Ford/Mazda P0771 solenoid E performance code

The biggest issue that there is with diagnosing this code is related to solenoid function, identification and location on the valve body. Refer to Figure 1 for a solenoid application chart and a clutch application chart. It is important to thoroughly road test the vehicle and verify which gears are operating and which are not, as solenoid performance codes may set from internal component problems. For instance, the P0771 can set from Solenoid E not operating mechanically, but often it is because the torque converter clutch is not holding or the bushings in the stator are worn out.

If this solenoid swap did not solve the problem, the problem could be the lock-up valve in the valve body, the stator bushings leaking in the pump or a bad torque converter clutch. The 

solenoid identification and component application can be used for diagnosing other solenoid performancecodes. Figure 3 provides the additional valve body used in the 5 speed version of the 4F27E.