Hi, I have a 2002 Cadillac Escalade recently it dash gauges started acting up they will be in normal operating position then all of a sudden they just drop all they way down for a few seconds then back to normal I noticed my volt gauge is moving back and forth as well I had the alternator and battery tested and both checked out any idea what could cause this, thanks in advance

 

In that time frame, GM had problems with the stepper motors for the gauges. They are not expensive and if you can solder, it is fairly easy to do. If you are doing it, replace all 6 while you are in there to avoid having to do the job again at a later date for a different gauge.

 

Thanks for the response