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1. Partially drain the cooling system in order to allow the hoses at the throttle body to be removed. Refer to Draining and Filling Cooling System in Engine Cooling. 2. Remove the air intake duct. Refer to Air Cleaner Resonator Outlet Duct Replacement . Fig. 57: View Of Throttle Body cleaning solvents of any type. IMPORTANT: An eight digit part identification number is stamped on the throttle body casting. Refer to this number if servicing, or part replacement is required. IMPORTANT: Cover or plug any openings when servicing the throttle body in order to prevent possible contamination.
2004 Hummer H2 2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2
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