When your vehicle's engine is off, the battery provides the required power to the rest of the system, as well as during start-up (cranking). It also supplements the power from the charging system during periods of high demand. Your vehicle's electrical system powers everything from the ignition and fuel systems to accessories such as your radio, headlights and wipers. The electrical system is, in turn, powered by the engine. Here are the three key components of the electrical system: Battery, Charging System, Starting System.

Heating and Air Conditioning Systems

Visual Inspection

• Interior controls and blower
• Radiator coolant level, hoses, pressure cap and thermostat
• The A/C compressor belt for condition and tension
• Leaks or other damage
• Component condition, leaks or damage

Heating and Air Conditioning Tests

• Pressure test engine cooling system
• A/C system pressures are measured and compared to manufacturer's specifications
• A/C system is leak tested
• Both the heater and A/C are performance tested by checking the outlet air temperature at the discharge vents

Check your tread depth. The easiest way to know if it's time to replace your vehicle's tires is to have them inspected by a professional, but there are ways to check them yourself by using a tire tread gauge.

Safety standard guidelines in the United States dictate that a tire's tread needs to be at least 2/32" deep. If the tires do not meet the 2/32" standard or are approaching that mark, you should replace your tires. Also, tires should not have sidewall damage or irregular wear. Irregular wear can be caused by improper alignment, overinflation, underinflation of tires, or a worn out suspension. Tires are an extremely important component of your vehicle, and it's a good idea to visually inspect them to see how they're holding up.

Tire rotation refers to the regular practice of switching the position of each tire on the car. The purpose of Tire rotation is to help equalize tread wear and is critical to gain the maximum life from your tire investment. Refer to your owner's manual for the recommended rotation interval and pattern.The rotation pattern varies with different makes and models, which shows the tire locations during rotation. Some vehicles have different size tires on the front and back or directional tires. This limits the locations that a tire may take on the vehicle. When in doubt, check the owner's manual or consult a professional technician for guidance.Tire rotation time also offers a good opportunity to have the tires and wheels balanced. It's another step you can take to maximize your tire investment.

Your transmission is a complex system of gears that transmit mechanical power to your engine, ultimately determining the rate of speed you travel. Transmissions convert this power from the engine so that it can supply high torque at low speeds, in addition to selecting which gears are appropriate based on the driving conditions. This is especially true with automatic transmissions-by far the most popular transmissions found in the US. Rather than using a clutch to engage the transmission, automatic transmissions use a torque converter (between the engine and transmission) to control the number of gears when driving. Supplying the power to regulate gear action is a demanding task, which is why it's important for you to maintain your transmission by servicing it. Here are some of the essential maintenance tasks we complete:

• Drain transmission and torque converter
• Refill Automatic Transmission Fluids (ATF) with new fluid

Transmission problems typically arise when regular service is neglected. When fluids aren't properly changed, heat caused from mileage friction results in rough shifting, accelerated wear, and even complete failure. That's why it's essential that you make sure that your transmission is lubricated and cooled by the finest quality transmission fluids, installed by our service professionals.

Often confused with wheel alignment, a properly balanced wheel is a beautiful, perfectly tuned wheel-tire combination. This is accomplished by placing measured lead weights on the opposite side of the "heavy spot"-the noticeable tread wear on your unbalanced tire.

If your vehicle vibrating at certain speeds, say, between 50 and 70 mph, then chances are your vehicle may have a wheel that is out of balance. One section of your tire may be heavier than the others because it's endured more exposure to the friction and heat of the road. Come in for prompt, professional service-most people are very satisfied with the difference such a simple and inexpensive procedure makes. Look for one of these signs, and if you find either one, come see us:

• Scalloped, erratic wear pattern on tires.
• Vibration in steering wheel, seat, or floorboard at certain speeds.