How to Identify a Chevrolet Truck Air Conditioning Condenser

From big rigs to Buicks, air conditioning systems are all the same.

Truck air conditioner systems work exactly the same as automotive air conditioner systems. Without a clean, well-serviced condenser--the component where hot refrigerant gas is transformed into liquid--the refrigeration system becomes a poor performer. Every time the vehicle is washed, the condenser should be cleaned, as well.

Instructions

1. Raise the hood of the truck. The condenser is located directly in front of the radiator--a high pressure hose goes from the condenser to the compressor, and a small, liquid-line leaves the condenser and goes through a metering valve or tube on to the evaporator.

2. Follow the large hose leaving the compressor to a round, aluminum tank mounted against the firewall. This tank is a filter-dryer that conditions the refrigerant as it leaves the evaporator and travels back to the compressor. The steps, in order are: The compressor pumps to the condenser, from the condenser refrigerant flows to the metering device, then into the evaporator, where cooling occurs, and finally back to the compressor.

3. Inspect the condenser. Since it is located in front of the radiator, it is subject to a great deal of abuse, especially on a truck. Look for rock dings in the aluminum fins. Dark, oily spots on the condenser almost always indicate a leak. Clean the condenser with high pressure water.

References

• Google Books; Automotive Heating and Air Conditioning
• Edmonds: Air Conditioning