Air Conditioning System

Don’t suffer in your car during those long summer days. A properly recharged and fully functioning air conditioning system will maximize your comfort while minimizing your gasoline usage. Let our fully trained and factory authorized Advanced Auto Diagnostics technicians run an air conditioning performance or maintenance test before you hit the road. Our Mechanic shop has all the proper equipment to insure you drive away in the coolest car in Miami/Doral.

Test includes:

  • Air Conditioning System Check with Gauges
  • Temperature Test at All Outlets
  • Inspection with Leak Detection Equipment
  • Cooling System Inspection
  • Inspection of Belts and Hoses

Let us help you keep your cool by visiting Advanced Auto Diagnostics in miami today.
2215 NW 97 Avenue Doral, FL 33172
305-418-8748

Warning Signs

These warning signs are only possible symptoms of the problem. Please come in and ask our service advisor for a professional diagnosis.

  •  Air Conditioning and/or Heating system doesn’t operate to the temperature it has been set to
  • The fan does not work
  • The fan makes a loud noise when operating
  • Some or all of the dash controls do not work
  • Heater, top and side vents, or defroster do not work
  • The engine makes loud noises when the heat or air conditioning is turned on
  • Vehicle stalls or idles roughly when the system is turned on
  • Vehicle runs hot or overheats when the system is on
  • There is water on the car’s floor
  • Electric engine cooling fan quickly cycles on and off
  • Unusual odors come from interior vents
  • The system has not been serviced in a long time
  • The windows fog up even when defroster is turned on

Your car’s engine is the power source for both heating and air conditioning systems. The systems also share other components, as the above diagram shows. Here’s what happens when you flip on the heat or the air conditioner:

(I.) Heating System
Heat is a byproduct of the engine’s combustion process. The coolant in your car’s radiator absorbs the heat. The coolant is then circulated through the heater core before returning to the radiator. The heating system also includes a series of air ducts, a blower motor and fan, and temperature and duct controls, which select the desired temperature and direct the flow of warm air.

(II.) Air Conditioning System
This system shares air ducts, controls and a blower with the heater, but has its own refrigerant system. The air conditioning system is comprised of the following components:

(1) Compressor
This is a pump that pressurizes and circulates the refrigerant through the system.

(2) Condenser
As the refrigerant flows through the condenser, it gives off heat and converts from gas to liquid.

(3) Receiver/Dryer or Accumulator
This is where clean, dry refrigerant is stored as it circulates through the system.

(4) Orifice Tube or Expansion Valve
This is a metering device that controls the flow of refrigerant through the system.

(5) Evaporator Core
Refrigerant enters the evaporator core as a liquid. Heat from the air converts the liquid refrigerant back into a gas, which cools the air before it enters your vehicle.

What our Service Includes

  • Inspect system for leaks, including hoses, couplings, valves and evaporator
  • Visually inspect the controls and fan
  • Pressure test the engine cooling system
  • U.V. dye is used for leak checks, if necessary
  • Recover any refrigerant left in system
  • Evacuate the entire system
  • Inspect and adjust drive belt tension
  • Test compressor operation
  • Fill with proper amount of refrigerant as per vehicle manufacturer (refrigerant cost is an additional charge)
  • Check vent output air temperature
  • Check proper operation of Dash Controls, Blower Motor, Engine Cooling fan
  • Check antifreeze/engine coolant