I have a 2004 Chevy Trailblazer there is a strange clicking noise in the back passenger side panel of my third row seat when I pull out one of the 40 amp fuses in the fuse box underneath the hood it stops it's an ignition fuse I have replaced the 125 Mega fuse several times and it continues to short out any helpful answers or tips would be incredibly grateful my gauges go crazy and dropped to nothing it says on my battery gauge that it's not charging that led me to believe that either the battery was bad or the alternator was bad I tested both and found that they were both fine my radio and heating / AC stops working from time to time and when that happens the clicking noise starts and continues no way to stop it unless I pull the fuse please somebody help me

Hi Lisa, I take it that you have the long wheel base version. The clicking you're hearing is an actuator for the HVAC. These can be blown by a disconnected battery. With an intermitent problem like this, check your battery connections, make sure they're good and tight. Gauges going whacko, is probably your ignition switch, or ground. Check the ground on the transmission hump on passenger side. 1 screw to pull the carpet back, it will be right under there. This ground handles a lot of things.

Strange intermittent problems like this can be caused by a faulty ground in the vehicle - I would check all the ground straps for loose or corroded connections. Looking at trouble codes in the vehicle using a code reader may also shed some light on this.

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