Shifting problems,how to fix

Buick Regal, Century and Park Avenue as well as the Rendezvous and Lesabre.
Ask our auto mechanics for help to all your Buick questions now.

Shifting problems,how to fix

Unread post by Guest » Tue Jun 09, 2020 5:14 pm

I have a 2003buick la saber 3800serirs II , and it loading shifting ,put it I 1st gear to take off, I shift to second and if won't get the next gear
Is it , vacuum control module,shifting sensor

User avatar
Posts: 2459
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: Shifting problems,how to fix

Unread post by carriedi » Thu Jun 11, 2020 8:11 am

I am not understanding... what happens when you just put it in drive? It is an automatic, right? Why do you put it in first and then shift into second?

the transmission should be a computer controlled trans.

Have you checked your trans fluid level? If it's very low you may be running it out of fluid.

you should have your vehicle scanned. See if there are any trans codes. Scan the trans to see what the pressures are and what is happening when you drive it.

If it works in first gear, can you get it going up fast enough to put it into drive and skip second? Don't over rev the engine but get it up to a speed that third gear would drive at. If the trans continues after that then second gear may be gone. Need a trans rebuild.

  • Similar Topics
    Last post