Question about 2003 Chevrolet Impala
Faulty Pressure Control Solenoid, GM knows about it, there are TSB about it. Harsh shifts when hot. The best and cheapest thing to do is call GM and complain. Their number is 1-800-222-1020. These transmissions are known to be defective but have yet to be recalled. I called today 6-21-2010. Ask for it to be recalled. If they get enough calls they will. Maybe. They acted like they knew nothing about it which I do not like being lied to.
Posted on Jan 24, 2011
SOURCE: my 2003 impala was diagnosed
code po742 torque converter clutch circuit stuck on conditions. code p1811 maximum adaptive and long term shift conditions.see this code transmission fluid is low and contaminated.change transmission fluid and filter see if this help your problem.you need to fix this problem fast transmission is not getting enough fluid to work.
Posted on Apr 02, 2011
The pressure control solenoid is inside the transmission under the pan on the drivers side. To replace it you will need a lift and a trans jack. It is really hard to do on the ground because you have to remove the sub-frame from the car. If you are not familiar with trans components and removal you may be better off taking it to a shop. You can do more harm than good. Good Luck
Posted on Jul 09, 2009
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