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 1780 (ANTILOCK BRAKE SYSTEM AND TCS)REPAIR INSTRUCTIONSBRAKE PRESSURE MODULATOR VALVE BRACKET REPLACEMENTREMOVAL PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Transmission Control Module

Courtesy of GENERAL MOTORS CORP.

Remove the transmission control module (TCM), if equipped, from the mounting bracket and position aside.

Fig 2: Disconnecting/Connecting Electrical Connector From Electronic Brake Control Module (EBCM)

Courtesy of GENERAL MOTORS CORP.

Turn the ignition switch to the OFF position.
Disconnect the electronic brake control module (EBCM) electrical connector.

Fig 3: Removing/Installing Brake Modulator Assembly To The Bracket

Courtesy of GENERAL MOTORS CORP.

Loosen the 2 insulator nuts on the brake pressure modulator valve (BPMV) assembly.
Carefully lift the brake modulator assembly just enough to clear the bracket, then support the assembly.

Fig 4: View Of BPMV Bracket

Courtesy of GENERAL MOTORS CORP.

Remove the brake pressure modulator assembly bracket mounting bolts.
Remove the bracket from the vehicle.

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.