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Jordan Walter

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  1. Jordan Walter
    Well after driving the truck for a couple days, the voltage seems to start out high - 14.8 to 15.2 volts, and then slowly drop after about 25 minutes down to 12.8 and hovers between 12.8 - 13.1v. If I turn on the head lights it slowly climbs back up to normal 14.3-14.5v. I read in the manual about the RVC (Regulated Voltage Control) and I'm wondering if it's just part of that?
  2. Jordan Walter
    I already mentioned that I checked the grounds and cleaned the connections.
  3. Jordan Walter
    The battery light never came on.
  4. Jordan Walter
    I have checked all the connections and grounds and they seem to be fine.
  5. Jordan Walter
    I was having electrical issues on my 2005 GMC Sierra 1500, which is at 197,000 miles. The issues were things like pulsing lights (interior and exterior and low voltage fluctuation (14.0v to 11.8v) so I replaced the alternator with a premium 160amp remanufactured one from CarQuest. Now my voltage seems high, sitting at 14.9v-15.2v during idle. The pulsing went away, but now it pulses when I rev the engine. I will leave it at about 1500 RPMs and it will steadily pulse until I release the gas. Is this an issue with the alternator or something else?
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