2009 Hummer H3 AlphaFACTORY OEM SERVICE PROCEDURE

Installation Procedure

    Fig 1: Throttle Body Assembly
    GM1401966Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW throttle body gasket (509).
  2. Install the throttle body (508).
  3. CAUTION: Refer to Fastener Caution .
  4. Install the throttle body bolts (538) and nuts (507).

    Tighten:Β  Tighten the bolts/nuts to 10 N.m (89 lb in).

  5. Fig 2: Air Cleaner Outlet Duct
    GM1897252Courtesy of GENERAL MOTORS CORP.
  6. Connect the engine wiring harness electrical connector (2) to the throttle body.
  7. Install the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct ReplacementΒ .
  8. Perform the throttle learn procedure. Refer to Throttle/Idle LearnΒ .
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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