SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1045 (STEERING LINKAGE (NON-RACK & PINION))REPAIR INSTRUCTIONSIDLER ARM REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position the idler arm (2) on the frame.
    Fig 1: Positioning The Idler Arm On The Frame
    GM340442Courtesy of GENERAL MOTORS CORP.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the frame bolts (3) and the nuts (1) to the idler arm.

    Tighten:  Tighten the frame bolts or nuts to 99 N.m (73 lb ft).

    3. Fig 2: Steering Linkage Components
    GM340481Courtesy of GENERAL MOTORS CORP.
  3. Install the relay rod (9) to the idler arm ball stud (1).

    Ensure the seal is on the stud.

  4. Use the J 29193  in order to seat the tapers.

    Tighten:  Tighten the J 29193  or the J 29194  to 54 N.m (40 lb ft) in order to seat the tapers.

    Fig 3: Seating The Idler Arm Tapers
    GM689037Courtesy of GENERAL MOTORS CORP.
  5. Install the new idler arm ball stud prevailing torque nut to the idler arm ball stud.

    Tighten:  Tighten the nut to 62 N.m (46 lb ft).

  6. Install the engine protection shield, if equipped. Refer to Engine Protection Shield Replacement in Frame and Underbody.
  7. Lower the vehicle.
  8. Check the wheel alignment. Refer to Measuring Wheel Alignment (w/Rear Wheel Steering) or Measuring Wheel Alignment (w/o Rear Wheel Steering) in Wheel Alignment.
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.