How do I fix error code P0771?
What Repairs Will Fix P0771?
- Changing the transmission fluid and filter.
- Replace faulty solenoid.
- Repair or replace a faulty transmission pump.
- Repair or replace defective transmission valve body.
- Perform transmission flush to clean passages.
- Cleaning corrosion from connectors.
- Repairing or replacing wiring.
What does shift solenoid A and B do?
Shift solenoids are used to help create smooth gear shifts in the automatic transmission. The various shift solenoids control the brakes, bands, and clutches in the transmission, with the B solenoid varying depending on the make and model of the vehicle.
What does it mean when your transmission solenoid is stuck?
If the trouble code is telling us that it’s stuck or an electrical problem, it is most likely a wiring or shift solenoid problem. A lot of the shift solenoid codes could be solved by trying to make a transmission fluid replacement or a carry out a transmission flush.
Where is the shift solenoid on an automatic transmission?
When it’s time to shift, the transmission control unit sends out power or ground to the required shift solenoid, and it causes the solenoid to open and let the transmission oil flow into the valve body, which then shifts to the next gear. The Transmission shift solenoids are located inside the valve body of your automatic transmission.
How many volts does a transmission solenoid have?
The shift solenoids are spring loaded with a coil inside. It depends on the car, but there are normally has 12 volts to the solenoid all the time and the transmission control unit sends ground to the solenoid when it’s time to open and releases the pressure.
How much does it cost to replace a shift solenoid?
In the picture above, you see the shift solenoids located on the valve body. The shift solenoids are the tubes with yellow, green, and black colors. A single shift solenoid’s replacement cost is between 100$ to 350$ and a shift solenoid pack costs between 400$ to 700$, including transmission fluid, filter, parts, and labor work.