P0752 BUICK 1-2 Shift Solenoid Valve Performance No Second or Third Gear
Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty 1-2 Shift Solenoid valve– 1-2 Shift Solenoid valve harness or connectors– 1-2 Shift Solenoid valve circuit is open or shorted Tech notes When the a transmission solenoid is stuck