P0777 GMC - Clutch Pressure Control Solenoid 2 Stuck On
P0777 GMC 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
How do I fix code P0777 GMCCheck the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
There is a factory service bulletin for the following GMC Models:
2007-2009 GMC Acadia
GMC Factory Service Bulletin OBDII Code P0777
Cost of diagnosing the P0777 GMC code
Labor: 1.0The cost of diagnosing the P0777 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission shift shock
P0777 Gmc DescriptionThe 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.
P0777 GMC More InformationNeed more information on how to fix the P0777 GMC code?
Get Access to Factory Service Manuals
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