Removal Procedure

Disconnect the negative battery cable. Battery Negative Cable Disconnection and Connection (Dual Battery) .
Air Cleaner Assembly Replacement »Remove

Fig 1: Battery Positive Junction Block Cable

GM3620775

Courtesy of GENERAL MOTORS COMPANY

Open the battery fuse block cover.
Remove the battery positive junction block cable fasteners (1) and remove the battery positive junction block cable (3) from the battery fuse block (2).

Fig 2: Glow Plug Module

GM3620772

Courtesy of GENERAL MOTORS COMPANY

Disconnect the battery positive junction block cable connector (1) from the glow plug module (2).

Fig 3: Intake Heater Module

GM3620774

Courtesy of GENERAL MOTORS COMPANY

Remove the battery positive junction block cable fastener (1) and remove the battery positive junction block cable (2) from the intake heater module (3).
Remove the battery positive junction block cable (2) from the engine compartment.