Chevrolet Silverado / GMC Sierra. Service manual — part 1719

Fig. 54: View Of Auxiliary Battery Negative Cable & Cable Ground Terminal Bolt
Courtesy of GENERAL MOTORS CORP.

2. Position the auxiliary battery negative cable ground terminal to the left cylinder head and

install the bolt.

Tighten: Tighten the bolt to 25 N.m (18 lb ft).

3. Connect the auxiliary battery negative cable. Refer to Battery Negative Cable

Disconnection and Connection (w/Single Battery) or Battery Negative Cable

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

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

BATTERY POSITIVE CABLE REPLACEMENT (4.3L)

Removal Procedure

Fig. 55: View Of Under Hood Junction Block Cover
Courtesy of GENERAL MOTORS CORP.

1. Disconnect 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

2008 Chevrolet Silverado 1500

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

Connection (w/Dual Batteries).

2. Remove the under hood junction block cover.

Fig. 56: 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. 57: View Of Positive Battery Cable Connector & (UBEC)
Courtesy of GENERAL MOTORS CORP.

5. Remove the positive battery 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