Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1257 (ENGINE CONTROLS AND FUEL - 4.3L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSTHROTTLE BODY ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Installation Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra and 2008 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View of Throttle Body, Gasket & Bolts

Courtesy of GENERAL MOTORS CORP.

Install a NEW throttle body gasket into the upper intake manifold.
Place the throttle body onto the upper intake manifold.

NOTE: Refer to Fastener Notice .

Install the throttle body bolts.
Tighten: Tighten the bolts to 10 N.m (89 lb in).

Fig 2: View Of Engine Wiring Harness & Components

Courtesy of GENERAL MOTORS CORP.

Connect the engine wiring harness electrical connector (2) to the throttle body.
Install the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .

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.