Chevrolet Silverado / GMC Sierra. Service manual — part 1070

Fig. 171: View Of TCC Solenoid & Wiring Harness
Courtesy of GENERAL MOTORS CORP.

12. Inspect the TCC solenoid and wiring harness for the following defects:

Damage

Cracked connectors

Exposed wires

Loose pins

Installation Procedure

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado

Fig. 172: View Of TCC Solenoid & Wiring Harness
Courtesy of GENERAL MOTORS CORP.

1. Install the wiring harness and TCC solenoid with a new O-ring seal to the transmission.

2. Install the pass-through electrical connector to the transmission case.

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado

Fig. 173: View Of TCC Solenoid Bolts & Valve Body Bolts
Courtesy of GENERAL MOTORS CORP.

3. Install the valve body bolts which retain the internal wiring harness and install the TCC

solenoid bolts.

Tighten:

Tighten the control valve body bolts to 11 N.m (97 lb in).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado

Tighten the TCC solenoid bolts to 11 N.m (97 lb in).

Fig. 174: View Of Pressure Control Solenoid & Components
Courtesy of GENERAL MOTORS CORP.

NOTE:

Be sure all solenoids are installed with the electrical
connectors facing the non-machined (cast) side of the valve
body; otherwise, the solenoids will bind against the
transmission case as the valve body bolts are tightened and
damage may occur.

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado