Your Oldsmobile ignition system is designed to perform three basic functions and one of its functions and actually the most important function is to give a sufficient spark needed to make the vehicle run. But the ignition system will not work without a distributor in it. This component is engineered to route the high current in the correct firing order into the spark plug. The ignition distributor is comprised of a rotating arm or rotor. Just like the other distributor rotors, your Oldsmobile distributor rotor is found inside the distributor cap, which is above the distributor shaft. The distributor rotor includes a metal component which has a contact with the central high powered cable connected from the coil and goes through a spring loaded carbon bush. Meanwhile, the metal portion of the rotor arm passes into the output contact. With the high tension cables, it significantly connects the spark plug of each cylinder. Once the distributor rotor spins inside the distributor device, consequently, it will allow the electrical current to jump the small gaps or opening produced between the rotor arm as well as the contacts. This is possible due to the electricity created by the ignition coil. Now, because of the importance of this distributor cap in your car's ignition operation, make sure that it is always in good shape. As recommended, distributor rotors should be replaced every tune up or at least every two years. By doing this religiously, your vehicle is guaranteed with the correct amount of ignition sparks that will travel from the spark plug coil and goes through the spark plug at the right time. If you neglect to replace it, your car will hesitate or stumble during acceleration. One of the reasons is the contamination or breaks and cracks on the distributor cap. If your car needs a new Oldsmobile distributor rotor, you can visit our online store anytime. We have a lot of top quality distributor rotors in stock for your car's needs.