Hummer H2. Manual — part 1881
Fig. 676: EVAP Purge Solenoid, Bolt & Isolator
Courtesy of GENERAL MOTORS CORP.
8. Install the evaporative emission (EVAP) purge solenoid (708), bolt (710), and isolator (709).
Tighten: Tighten the solenoid bolt to 10 N.m (89 lb in).
2004 Hummer H2
2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2
FUEL RAIL AND INJECTORS INSTALLATION
Fig. 677: Fuel Injector Rail
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Fuel Rail Stop Bracket Installation Caution in Cautions and
2004 Hummer H2
2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2
1. Lubricate the NEW fuel injector O-ring seals with clean engine oil.
2. Install the O-ring seals onto the fuel injectors.
3. Install a new O-ring seal to the right side of the crossover tube.
4. Assemble the crossover tube and bolt to the right fuel rail.
5. Install the fuel rail, with fuel injectors, into the intake manifold.
Press evenly on both sides of the fuel rail until all of the injectors are seated in their bores.
6. Apply a 5 mm (0.2 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent to
the threads of the fuel rail bolts. Refer to Sealers, Adhesives, and Lubricants .
7. Install the fuel rail bolts.
Tighten:
1. Tighten the fuel rail bolts to 10 N.m (89 lb in).
2. Tighten the crossover tube right side retaining bolt to 3.8 N.m (34 lb in).
Notices.
IMPORTANT: DO NOT use the fuel injector O-ring seals again. Install NEW fuel injector
O-ring seals during assembly.
NOTE:
Refer to Fastener Notice in Cautions and Notices.
2004 Hummer H2
2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2
Fig. 678: Fuel Rail Stop Bracket & Bolt
Courtesy of GENERAL MOTORS CORP.
8. Install the fuel rail stop bracket and bolt.
Tighten: Tighten the fuel rail stop bracket bolt to 50 N.m (37 lb ft).
THROTTLE BODY INSTALLATION
2004 Hummer H2
2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2
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