alternators Archives - Page 2 of 2 - UnderhoodService
Tech Tip: Alternator And Battery Testing Diagnostic Tips

For some vehicles, it’s normal to see as high as 16 volts for long periods at a time. For others, it’s ­normal to see as low as 13 volts. For some, a constant 13.6 volts is an indication of a problem.

Honda LIN Line Controlled Charging Systems

On older vehicles, the alternator and engine were never really connected. The alternator was internally or externally self-regulated to a voltage, but that was it.

Alternator Pulley Diagnostics

When faced with an illuminated charge light diagnosis on most late-model vehicles, do not automatically assume the problem is inside the alternator and potentially unserviceable.

Motorcraft Announces New Products In 2nd Quarter

In addition to these products, Motorcraft has announced lowered pricing on accumulators and A/C compressors, covering 28 OE replacement part numbers to be more competitive.

Be Careful When Handling Alternators with Floating Stators

Some original equipment alternators made in recent years ­feature a “floating stator” that is more sensitive to proper handling than previous designs. Previously, the stator — the set of windings that surround the rotor — in most alternator designs, is press-fitted or in a tight tolerance. In recent years, however, some manufacturers have chosen to

Bosch-Stator alternator
Avoid Alternator Returns, Make Peace With Your Parts Suppliers

If the charging voltage is low, or the alternator isn’t putting out enough current to keep up with the electrical loads that are placed upon it, don’t automatically assume the starter or alternator is bad and needs to be replaced (unless you’re bench testing the unit out of the vehicle). Many times an alternator is

Alternator failures