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 MANUALSCHEVROLET2012EXPRESS 3500 V8-4.8LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGAIR DUCTSERVICE AND REPAIRAIR DISTRIBUTOR DUCT REPLACEMENT
2012 Chevrolet Express 3500 V8-4.8L
Air Distributor Duct Replacement
2012 Chevrolet Express 3500 V8-4.8LSECTION Air Distributor Duct Replacement
Air Distributor Duct Replacement
Removal Procedure
1. Remove the engine cover. Refer to Engine Cover Replacement Service and Repair.
2. Remove the I/P carrier. Refer to Instrument Panel Carrier Replacement Instrument Panel Carrier Replacement.
3. Remove the air distribution duct retaining screws (2).
4. Remove the retaining screws at the instrument panel.
5. Remove the air distribution duct from the instrument panel.
Installation Procedure
1. Install the air distribution duct to the instrument panel.
Caution:
Refer to Fastener Caution Fastener Caution.
2. Install the air distribution duct retaining screws (2) to the instrument panel and tighten to 4 Nm (35 lb in).
3. Install the I/P carrier. Refer to Instrument Panel Carrier Replacement Instrument Panel Carrier Replacement.
4. Install the engine cover. Refer to Engine Cover Replacement Service and Repair.
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.