A/C System Inspection

NOTE: For A/C system noise, go to the A/C System Noise Check.

1. A/C System - Inspect

Before troubleshooting any problem with the A/C system, do the following to check if there is anything wrong with the A/C system. If any malfunctions are found while performing the checks, correct them referring to “Actions to take” in the table given below.

Inspection Area
Check for
Actions to Take
Fresh air intake for the HVAC unit (at the base of the windshield)
Leaves or debris blocking the air intake
Remove any blockage
A/C lines and hoses
Kinks or sharp bends
Replace the A/C lines and hoses that are kinked or bent
A/C components
A/C lines and hoses
Stains at the components or joints that may indicate a refrigerant or an A/C compressor oil leak
Do the Refrigerant Leak Check to confirm the leak(s)
Drive belt
Signs of slippage
Damage
Inspect the drive belt
A/C condenser
Dirt in the fins, or material clogging the fins (dirt, insects, etc.)
Clean up

NOTE:
Carefully clean any material from the A/C condenser fins with water and detergent
Do not perform pressure test until the condenser is completely dry
Fin damage, bent fins
Try to comb them straight

NOTE: If the fins cannot be straightened, replace the A/C condenser
Visible damage to the A/C condenser
Do the Refrigerant Leak Check to check for leaks. If the A/C condenser is leaking, replace the A/C condenser
A/C compressor clutch armature plate engagement
Check that the A/C compressor clutch armature plate engages and is rotating at the same speed as the clutch pulley
A/C condenser fan and radiator fan
Check that the radiator and A/C condenser fans operate when the A/C compressor clutch is engaged and blow air toward the engine compartment