Air conditioning repairs can be expensive. Technicians might charge hundreds of dollars to troubleshoot and service an A/C system. Before spending money on professional services, try to flush your vehicle’s A/C system yourself. The procedure for flushing the A/C system is fairly straightforward. You need a few automotive tools and about two hours.

Step 1

Park your vehicle in a safe location on even ground. Engage the parking brake, but allow the engine to idle. Turn on the air conditioning system. Open the hood.

Step 2

Locate the air conditioning service fittings. The low-side fitting is located on the refrigerant hose that goes from the accumulator to the compressor. The high-side fitting is located on the refrigerant hose that goes from the compressor to the condenser. Remove the plastic caps on the service fittings.