Chevrolet Silverado / GMC Sierra. Service manual — part 1730

Fig. 98: View Of Under Hood Junction Block Cover
Courtesy of GENERAL MOTORS CORP.

12. Install the underhood junction block cover.

13. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .

14. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and

Connection (w/Single Battery) or Battery Negative Cable Disconnection and
Connection (w/Auxiliary Battery) or Battery Negative Cable Disconnection and
Connection (w/Dual Batteries).

AUXILIARY BATTERY POSITIVE CABLE REPLACEMENT (6.2L)

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Removal Procedure

Fig. 99: View Of Under Hood Junction Block Cover
Courtesy of GENERAL MOTORS CORP.

1. Disconnect the auxiliary battery negative cable. Refer to Battery Negative Cable

Disconnection and Connection (w/Single Battery) or Battery Negative Cable
Disconnection and Connection (w/Auxiliary Battery) or Battery Negative Cable
Disconnection and Connection (w/Dual Batteries).

2. Remove the underhood junction block cover.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 100: View Of Junction Block & Retainers
Courtesy of GENERAL MOTORS CORP.

3. Lift the junction block retainers from the locked position (3) and rotate the retainers to the

open position (1).

4. Remove the junction block.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 101: View Of Positive Battery Cable Connector & (UBEC)
Courtesy of GENERAL MOTORS CORP.

5. Remove the auxiliary battery positive cable connector (1) from the underhood bussed

electrical center (UBEC).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado