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 1632 (WIPER SYSTEM AND WASHER SYSTEM)REPAIR INSTRUCTIONSWIPER 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 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Install the wiper arms onto the wiper transmission.
Hold the measuring device at a 90 degree angle to the wiper blade while maintaining the following distances:
- Right arm: 97-107 mm (3.82-4.21 in) from the end of the wiper arm to the air inlet screen.
- Left arm: 125-147 mm (4.92-5.78 in) from the wiper blade tip to the air inlet screen.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the wiper arm nut.
Tighten

Tighten the nut to 30 N.m (22 lb ft).

Fig 1: Installing Wiper Arm, Nut, Cover & Washer Hose
Courtesy of GENERAL MOTORS CORP.
Install the wiper arm nut cover.
Connect the washer hose to the wiper arm.
Operate the windshield wipers and inspect for proper operation.

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.