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Chevrolet Silverado / GMC Sierra. Manual - part 1069
Torque converter clutch pulse width modulation (TCC PWM) solenoid (5)
3-2 control solenoid (6)
Fig. 167: View Of TCC PWM Solenoid & Retainer
Courtesy of GENERAL MOTORS CORP.
5. Remove the TCC PWM solenoid retainer.
6. Remove the TCC PWM solenoid in order to access one of the TCC solenoid bolts.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 168: View Of Pressure Control Solenoid & Components
Courtesy of GENERAL MOTORS CORP.
7. Remove the pressure control solenoid retainer bolt (364A) and retainer (378).
8. Remove the pressure control solenoid (377).
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 169: View Of TCC Solenoid Bolts & Valve Body Bolts
Courtesy of GENERAL MOTORS CORP.
9. Remove the TCC solenoid bolts and the valve body bolts which retain the internal wiring
harness.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 170: View Of TCC Solenoid & Wiring Harness
Courtesy of GENERAL MOTORS CORP.
10. Using J 28458 , release the pass-through electrical connector from the transmission case.
1. Use the small end of the J 28458 over the top of the connector.
2. Twist in order to release the four tabs retaining the connector.
3. Pull the harness connector down through the transmission case.
11. Remove the TCC solenoid (with O-ring seal) and wiring harness.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
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