Pressure Control Solenoid Valve 3 Stuck On
Table of contents
P0797 BUICK Possible Causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Pressure Control Solenoid Valve 3
- Pressure Control Solenoid Valve 3 harness is open or shorted
- Pressure Control Solenoid Valve 3 circuit poor electrical connection
How do I fix code P0797 BUICK?
Check 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.
Cost of diagnosing the P0797 BUICK code
The cost of diagnosing the P0797 BUICK 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.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Shift shock
P0797 BUICK Description
The Clutch Pressure Control (PC) solenoid 3 is part of the control solenoid valve assembly which has no serviceable components. PC solenoid 3 regulates transmission fluid pressure to the R1/4-5-6 regulator valve which controls pressure to the reverse and low clutch and the 4-5-6 clutch. The Transmission Control Module (TCM) calculates gear ratio based on the RPM signals from the automatic transmission input speed sensor (ISS) and the output speed sensor (OSS). The TCM compares the expected transmission gear ratio to the calculated gear ratio for each commanded gear.