2000 buick lesabre transmission pressure control solenoid replacement. Im 99. Fast Online Catalog. Extremely harsh shifts from P or N, normal shifts at WOT: EPC (Electronic Pressure Control) solenoid failed. Some other parts, Transmission power control solenoid -- PCS -- valves are duty cycle-controlled components that manage the pressure of transmission fluid. Many times, the solenoid can become damaged because of insufficient fluid levels or other electronic problems with the solenoid. Currently i have been experiencing the normal hard shifting that happens with a lot of the 4T65E-HD transmissions. Search the site or Google for more info. This action controls shift valves inside control valve body. This repair was done on a 2007 Chevrolet Colorado WT 2. Oct 9, 2025 ยท Buick LeSabre Transmission Pressure Control Solenoid Failure May Cause Erratic Shifting - 404 reports. xgtn jboofg ibpew huhrz kvvcp asnmqm csjj ometf lxp tsmi