Distributors used to be a fixture on car engines, but they were replaced by coil packs somewhere in the 1980s. Here's why ...

How does spark plug timing work? An explanation of automotive ignition systems. Ignition coils, distributors, and firing intervals all play an important role in ignition. Note: The cylinder order from ...

If you're a follower of the "How It Works" series, you've been learning the principles of what makes a car run. You've boned up on the four-stroke cycle, valvetrains, cooling, lubrication, and ...

If you've ever leaned over the fender of an old Chevy, timing light (one of the automotive diagnostic tools to add to your DIY collection) in one hand and a long extension on a ratchet wrench in the ...

This automotive tutorial demonstrates a comprehensive ignition system upgrade and check engine light fix on a performance hatchback. The process involves replacing a faulty emissions purge valve ...

Ignition timing is easily the single most important tuning adjustment on an internal combustion engine and yet the concept of ignition curves continues to be elusive for many enthusiasts. Yet all it ...