Car Repair World

Car A/C Problems And Troubleshooting Auto air conditioner repair is an inconvenience that no one wants to experience. Unfortunately, the uncomfortable feeling of driving to work during the summer with a broken AC unit is all too common. If your car’s air conditioner is causing you to feel the heat, then there are a number of possible root causes. Some of the most common types of vehicle AC repairs are listed below: Leaking Coolant Coolant is the liquid in your engine that produces cold air. As this liquid is pumped through a series of tubes and hoses via an AC compressor, it passes through an expansion valve that causes the coolant gas to expand and cool. If insufficient levels of this coolant are present in the AC system, then the result will be inadequate cooling. The most common cause of low coolant levels is a puncture or leak in the AC system. Rubber hoses and connections are prone to punctures, and will result in a loss of coolant as it flows through the system. An eas...

A/C Line or Hose Replacement This guide requires the following supplies: Refrigerant oil Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Open the hood and locate the vehicle's A/C lines or hoses. Photo may not be specific to your vehicle 2 Disconnect the negative battery cable using an open ended wrench. Photo may not be specific to your vehicle 3 Recover any refrigerant (discharge A/C system) with an A/C machine. 4 Remove damaged A/C lines or hoses. Photo may not be specific to your vehicle 5 Install the new o-rings, A/C line, and hose. 6 Reconnect negative battery cable. 7 Evacuate all remaining A/C refrigerant using an A/C machine to pull a vacuum on the system. 8 Recharge the A/C system with the A/C refrigerant and have the A/C system leak tested. Each vehicle takes a different amount of A/C re...

A/C Condenser Replacement STEPS This guide requires the following supplies: Refrigerant oil Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Disconnect the negative battery cable. Photo may not be specific to your vehicle 2 Locate your A/C condenser. 3 Inspect the condenser for cracks that can lead to leaking. 4 Recover the refrigerant (Discharge the AC system). This will need to be done with a recovery machine. If the Freon has already leaked out you will not need to do this. 5 Remove any grilles, supports, lock braces to gain access to the condenser. 6 Remove the condenser's refrigerant lines. Cap these lines immediately. Photo may not be specific to your vehicle 7 Remove the condenser mounting bolts. Photo may not be specific to your vehicle 8 Remove the condenser. 9 Install a new con...

A/C Compressor Replacement Safety Tip: Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes. 1 Open the hood and locate your vehicle's A/C compressor. Photo may not be specific to your vehicle 2 Remove the A/C belt from the A/C compressor pulley. May involve loosening the belt tensioner (if equipped). 3 Evacuate the A/C system using a refrigerant recovery machine. 4 Disconnect the negative battery cable. Photo may not be specific to your vehicle 5 Remove the bolt that secures refrigerant lines to the A/C compressor. Inspect A/C lines for any contamination such as metal or excessive dirt inside of them. If you find any contamination the system will need to be cleaned. 6 Disconnect any electrical connectors from the A/C compressor. Photo may not be specific to your vehicle 7 Remove the AC connections. Remove the A/C compressor m...

Air Conditioner Working Of Automotive Air Conditioner System How A/C Works In Car Helpful Information Hoses and components should be checked for deterioration, bubbles, cracks and hardening or oily residue, all could be signs of leakage. Leaking Condenser Proper refrigerant levels should always be maintained, low system refrigerant charge is a common cause of a weak AC system. Odors can developed in the air conditioning system when a fungus has grown on the evaporator core, aerosol disinfectants can be used to remedy this condition. Refrigerant charging kits are available at many auto parts stores. Leaves and dust particles can get logged in the condenser hindering its performance, use a garden hose or compressed air to clean. (Note: An air conditioning system is under pressure, until the system is discharged completely, no repairs or disassembly should be performed. Eye protection should always be worn.) Easy to understand guide on how an automotive air condition...

Blend Door Motor Replacement How to Replace a Blend Door Motor First of all let’s bet an idea of what a blend door motor does. Inside your car; heat comes from the air passing over the  heater core  and cold air comes from the air passing over the air conditioner evaporator . Inside the heater box is where the blend door is actuated by a blend door motor that closes and opens it depending on the temperature selected inside the vehicle. To find out if your blend door motor is working properly, start engine and select the low fan setting and move the climate control from cold to warm and back while listening to the sound of the blend motor through the vents.  You should hear it activate while changing from warm to cold. If you only have heat then you may have a  vacuum leak  or your blend door motor is bad and should be replaced. To give you an idea of what is involved it replacing the blend door motor, you have to see where it is located. If behind the ...

Air Conditioner Compressor Replacement Procedure To Replace Vehicle A/C Compressor Helpful Information Before attempting to replace an air conditioning compressor there is refrigerant inside the air conditioning system is under high pressure and should not be released directly into the atmosphere. The refrigerant is expensive and recyclable. Recovery of the refrigerant should be done with a recovery/recycling/charging station. Once finished with the compressor replacement, you can re-use the old refrigerant using the same charging station. AC Refrigerant Recovery Machine Best Practices When charging the system be sure to replace the same amount of oil that was removed during the refrigerant recovery process. Charge system with the manufacturers recommended amount of refrigerant. Use refrigerant leak detector to make sure no refrigerant leaks are present. If the air conditioner is weak or not working at all follow this link to repair-  Air Conditioner Not Work...