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operating battery voltage

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  1. Axekicker

    Caterpillar Batteries and alternator voltage

    After experiencing wildly fluctuating alternator voltage issues, I took my truck back to the shop that rebuilt the motor last year and had them trouble shoot it. They said one of the Costco batteries had a bad cell (pass-side) and the ECM was bad. The alternator is original OEM (2004.5) and...
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