The alternator produces an AC current that must be converted into DC current by way of a rectifier.
Alternators have been used to charge the 12V DC electrical systems in vehicles since long before computers and networks were part of the equation. Just a few decades ago, the 12V DC electrical system wasn’t that vulnerable to ripple voltage. Today however, excessive ripple voltage can cause major communication issues across networks and can cause a number of communication DTCs to be set in multiple control modules.
A misalignment of the plane of the belt can occur when a pulley is not parallel to the other pulleys on the belt drive system.
What if there are no codes and a misfire is intermittent? This is where it gets complicated.
The area of contact between the lifters and cam lobes is the highest loaded surface inside an engine.
Many alternator problems turn out to be nothing more than a bad connection at the alternator or a bad wiring harness.
Two specifications can be used to justify replacement — the condition of the additive package & the freezing point.
All-season coolant used inorganic acid technology and worked great for almost 30 years.
Why do ignition systems give technicians problems when diagnosing ignition-related misfires? The answer is that some technicians use tests that might give inconclusive results or do damage to the coil or drivers inside a module.
An accessory drive belt is always both speeding up and slowing down.
