Hummer H2. Manual - part 1135

Tighten: Tighten the bolt to 16 N.m (12 lb ft).

6. Install the left hand catalytic convert. Refer to Catalytic Converter Replacement (Right Hand) in 

Engine Exhaust.  

7. Lower the vehicle.  

STARTER MOTOR RELAY REPLACEMENT 

Removal Procedure 

Fig. 39: Starter Motor Relay 

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

Courtesy of GENERAL MOTORS CORP.

1. Remove the underhood bussed electrical center (UBEC) cover.  

2. Remove the starter motor relay. Refer to Relay Replacement (Within an Electrical Center) or Relay 

Replacement (Attached to Wire Harness) in Wiring Systems.  

Installation Procedure 

Fig. 40: Starter Motor Relay 
Courtesy of GENERAL MOTORS CORP.

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

1. Install the starter motor relay. Refer to Relay Replacement (Within an Electrical Center) or Relay 

Replacement (Attached to Wire Harness) in Wiring Systems.  

2. Install the underhood bussed electrical center (UBEC) cover.  

STARTER MOTOR REPLACEMENT 

Removal Procedure 

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

Fig. 41: Battery Ground Negative Cable & Bolt
Courtesy of GENERAL MOTORS CORP. 

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure 

(Single Battery) .  

2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. 

Fig. 42: Transmission Cover Bolt 
Courtesy of GENERAL MOTORS CORP. 

3. Remove the engine protective shield. Refer to Engine Protection Shield Replacement .  

4. Remove the transmission cover bolt. 

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2