Index Hummer Hummer H3 - service repair manual 2006-2009 year
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Hummer H3. Manual - part 509
Fig. 72: Fuel Rail Bolts Courtesy of GENERAL MOTORS CORP.
3. Install NEW fuel injector lower O-ring seals onto the injectors.
4. Lubricate the NEW O-ring seals with clean engine oil.
2008 Hummer H3
2008 ENGINE Engine Mechanical - 5.3L - H3