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Alternator Ripple Help
Posted to on 4/9/2015 75 Replies

Hi,

I'm working on understanding alternator ripple patterns, and this is my first shot at diagnosing an alternator based on a waveform. The vehicle is an 05 f150 with a motorcraft alternator that is approx. 4 months old. A week ago it had a 60 second episode of overcharging, just once. Voltage drop across B+ wire to alternator is good. What does everyone think about these waveforms? Concern was not present at the time of these captures. [2005 Ford F-150 XLT, BATT/Charging/Starting Waveform] [2005 Ford F-150 XLT, BATT/Charging/Starting Waveform] [2005 Ford F-150 XLT, BATT/Charging/Starting Waveform] [2005 Ford F-150 XLT, BATT/Charging/Starting Waveform] [2005 Ford F-150 XLT, BATT/Charging/Starting Waveform] [2005 Ford F-150 XL, BATT/Charging/Starting Waveform] [2005 Ford F-150 XL, BATT/Charging/Starting Waveform] [2005 Ford F-150 XL, BATT/Charging/Starting Waveform] [2005 Ford F-150 XL, BATT/Charging/Starting Waveform] [2005 Ford F-150 XL, BATT/Charging/Starting Waveform]

Roman from Washington

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