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 MANUALSCHEVROLET2000CAB & CHASSIS K2500, 7.4 J, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1165 (HEATING, VENTILATION AND AIR CONDITIONING)REPAIR INSTRUCTIONSRECIRCULATION DOOR REPLACEMENTINSTALLATION PROCEDURE

2000 Chevrolet Cab & Chassis K2500, 7.4 J, Automatic

Installation Procedure

2000 Chevrolet Cab & Chassis K2500, 7.4 J, AutomaticSECTION Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Recirculation Door In The Air Inlet Housing

Courtesy of GENERAL MOTORS CORP.

Install the recirculation door to the air inlet housing.

Fig 2: Locating Air Inlet Housing Retaining Screws

Courtesy of GENERAL MOTORS CORP.

Align the recirculation door with the other half of the air inlet housing.
Connect the air inlet housing halves.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the air inlet housing screws.
Tighten: Tighten the screws to 0.9 N.m (8 lb in).

Fig 3: View Of HVAC Module

Courtesy of GENERAL MOTORS CORP.

Install the air inlet housing to the HVAC module.
Install the air inlet housing screws.
Tighten: Tighten the screws to 0.9 N.m (8 lb in).
Connect the recirculation actuator electrical connector.
Install the HVAC passenger compartment air filters.
Close the HVAC passenger compartment air filter access door.
Install the I/P carrier. Refer to Instrument Panel (I/P) Carrier Replacement 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.