How the a/c should be operating in order to cool down the interior of your car

Check inside the vehicle:

• The A/C climate control should be set to Max Cold Position.
• A/C Climate control set button On.
• Recirculation/fresh air mode set to recirculate.
• Engine temperature should be in the normal range (not overheating)
• Outside ambient temperature should be sensing outside actual ambient temperature.(Ambient temperature should be above 37 F )
• Engine RPM’s should in the normal everyday range.
• With the A/C  blower on Max, the mass of air coming out from the vents should be strong.
• Cabin air Filter should be clean.
• A/C evaporator coil should be free from debris and leaks.

Check the engine compartment :

• The front of the vehicle should be free from any road debris.
• The radiator and A/C condenser should be free from leaves, bugs or dirt.
• With the A/C system ON the radiator/condenser fan assembly should be operating.
• The Drive belt should be running all the accessories and in good condition.
• The A/C compressor CLUTCH should be engaged with A/C ON.
• The A/C compressor ECV should be modulating the hvac compressor output for max cold.
• All A/C lines and hoses should be free from dye, oil ,ice or damage.
• The A/C system should be properly charged with exact amount of refrigerant specified by the manufacturer.
• Hvac box drain tube should be draining water from underneath the vehicle.

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Learn More…

How to Check Your Car’s Air Conditioning System ?