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 1513 (HYDRAULIC BRAKE SYSTEM)REPAIR INSTRUCTIONSBRAKE PEDAL ASSEMBLY 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 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Brake Pedal To Mounting Bracket

Courtesy of GENERAL MOTORS CORP.

Lubricate the bushings, pivot bolt, and all friction parts with high temperature silicone brake lubricant.
Install the brake pedal to the mounting bracket.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the pivot bolt and nut.
Tighten: Tighten the brake pedal pivot nut to 29 N.m (21 lb ft).
Reposition the dash isolation mat.

Fig 2: Isolation Mat To Brake Pedal

Courtesy of GENERAL MOTORS CORP.

Install the retainer, washer, brake booster pushrod, and brake pedal pin to the brake pedal. Verify proper engagement of the retainer to the brake pedal pin by rotating the retainer.

Fig 3: Accelerator Pedal Position Sensor & Brake Apply Sensor

Courtesy of GENERAL MOTORS CORP.

Connect the accelerator pedal position sensor (1) and brake apply sensor (2).
Install the instrument panel knee bolster trim panel. Refer to Trim Panel Replacement - Knee Bolster in Instrument Panel, Gages, and Console.

RENDER: 1.0x

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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.