Erratic Shifting of the Automatic Transmission on Oldsmobile Regency

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 123,400 (86,000–201,000)
2 model years affected: 1997, 1998
8 people reported this problem
Viewing 1 - 3 of 3 comments
shifted hard first 2 shifts. went to aamco. wanted to replace transmission. took to my mechanic. problem was transmission vacuum line was broken. 15 minute fix. lot better than aamco $2400
will pop out of drive and any stop
Transmission shift really hard after 200 degrees. Not fixed