P0777 CHEVROLET – Clutch Pressure Control Solenoid 2 Stuck On

P0777 CHEVROLET Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Transmission shift shock

P0777 CHEVROLET Possible Causes

Low transmission fluid level,Dirty transmission fluid,Faulty Clutch Pressure Control Solenoid 2,Clutch Pressure Control Solenoid 2 harness is open or shorted,Clutch Pressure Control Solenoid 2 circuit poor electrical connection

P0777 CHEVROLET Description

The clutch pressure control (PC) solenoid 2 is part of the control solenoid (w/body and TCM) valve assembly and is not serviced separately. The clutch PC solenoid 2 flows fluid to the 3-5-R clutch when commanded OFF and exhausts fluid when commanded ON. The clutch PC solenoid 2 regulates the transmission fluid pressure to the 3-5-R clutch. The Transmission Control Module (TCM) calculates gear ratio based on data from the automatic transmission input speed sensor (ISS) and the output speed sensor (OSS). The TCM compares the known transmission gear ratio to a calculated gear ratio for each commanded gear.