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.

2003 Pontiac Aztek AWDFACTORY OEM SERVICE PROCEDURE

Installation Procedure

Install the O-ring to the speed sensor, if removed.
Install the speed sensor (1) to the transfer case.

Fig 1: Installing Speed Sensor To Transfer Case
Courtesy of GENERAL MOTORS CORP.
Position the pinion housing vent hose (2) and mounting bracket to the speed sensor bolt boss.

Fig 2: Pinion Housing Vent Hose & Mounting Bracket To Speed Sensor Bolt Boss
Courtesy of GENERAL MOTORS CORP.
Install the speed sensor bolt (3) to the transfer case.
Tighten

Tighten the bolt to 30 N.m (22 lb ft).
Connect the electrical connector to the speed sensor.
Lower the vehicle.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote 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.