Erratic Shifting of the Automatic Transmission on Buick LeSabre

The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.

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Average mileage: 121,549 (13,400–223,879)
11 model years affected: 1991, 1995, 1997, 1998, more1999, 2000, 2001, 2002, 2003, 2004, 2005
125 people reported this problem
87 people shared problem details
2005 Buick LeSabre130,000
My 2005 lesabre transmission shifts hard, you feel the shifting from first to seconard and to final shift, is this the pressure control switch. and is it expansive to fix. thank you frank
2002 Buick LeSabre120,000
hard shifting first and second gear only after the car has been running for 20 mins. If I turn the car off for a few mins. The car shifts ok for about 20 mins. Then problem starts again.
not changing gears smoothly can feel a slight bump
It started around 125000 miles. It only happens when it is cold (usually below freezing). When I shift into reverse to back out of the garage the first time in the morning it really goes into gear with a wham. After that it usually doesn't do it again until next morning. I don't know if it is doing any harm or not. It hasn't been fixed.
My 2001 Lesabre jerks as it shifts, but it doesn't always happen. If it does it, it continues to do it. But the next time it might work fine. I have learned to let off the gas and let it slowly shift into the next gear. My husband does not do that so when he drives it really chugs into gear. I have no idea other than what I have read about the transmission solenoid being the problem. But I think that it is strange that it does not always do it. I was quoted $640 to replace the shift solenoid.
2000 Buick LeSabre120,000
Took a year to diagnose as the shuddering sensation and hard shift was intermittent... I finally found the possible cause on internet to take to the mechanic... 5 hour labor job for a faulty part that should have been recalled... listed on NHSTA website as a bad seal on solenoid allows in dirt and fails
2005 Buick LeSabre40,000
Hard shift once the car reaches normal temperature.
2005 Buick LeSabre52,000
Just bought this car as is.Seems to have a shifting issue between 1st& 2nd Gears.Their is a little nudge or glitching of the gears,not very smooth.At higher speed (3rd 4th )you can't tell if their is any issues,it seems to be smooth.Going to have a transmission place check it out.Report later the issue & cost.
2005 Buick LeSabre53,000
transmission slipping from 2nd to 3rd gear. Banging into gear
2003 Buick LeSabre147,000
The automatic transmission jerks slightly with normal gear transitions; jerks harder when stringly accelerating.
2005 Buick LeSabre140,110
automatic trams has a slight bump into second and a bigger bump from second to third. What is causing this
erratic shifting; shifting too early into 2nd and 3rd; and the transmission does not properly downshift when speed is reduced
2001 Buick LeSabre92,000
occasional heavy shifting
2004 Buick LeSabre78,000
slight hard shift from first to second but from second to third feels like the rear end of the car is about to clunk out. only after driving around for a few miles does it starts and the problem restarts when the car is off for a while.
2001 Buick LeSabre126,000
The problem is this; the car shifts okay, meaning it shifts when it's supposed to and fairly smooth, but there is a definite "clunk" after it's shifted into the next higher gear. This is my wife's car so I don't drive it as much as she does so I don't know when it actually started, but from my experience on a recent trip to Florida, it only does it when hot. And the problem will go away (if only briefly) if you shut the car off and let it cool down for 30 minutes or so. We just returned home so I haven't had a chance to check in to repairing it, either myself or paying to have it done. Hopefully it's a job I can do myself.....
After about 30 or 40 minutes of driving, my car jerks and shakes. I was told that it was a problem with the torque converter and paid $1,600 to have it repaired. It is still doing the same thing and I was told that having the transmission reprogrammed will repair this problem. I am bringing the car back in a few days to get this done, but I am very frustrated that I paid so much and there is no change.
2005 Buick LeSabre70,000
My transmission on my car is shifting hard after driving for about 30 minutes and then start the shift hard and then once I cut it off and started back up its driving fine Indian 30 minutes later start doing the same thing
2000 Buick LeSabre210,000
The car jerk when I take off
2004 Buick LeSabre116,258
The problem with transmission shifting is erratic. However, the first shift is a hard thump, second shift is less hard shift, and the third shift is much less hard. It appears to be transmission pressure control switch or, perhaps, another type of shifting problems.
2005 Buick LeSabre98,000
Car shifts hard from 1st to second, until finally it stopped shifting at all.
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