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2014 Chevrolet Silverado 2500 HD LTZ 6.6L Voltage Guage / Overcharging
Posted to GM Electrical on 1/12/2026 3 Replies

Help pulling mt hair out... chevy silverado 2500 6.6l duramax all of a sudden charging guage is low / different than has been for 125k miles checked to see if alternators were working and found overcharging 15.5 to 16.0 volts at idle unplugged alternator s...

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car Vehicle Data

2014 Chevrolet Silverado 2500 HD LTZ

VIN 1GC1KYE8XE
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedVoltage Guage / Overcharging
Conditions?
Misc.Boss Snow Plow
Open Help Request

car Vehicle Data

2014 Chevrolet Silverado 2500 HD LTZ

VIN 1GC1KYE8XE
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedVoltage Guage / Overcharging
Conditions?
Misc.Boss Snow Plow