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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROL SYSTEM - 8.1L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSTHROTTLE BODY ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE

2006 Chevrolet Suburban K2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban K2500, 6.0 USECTION Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Fig 1: Throttle Body And Gasket

Courtesy of GENERAL MOTORS CORP.

Install a NEW throttle body gasket.
Install the throttle body.
NOTE: Refer to Fastener Notice in Cautions and Notices.
Install the throttle body nuts.
Tighten: Tighten the nuts to 10 N.m (89 lb in).

Fig 2: View Of Generator, Injector Harness, Ignition Coil Harness, ETC & Purge Valve Solenoid Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Connect the throttle actuator motor electrical connector (5).
Install the intake air resonator. Refer to Intake Air Resonator Replacement .
Connect a scan tool in order to test for proper throttle-opening and throttle-closing range.
Operate the accelerator pedal and monitor the throttle angles. The accelerator pedal should operate freely, without binding, between a closed throttle, and a wide open throttle (WOT).
Verify that the vehicle meets the following conditions:
- The vehicle is not in a reduced engine power mode.
- The ignition is ON.
- The ignition is OFF.

RENDER: 1.0x

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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.