A bad strut makes noise and causes the vehicle to vibrate when it hits bumps. As the wear progresses, the noise often becomes worse. Replacing the strut helps the vehicle handle normally and quiets the noise.Know More
Struts usually fail over time. Although the mileage between replacements varies, most need replacement at between 70,000 and 80,000 miles. Most drivers note a marked improvement in the handling of the vehicle when a bad strut is replaced.
Driving with bad struts increases the wear and tear on other components of the vehicle's suspension system. Ignoring the noise and vibration caused by a bad strut places additional stress on these components that can also cause them to fail.Learn more about Car Parts & Maintenance
One cause of rattling noises coming from the underside of a vehicle is a component of the exhaust system being loose. This could be a poorly secured heat shield, a loose muffler, broken hangers or ill fitting pipe gaskets.Full Answer >
A vehicle can make a chirping noise when a belt is loose or slipping. This can occur as the belt becomes worn down and cracked.Full Answer >
Diagnose a bad coil pack by using an ohmmeter to compare the vehicle's readings to standard values for the vehicle. Use a scan tool to determine which cylinders are misfiring as a result of the defective ignition coil. Water can also help to diagnose a bad coil. Use a spray bottle to mist water over the coil pack to determine which areas of the engine are misfiring.Full Answer >
Signs of a bad ignition switch could include dashboard lights that come off and on, problems with the vehicle starting and a switch that is hot to the touch. A bad ignition switch can mimic other problems that are seen in a car, such as a faulty motor starter.Full Answer >