Chevrolet Silverado / GMC Sierra. Manual — part 1066

Transmission fluid pressure switch (1)

1-2 shift control solenoid (2)

2-3 shift control solenoid (3)

Pressure control solenoid (4)

torque converter clutch pulse width modulation (TCC PWM) solenoid (5)

3-2 control solenoid (6)

Fig. 156: View Of Pressure Control Solenoid & Components
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

4. Remove the pressure control solenoid retainer bolt (364A) and retainer (378).

5. Remove the pressure control solenoid (377).

Fig. 157: View Of 1-2 Shift Solenoid & Retainer
Courtesy of GENERAL MOTORS CORP.

6. Remove the 1-2 shift solenoid retainer (395) and the 1-2 shift solenoid (367A).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 158: View Of 2-3 Shift Solenoid & 2-3 Shift Valve
Courtesy of GENERAL MOTORS CORP.

7. Remove the 2-3 shift solenoid retainer (395) and the 2-3 shift solenoid (367A).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 159: View Of 3-2 Control Solenoid & 3-2 Control Valve
Courtesy of GENERAL MOTORS CORP.

8. Remove the 3-2 control solenoid retainer (395) and the 3-2 control solenoid (394).

Installation Procedure

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado