Chevrolet Silverado / GMC Sierra. Service manual — part 1758

Fig. 206: View Of Auxiliary Battery Relay & Nuts
Courtesy of GENERAL MOTORS CORP.

1. Install the auxiliary battery relay and nuts.

Tighten: Tighten the nuts to 9 N.m (80 lb in).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

Fig. 207: View Of Battery Cable Nuts, Retainers & Bolts
Courtesy of GENERAL MOTORS CORP.

2. Install the auxiliary battery positive cable to the auxiliary battery relay.

3. Install the auxiliary battery positive cable nut (4) to the battery relay stud.

Tighten: Tighten the nut to 9 N.m (80 lb in).

4. Position the auxiliary battery positive cable boot (5) to the auxiliary battery relay stud.

5. Connect the auxiliary battery positive cable electrical connector (1) to the battery relay.

2008 Chevrolet Silverado 1500

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

Fig. 208: View Of Battery & Battery Cable Fasteners
Courtesy of GENERAL MOTORS CORP.

6. Install the auxiliary battery positive cable to the auxiliary battery relay.

7. Install the auxiliary battery positive cable nut (6) to the battery relay stud.

Tighten: Tighten the nut to 9 N.m (80 lb in).

8. Position the auxiliary battery positive cable boot (5) to the auxiliary battery relay stud.

9. Connect 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

2008 Chevrolet Silverado 1500

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

Disconnection and Connection (w/Dual Batteries).

ENGINE GROUND STRAP REPLACEMENT (4.3L)

Removal Procedure

Fig. 209: View Of Ground Strap Bolt
Courtesy of GENERAL MOTORS CORP.

1. Remove the ground strap bolt from the rear of the left cylinder head.

2. Reposition the ground strap from the cylinder head.

2008 Chevrolet Silverado 1500

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