Problem with my 2004 Buick Lesabre
Mileage = 57,900
Engine size = 3.8 6cyl
dash lights = none
GM Computer codes = no codes
Repair work done prior = transmission flush and filter change
work done to repair this problem = none
How found us = just looking
tip/donation yes
GM tech = SF
question = have an 04 Buick Lesabre shifts rough sometimes from 1st to 2nd
feels like a slight shudder, been told need another transmission, had it
flushed,has helped some, has 225 60r16 tires when door panel says 215 70r
15 tires,some models came with the 225 option, was wondering does or can
computer shift points need to be changed, I've heard with different tires
computer needs to be reset or it throws shifts, speedometer and odometer
off.
The flushing showed no signs of debris in the pan, was wondering does it
need an additive or do some Buick just tend to have that noticeable shift,
tends to do more if I push the gas harder than normal.
SF:
Hello and thank you for the tip / donation. The tire size concern would not
have anything to do with this shifting, although it would be a good idea to
have the reprogramming done. This would need to be done with a dealer
scan tool.
There are a few possibilities for the shifting concern. First, since the flush
seemed to help, i would suggest doing that again, but use the newest GM
trans fluid - Dextron 6.
This is a synthetic fluid, and may help further. Do a complete flush, then
drive a few hundred miles to see if helped.
Next, may be a problem in what is called the 1-2 accumulator piston, seal or
housing. This is accessed by removing the pan,
and the housings 4 bolts. The 2-3 accumulator is also in this housing. A
good trans. Tech would be able to check this with no problem. More likely is
a problem with the 2nd clutch assembly.
Trans would need to come out and taken apart for this. There is a service
bulletin for this issue. You may even want to call your local
Buick dealer, or Buick customer assistance.
They may be able to offer some help with this problem since the car is an 04,
and there is a service bulletin.
Mileage = 57,900
Engine size = 3.8 6cyl
dash lights = none
GM Computer codes = no codes
Repair work done prior = transmission flush and filter change
work done to repair this problem = none
How found us = just looking
tip/donation yes
GM tech = SF
question = have an 04 Buick Lesabre shifts rough sometimes from 1st to 2nd
feels like a slight shudder, been told need another transmission, had it
flushed,has helped some, has 225 60r16 tires when door panel says 215 70r
15 tires,some models came with the 225 option, was wondering does or can
computer shift points need to be changed, I've heard with different tires
computer needs to be reset or it throws shifts, speedometer and odometer
off.
The flushing showed no signs of debris in the pan, was wondering does it
need an additive or do some Buick just tend to have that noticeable shift,
tends to do more if I push the gas harder than normal.
SF:
Hello and thank you for the tip / donation. The tire size concern would not
have anything to do with this shifting, although it would be a good idea to
have the reprogramming done. This would need to be done with a dealer
scan tool.
There are a few possibilities for the shifting concern. First, since the flush
seemed to help, i would suggest doing that again, but use the newest GM
trans fluid - Dextron 6.
This is a synthetic fluid, and may help further. Do a complete flush, then
drive a few hundred miles to see if helped.
Next, may be a problem in what is called the 1-2 accumulator piston, seal or
housing. This is accessed by removing the pan,
and the housings 4 bolts. The 2-3 accumulator is also in this housing. A
good trans. Tech would be able to check this with no problem. More likely is
a problem with the 2nd clutch assembly.
Trans would need to come out and taken apart for this. There is a service
bulletin for this issue. You may even want to call your local
Buick dealer, or Buick customer assistance.
They may be able to offer some help with this problem since the car is an 04,
and there is a service bulletin.
