Hi,
We are having problems with our 2004 Buick Lesabre taking a long time to shift. Once it shifts it runs great. You have to rev it at a high rpm, and then back down on it and it will shift. It almost seems like something is not opening up in order to allow it to shift into gear. Does this sound crazy? Someone told us it was possibly a bad modulator or sensor. How much do these cost, is it hard to get at, and could my husband do it himself?
Thanks,
Laurie
2004 Buick Lesabre Transmission Shifting Hard
Re: 2004 Buick Lesabre Transmission Shifting Hard
If your Buick has a vacuum modulator, it is on the drivers side front of the transmission. Open the hood and look down between the radiator and transmission. It would have a vauum line going to it. But i do not think your car has one.
This is old technology that used to cause late shifting on old cars. Todays cars are electronically controlled. You are describing a transmission slip.
You can try to do a fluid and filter change, that may help. But most likley the transmission needs to removed and repaired. Could be a problem in the valve body, or it is just worn out and needs an overhaul.
This is old technology that used to cause late shifting on old cars. Todays cars are electronically controlled. You are describing a transmission slip.
You can try to do a fluid and filter change, that may help. But most likley the transmission needs to removed and repaired. Could be a problem in the valve body, or it is just worn out and needs an overhaul.
Be sure to check the Similar Topics down this page for more help.
transmission makes Buick stall when slowing down
93 buick century 3300 engine stalls at traffic light. like a stick shift when clutch is not pushed in. dtc code-39 torque converter clutch err, quad driver module at fault.
Re: transmission makes Buick stall when slowing down
When you have a quad driver code, that usually means you need to replace the computer. The torque converter clutch (TCC) sticking on will cause the car to die out as you come to a stop, especially if it has been driven at higher speeds. Normally that requires replacement of the TCC solenoid, and/or the wiring harness inside the transmission.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+
In the automotive industry for 20+
-
- Similar Topics
- Replies
- Views
- Last post
-
- 1 Replies
- 8071 Views
-
Last post by carriedi
Fri Sep 26, 2014 9:45 pm
-
- 1 Replies
- 7755 Views
-
Last post by carriedi
Tue Dec 30, 2014 10:31 pm
-
- 1 Replies
- 12382 Views
-
Last post by carriedi
Thu Jun 11, 2020 8:11 am
-
- 3 Replies
- 10379 Views
-
Last post by carriedi
Tue Jul 04, 2023 1:03 am
-
- 1 Replies
- 15997 Views
-
Last post by carriedi
Fri Nov 30, 2018 10:45 am