I have a 2005 impala I bought new. a couple years ago I started noticing the transmission slipping when starting from a stop . After that it seems to be ok. flex plate was replaced about 3 years ago due to a crack in it. I only have 59,000 mile on it and the problem is getting worse. Also the traction control light has been coming on periodically for a long time and is now coming on all the time.
If the transmission is full of fluid. please go here to read the problems with the pressure control module--http://repairpal.com/transmission-pressure-control-solenoid-failure-may-cause-erratic-shifting-593, Hope this helps, chevy impala pcm may cause erratic shifting.
SOURCE: 2001 impala will not shift into overdrive
your overdrive clutch hub has gone out/worn out.
It can be replaced or you could have the whole transmission re-built or replaced with a low mileage one from the salvage yard , etc at a lower cost..(which is what I did)
This is common on these trannys.
SOURCE: 2005 Impala abs & traction control problem
2005 Impala it turn off some times when I am coming to a complete stop or when I am slowing down but it starts right back up with no problem can you help me
SOURCE: 2003 Chevy Impala transmission
my 03 impala only jerks hard when the engine is cold or slightly cold. when its warm its fine. i never had it looked at before.
SOURCE: 2005 impala ls the abs light and the traction control light comes
You'll need to have the codes read from the computer. You will have a code that indicates one of the front wheel sensors is bad. This could be the case, but they are very expensive as they are built into the wheel bearing assemblies. It is more likely that the wiring harness between the frame and the part of the front spindle that holds the harness, has broken internally. It is a very common problem and can be repaired with a new wiring harness section or by tracking down the fault and repairing it.
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