Reply to "Battery Issue?"

George PAdmin.

The wide range of charging system voltage Jan measured sounds as though the voltage regulator was not regulating, and voltage was increasing or decreasing based on alternator speed (rpm). That's a common failure mode for a voltage regulator. I would have purchased a new regulator too. Modern electronic voltage regulators normally regulate at about 14 volts, the voltage should never go higher than that.

If the car starts normally (easily) next weekend then the battery is probably OK. If the car cranks sluggishly or needs a jump then the battery needs to join me in retirement. As a last resort a good auto parts store should be able to perform a load test on the battery for you.

1/20/1411:27 PM

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