Engine Tune ups
Most of today’s cars and trucks have engines that are computer controlled, which has changed what a tune up encompasses. Many vehicle engines still have a single coil, others share a coil between two cylinders and some have a coil for each spark plug. Unless a failure occurs, the only thing to be replaced are spark plugs, ignition wires, fuel filters, PCV valves, and air filters.
Engine Timing Belt
The timing belt, or timing chain in some vehicles, is a drive belt that synchronizes the rotation of the engine’s crankshaft and camshaft with the opening and closing of your engine’s valves. Depending on the vehicle, it may also rotate the water pump.
Every time the ignition of your car is turned on, the fuel pump relay is activated. A fuel pump relay functions primarily to maintain a consistent voltage supply to the fuel pump.