SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1410 (ENGINE CONTROL SYSTEM - 4.2L (INTRODUCTION))REPAIR INSTRUCTIONSAIR CLEANER OUTLET RESONATOR REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Air Cleaner Outlet Resonator Assembly
    GM730135Courtesy of GENERAL MOTORS CORP.
  1. Install the air cleaner outlet resonator assembly (5) to the engine making sure of the following:
    • The crankcase ventilation hose (1) is connected to the valve cover port (2).
    • The air cleaner outlet resonator (5) is properly fit to the throttle body assembly.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the two air cleaner outlet resonator to engine bolts (4).

    Tighten:  Tighten the resonator to engine bolts to 6 N.m (53 lb in).

    3. Fig 2: Top Of Engine View
    GM732051Courtesy of GENERAL MOTORS CORP.
  3. Connect the fuel pressure regulator vacuum supply to the air cleaner outlet resonator.
  4. Connect the air cleaner outlet duct to the air cleaner outlet resonator.
  5. Connect the electrical connector to the intake air temperature (IAT) sensor (1).
  6. Properly position the air cleaner outlet duct and air cleaner outlet resonator clamps (2).

    Tighten:  Tighten the clamps (2) to 4 N.m (35 lb in).

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.