Spark plugs that are worn can negatively impact engine performance and overall horsepower, whereas spark plugs in new condition can increase performance and efficiency. Performance spark plugs, such as those made of silv... More » Vehicles Car Parts & Maintenance Engine

Find cross-reference information for Bosch spark plugs on the official Bosch parts website,, as of 2015. The site provides a cross-referencing tool that requires the user to enter various vehicle detai... More » Vehicles Car Parts & Maintenance Engine

Troubleshoot an engine with no spark by first checking some of the common problems associated with a lack of spark. Common issues include crank sensor problems, ignition module problems and output voltage problems. More » Vehicles Car Parts & Maintenance Engine

To perform an engine compression test, disconnect the big wire leading from the distributor cap to the coil, disconnect the fuel injection, remove the spark plugs, and place the compression tester into one of the spark p... More »

The most common reasons a car does not start, even though the engine turns over, are problems with spark, fuel or compression. An inexpensive spark tester, available at most auto supply stores, is an easy way to test for... More »

The main components on a diagram of an internal combustion engine include the cylinder, which is the body of the engine, and the crankshaft, connecting rod, intake and exhaust valves, spark plug and piston. Fuel intake, ... 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 »