trans fluid and filter, can't hurt.

Any SES codes? My trans shifted really hard when I forgot to connect my IAT sensor on my short ram once. Gave off a code. That's a possibility.

Link to comment
Share on other sites

It's probably not gonna throw any codes your OBDII scanner is going to pick up. The trans has it's own module and stores its own codes (thanks GM... :dancingpontiac: ). I have a very similar problem, and the dealer is probably going to tell you the same thing they told me, "It's no different than any other G6 we've driven." :bacon:

Link to comment
Share on other sites

When i hit a huge ass bump my trans shifts unlike i've ever felt anything shift before. Shut it off for a while then start it up again and it works fine.

And chris wtf? 20k... I got 91k and still running stock filter and fluid. Doing it every 20k miles is just a waste of money.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Tired of these Ads? Purchase Enhanced Membership today to remove them!
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.