An efficient combustion process would only be possible if your internal combustion engine gets a precise distribution of electricity. The timely burning of fuel mixture within the engine is made possible with your car's ignition system. Timing is essential so that the expanding gases in your engine could do the maximum amount of work. Among the vital parts of your ignition system is the GMC distributor cap. This car component serves an essential part by channeling high voltage of electricity in the correct firing order to the spark plugs. A typical GMC distributor cap is constructed out of hard plastic and a small amount of copper. It also serves as a protective covering for the distributor and its internal rotor. Your distributor cap is equipped with a terminal that is connected to each post in the engine cylinder. They are arranged in such a way that the secondary voltage to the spark plug would be sent in the correct firing order. Because your GMC distributor cap is constantly exposed to high voltages, carbon tracking will develop inside the cap. It could cause engine misfires, so it is highly advisable that you replace your stock distributor cap once in two years or after every 15,000 miles of driving. Your car may have a worn out GMC distributor cap if you have been experiencing some hesitation during acceleration. Do not worry, because Car-Stuff has all the vehicle parts that you might need. Just browse our comprehensive and easy to navigate online catalog to choose the product that you need. In placing your orders, simply fill out our online order for or dial out toll free hotline number. You are guaranteed that all your orders will be processed in no time at all-because we are committed to bring you customer satisfaction.