Why Are Alternators Subject To Ripple Voltage?
The alternator produces an AC current that must be converted into DC current by way of a rectifier.
Why Is My Check Engine Light On?
One of the toughest components to sell as a maintenance item, or even a replacement item, is an oxygen sensor.
Spark Plug Evolution & Inspection
Today’s version of reading a spark plug can give you an indication of how other components are functioning within the engine.
Understanding 5-Volt Reference Signals
Author Gary Goms provides two real-world examples of how two- and three-wire sensors can cause an intermittent rich operating condition.
Secondary Ignition Diagnostics
There’s more to ignition science than looking for the classic quarter-inch long “hot blue spark” jumping from coil secondary to ground.
10 Tips for Serpentine Belt System Inspection and Service
Just 10% belt slippage can affect the overall driveability of a vehicle. Check out these inspection tips.
