Erratic Shifting of the Automatic Transmission on Pontiac Grand Prix GTP

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: 127,885 (94,000–157,657)
5 model years affected: 1998, 2000, 2001, 2002, more2004
7 people reported this problem
2 people shared problem details
Sometimes after going really fast in the car, when the car comes to the stop then go again he car seemed to move but the gears are like stuck and making really weird noise
my transmission intermittently shifts hard in all gears.
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