Chevrolet Silverado / GMC Sierra. Service manual — part 985

Fig. 486: Control Valve Assembly Bolts
Courtesy of GENERAL MOTORS CORP.

12. Install 11 control valve assembly bolts (1) and 4 control valve assembly bolts (2).

Tighten: Tighten the bolts to 12 N.m (108 lb in).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 487: Manual Shift Shaft Detent Spring
Courtesy of GENERAL MOTORS CORP.

13. Install the manual shift shaft detent spring (2) onto the main valve body (4).

14. Make sure the pin of the manual shift shaft detent spring (2) engages the slot of the IMS and

the detent spring roller rests on the detent lever (3).

15. Install 2 manual shift shaft detent spring bolts (1).

Tighten: Tighten the bolts to 12 N.m (108 lb in).

WIRING HARNESS INSTALLATION

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Tools Required

J 44247 Internal Wiring Harness Installer. See Special Tools.

Installation

Fig. 488: Using J44247 To Install Internal Wiring Harness Connector
Courtesy of GENERAL MOTORS CORP.

1. Install the internal wiring harness connector by hand into the transmission case.

2. Using J 44247 (2), install the connector of the internal wiring harness (1) into the

transmission case. See Special Tools. The 4 tabs on the wiring harness connector should

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

snap into place.

3. Make sure the wiring harness connector is securely in place.

Fig. 489: Identifying Main valve Body Solenoids, Switches & Harness
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado