To troubleshoot an ignition module, check if there is a spark by detaching the spark plug wire. After that, hold the end of the wire close to the engine block, and ask somebody to turn over the engine. If a spark was cre... More »

An ignition control module is a component in a vehicle's engine that enables a spark to be produced at the correct time in each cylinder. It does much the same job as contact breaker points did in older cars. More »

Symptoms of a bad ignition module are sudden engine stalling or power loss while the car is in motion, engine stuttering accompanied by a smell of gasoline and an inability to restart the engine following a stall. Decrea... More »

A spark plug wire diagram shows both the location of an engine's spark plugs and the order in which they fire. There is no universal spark plug wire diagram, as every vehicle has its own distinct spark plug firing order ... More »

To replace spark plugs, remove each spark plug wire by pulling the caps, and then unscrew each of the plugs and remove them. Next, use a plug-gapping tool to properly gap the new plugs. Finally, screw in the new plugs an... More » Vehicles Car Parts & Maintenance

To change the spark plugs in a car, start with a cold engine and disconnect the spark plug wire carefully from the plug. Clean the spark plug area with a can of compressed air and using a spark plug ratchet and socket, r... More » Vehicles Car Parts & Maintenance

Parts and tools needed for a car's tune-up include spark plugs, a fuel filter, a socket wrench, a spark plug socket, a spark plug gapping tool, the service manual, screwdrivers, crescent wrenches, a distributor cap, spar... More »