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HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 276 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - HYBRID (LZ1) - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSTHROTTLE BODY ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE
2009 Chevrolet Tahoe Base, 4.8 C

Installation Procedure

2009 Chevrolet Tahoe Base, 4.8 CSECTION Installation Procedure
WARNING: This page is about a different car, the 2010 GMC Yukon, 2010 Chevrolet Tahoe, and 2010 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Throttle Body Assembly
    GM1401966Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW throttle body gasket to the intake manifold. Align the tab of the gasket with the notch in the manifold.
    2. CAUTION: Refer to Fastener Caution .
  2. Install the throttle body (508), bolts (538), and nuts (507).

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

    3. Fig 2: View Of Engine Wiring Harness Electrical Connectors & Clip
    GM1960882Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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