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Message: [QUOTE="Peroni, post: 426837, member: 315"] Ever since I got my truck its electrical system has always run at 14.1 volts - [I]always[/I]. My volts gauge always pointed straight down and never moved once the glow plugs turned off - [I]always[/I]. The past several months I've noticed the voltage hunting from 13.3 to 14.3. The volts gauge also moves around a bit. Batteries are Caterpillar 880CCA that are 19 months old. They spin the motor over fast and consistently. Alternator is a DC Power OEM series. I've never had the battery light come on. All connections have been cleaned and tightened. I'm thinking perhaps the voltage regulator may not be working right? Would this be proved by a load test? It does put out it's rated 14.8 volts. Bad cell in a battery? [/QUOTE]

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