Spark plugs have a pretty predictable life cycle, but ignition coils can be harder to track. Here's how to tell if an ignition coil is on its way out.

AUTOOL Car Spark Plug Tester,Automotive Engine Ignition Plug Analyzer 110V with Protective Cover Spark Plug 0 to 6000rpm with Double Hole 12MM Spark Plug Socket, SPT-101 AUTOOL 509 ratings ...

Most people think you can check a small engine’s ignition system by removing the spark plug and grounding it while cranking ...

The engine for our test is the perfect candidate because it should be capable of big power and able to stress any ignition. The Chevy 350 has a 4.040-inch bore and 3.480 stroke.

Spark Tester Bill Grannis Purchasing specialized testing equipment to fix your own outboard motor is expensive. Often a DIY mechanic can fabricate his own special tools making troubleshooting a lot ...

We dyno test Performance Distributors' 5.0 Firepower Ignition Kit on a 1989 Ford Mustang Notch-Back. Find all the details inside Hot Rod Magazine.