Auto Repair & Services
- Belts and Hoses
- Brake Repair
- Drive Lines
- Electrical Systems
- Engine Diagnostics
- Oil Change Service Troy
- Preventative Maintenance
- Steering & Suspension in Troy, AL
- Tune-Ups in Troy, AL
- Tire Installation in Troy, AL
- Tire Repair in Troy, AL
- Tire Rotation in Troy, AL
- Wheel Alignment in Troy, AL
- Wiper Blades in Troy, AL
Heating and A/C in Troy, AL
Your car’s air conditioning operates on the same principles as your home A/C or your refrigerator – it’s a cycle of condensation and evaporation (or compression and expansion) of refrigerant. Unlike your refrigerator, though, your car’s A/C is subjected to extremes of heat, cold and vibration. Like any other system on your car, the components of your A/C will degrade and wear out over time. Hoses dry out, harden and crack, O-rings start to leak and mechanical parts can eventually just fail completely. Even on newer vehicles, the “acceptable leakage rate” of your A/C fittings is about two ounces per year.
Signs of A/C Problems:
- Musty or foul odors from the A/C vents
- Air that’s barely cooler than ambient air outside
- Air feels humid or moist
- A/C only works while driving, not while parked or idling
- A/C vents can’t blow enough volume of air, even with fan on High
- Defroster isn’t doing its job effectively
- Metallic clicking at regular intervals while A/C is running – this usually means the compressor’s clutch is cycling it on and off to prevent damage due to low refrigerant level
- What Does A/C Service Entail?
- More times than not, the problem is an A/C system that’s low on refrigerant. We recharge the system using a refrigerant that contains a dye, making it easy to spot any leaks around hoses, O-rings, the evaporator, compressor or other A/C components. The refrigerant also contains an oil that lubricates the compressor and conditions O-rings and seals.
- When the compressor doesn’t engage, it’s usually due to low refrigerant…although sometimes it’s due to a faulty switch, fuse or relay. We will diagnose and repair as necessary.
- Any moisture in the system can lead to a freeze-up – our techs can clear moisture from the system with a vacuum pump.
- We flush the system to remove any sludge or contaminants that may have built up.
Your car’s heater is much less complex than the A/C system. It circulates hot engine coolant through a mini-radiator, called the heater core, which is mounted behind the dashboard. The heat is then directed through ducts to the passenger compartment, in a system that has stayed basically the same since the 1930s.
Weak heating from your car’s heater is often due to insufficient coolant in the radiator. It can also result from a problem with the damper that directs heat through the ducts or a fan that isn’t working properly. The heater core can also begin to corrode, resulting in damp carpeting on the passenger side, a greasy residue on the windshield while operating the defroster, or heated air that smells like coolant.
Nobody likes driving a car that’s never cool enough or warm enough. Problems with your car’s heating and A/C aren’t just uncomfortable…they can quickly get expensive, and like anything else, the longer you put them off, the more expensive they can get.
Don’t just put up with it. At Road Mart Tire, our techs can track down and repair any problems you might be encountering with your car’s A/C system.