Diagnostic tests are used to determine what repairs are required to ensure a vehicle operates properly. On newer model vehicles, an on-board diagnostics computer interface is used in conjunction with diagnostic tools and software to help mechanics identify problems.
The diagnostic test is performed using a scanner that is inserted into a special connector, sometimes found under the dash on the driver's side of the vehicle. The scanner receives information regarding the vehicle's model, identification number and engine type. It also receives and identifies a specific diagnostic code that relates to a specific problem. The diagnostic test and code helps the mechanic understand where to look to make the necessary repairs.Learn More
CarsDirect.com explains that when a vehicle shakes as it slows down and the brakes are applied, worn brake rotors or unevenly worn pads are likely culprits. According to the source, excessive wear on the rotors and the amounts of heat generated during braking alter the shape of the rotor turning a normally flat surface into one with smalls peaks and valleys.Full Answer >
A car shakes while driving because of problems with the suspension or wheels that cause these elements to not sit properly and therefore shudder as the vehicle moves forward. Shuddering often intensifies the faster the vehicle moves. Shaking and tremors occur in the steering wheel as vehicles reach higher velocities.Full Answer >
A catalytic converter, or CC, on a car works to take the harmful compounds that a vehicle puts out and it converts them into harmless compounds. It works to convert carbon monoxide, hydrocarbons and nitrogen oxides.Full Answer >
On average, car batteries last for up to four years depending on location, owner's driving habits, type of vehicle and other conditions. Normal conditions for a battery involve having full charge cycles, lack of extreme temperatures, a reliable and consistent charging system and only a small amount of other accessories.Full Answer >