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low voltage

  1. 05 Trailblazer Low Voltage from the Alternator

    Hello All, I have an 05 Trailblazer I have owned since 2006 and I had to replace the positive cable earlier this week. I took it on a long drive over good and poor dirt roads and decent paved roads with no problems and went home. About an hour later on a drive to the gas station, the...
  2. Voltage drop at idle at normal op temp

    OEM Issues
    Hello everyone, Tried searching this and found some close ones but not quite. Here's the issue. 2006 Envoy XL SLT L6. Vehicle runs fine on cold startup however once the vehicle is a regular operating temp the voltage drops significantly when idling. Runs at about 550 rpm at idle however the...