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.Google+
Car Problem Reports
Chevrolet Impala Transmission Pressure Control Solenoid Failure May Cause Erratic Shifting
Chevrolet Impala Problem
Average Mileage: 108,991 mi (7,500 mi - 350,000 mi)
Visitor, 2005 Chevrolet Impala, 92,000 mi
once i am at a complete stop and i get ready to go the car will take a moment and then jerk. I have also found that i am having problems with it shifting to the next gear. We have had it checked several times with no resolution. I don't understand why this isn't being recalled it seems to me like i am not the only one with this problem
If I dont come to a complete stop and accelerated the gear takes a second to engage and causes the car to lurch forward suddenly with a slam making it feel like i was hit from behind.
Visitor, 2003 Chevrolet Impala, 80,000 mi
The transmission issue of shifting erratically just started but only when the car has been on the road for more then 30 minutest or so. Was checked out through a Chevrolet dealer and told it would cost $1000.00 to fix the solinoid issue. I would like to fix it myself.
Visitor, 2000 Chevrolet Impala, 146,000 mi
Car hesitates and bucks when I begin from a "rolling stop." If I COMPLETELY stop for about three seconds and THEN try to go, usually it will work fine if I start really slowly (can't gun this car at ALL anymore...). Sometimes, I can feel it shift down when I'm stopped for a bit longer. I'll get a hard shift while moving every now and then, but the worst problems are beginning from a short or rolling stop and trying to accelerate to turn. When I accelerate to turn, it will act like it's dying, then suddenly engage and go.
Visitor, 2003 Chevrolet Impala, 140,000 mi
Everytime my speedometer stops working on the dash my transmission stops changing gears I was wondering could this be an electrical problem or do I need to replace my computer
Visitor, 2005 Chevrolet Impala, 107,000 mi
transmission slippage in first gear. also, car struggles to get up to spead in first gear.
Visitor, 2003 Chevrolet Impala, 116,122 mi
from time to time my transmission acts as if it slipping and jerks from one gear to the next. has not had the problem fixed,because it just started.
Visitor, 2005 Chevrolet Impala
car has a hard pull sometimes when i pull off from a light and also takes a long time to shift gears
Erratic shifting took it to a transmission place and had the celenoid replaced
Visitor, 2002 Chevrolet Impala, 75,000 mi
on 2002 monte carlo shifting extremely hard feels like trani gonna fall out had valves and solenoid change called chevy they said there was nothing they could do there was no recall but now I am reading on computer its not only the montes that are having this problem it is alot of chevy vehicles love the car but have already fixed many thing on it it is a shame that chevy cant make a good product any more and it is rather sad that they wont fox these problems either