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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1425 (WIPER SYSTEM & WASHER SYSTEM)REPAIR INSTRUCTIONSWIPER TRANSMISSION 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 Wiper Transmission

Courtesy of GENERAL MOTORS CORP.

Position the wiper transmission assembly to the cowl panel plenum.
Connect the electrical connector to the wiper motor.
Insert the wiper motor post into the slot in the plenum, push the transmission assembly forward to seat the post.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the bolts retaining the wiper transmission assembly to the vehicle.
Tighten: Tighten the wiper transmission assembly bolts to 8 N.m (71 lb in).
Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement (Envoy, TrailBlazer) or Air Inlet Grille Panel Replacement (Rainier) in Body Front End.
Install the windshield wiper arms. Refer to Wiper Arm 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.