SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 445 (ENGINE CONTROLS AND FUEL - 4.4L - INTRODUCTION)REPAIR INSTRUCTIONSTHROTTLE BODY ASSEMBLY REPLACEMENT
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Throttle Body Assembly Replacement

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Throttle Body Assembly Replacement
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Throttle Body Assembly
GM1644925Courtesy of GENERAL MOTORS CORP.
Callout Component Name

Preliminary Procedures

  1. Remove the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .
  2. Remove the hood assembly. Refer to Hood Replacement .
  3. Remove the front and rear sections of the supercharger inlet duct assembly. Refer to Supercharger Inlet Duct Assembly Replacement .
  4. Remove the rear inlet duct seal. Refer to Intake Air Duct Seal Replacement .
  5. Disconnect the electrical connector from the throttle body assembly.
1 Throttle Body Assembly Bolt (Qty: 4)
CAUTION: Refer to Fastener Caution .

Tighten:  10 N.m (89 lb in)
2 Throttle Body Assembly
CAUTION: Do not use a cleaner which contains methyl ethyl ketone. This extremely strong solvent may damage components and is not necessary for this type of cleaning.
Use a carburetor cleaner in order to remove deposits.
Refer to the instructions provided with the cleaner.

Tip:  It is not necessary to remove the supercharger to remove and/or replace the throttle body assembly.
3 Throttle Body Gasket

Procedure

  1. Always install a NEW throttle body gasket.
  2. Perform the Throttle Body Learn procedure. Refer to Throttle Learn .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

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

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.