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 MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 161 (COMMON SPECS & PROCEDURES)AIR CONDITIONINGAUTOMATIC & MANUAL SYSTEMHVAC SYSTEM SERVICE SPECIFICATIONS

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

HVAC System Service Specifications

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION HVAC System Service Specifications

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

HVAC SYSTEM SERVICE SPECIFICATIONS

Application

Specification

Accumulator Replacement

⁽¹⁾ 2 ozs.

Compressor Replacement ⁽²⁾

⁽¹⁾ 2 ozs.

Condenser Replacement

⁽¹⁾ 1 oz.

Evaporator Replacement (Front Or Rear)

⁽¹⁾ 3 ozs.

Total System PAG Oil Capacity

With Rear A/C

11 ozs.

Without Rear A/C

8 ozs.

R-134a Refrigerant Charge

Standard

2.0 lbs.

With Rear A/C

3.0 lbs.

⁽¹⁾	Add PAG oil equal to amount of oil drained from component plus the specified additional amount. PAG Oil GM P/N 12378526 for U.S. & GM P/N 88900060 for Canada.

⁽²⁾	The Denso service compressor is precharged with 8.0 ozs. PAG oil.

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.