The top reason ignition coils fail is bad spark plugs or plug wires. Another potential cause is heat and vibration, which can damage the ignition coil's windings and insulation. If an engine is experiencing repeated coil... More »

Symptoms of a bad ignition coil include backfiring, bad fuel economy, and stalling and starting issues. Before the ignition coil is replaced, the engine will need to be properly diagnosed to ensure it is the root of the ... More »

There are several different symptoms that may surface if a car has a bad ignition coil, including backfiring, trouble starting the vehicle, engine misfires, stalling and poor gas mileage. Any one of these problems, or an... More »

An engine misfires under acceleration due to faults in the spark plugs, plug wires or coils, or a weak fuel pump. Broken rods, pistons or crank bearings, cooling difficulties, and failed or distorted valves may also caus... More »

The best way to diagnose an engine misfire is by testing each of the components that most commonly cause misfires: spark plugs, plug wires, the coils and the fuel-delivery system. More serious issues could involve the pi... More »

Charts available at Nology.com show compatible spark plugs made by eight plug manufacturers. A cross-reference chart at ProGreenGrass.com also shows compatible plugs, as does a cross-reference search tool at Sparkplug-Cr... More »

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Kanter Auto Products sells fuel and water pumps, gas tanks, tires and tubes, idler arms, and ignition coils. They also sell engine parts, engine overhaul kits, fender covers and repair kits for floors, trunks and fuel ta... More »

www.reference.com Vehicles Car Parts & Maintenance