Ignition coils sit at the center of every gasoline engine’s spark, yet they usually stay invisible until something goes wrong. When a coil starts to fail, the symptoms can look like fuel problems, ...

Just like spark plugs, ignition coils can wear down and become faulty over time. There are many common signs that an ignition coil is getting bad, but one obvious sign is an engine misfire, typically ...

Coil-sprung suspension is a low-stiction, low-maintenance approach to suspending your mountain bike, with less heat build-up than air suspension. However, unlike air suspension (where you just ...

You're hunched over the engine with your wrist painfully contorted, wishing you were Mr. Fantastic. You've finally removed broken spark plug number four and then the intrusive thought hits. "Should I ...

Sudden misfires feel like the engine just lost its rhythm, yet the real drama often starts inside a failing coil pack. When ignition coils break down under heat, vibration, or age, they can turn a ...

Leaf springs are treated like archaic tech, as they aren’t found under any of the latest industry-leading performance cars, and are often used as a point of reference that shows how “dated” a ...

NOWHERE I'm afraid. When you modify a vehicle by fitting aftermarket springs you are deviating from the manufacturer's specification and taking responsibility for that modification yourself. You ...

One of the primary topics of conversation within the pages of Four Wheeler, as well out on the Internet and amongst wheeling enthusiasts, is suspension. Suspension is one of the most important aspects ...