Welding on your truck question.
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Regardless, I always disconnect, even if it is a myth, why risk frying your PCM, radio and countless other sensitive electronics when the precautionary only takes a couple seconds.
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I had an 04 audi a4, and had a big stereo in it. I competed with it so I needed some extra support in the trunk lid to hold dynomat. So I went to welding in some braces without disconnecting the battery. About 3 minutes after I finished, I heard some cracking. Then an explosion. It was my back glass. The welder had shorted out my rear window defroster and caused it to superheat and explode my window. true story! disconnect the battery!
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I had an 04 audi a4, and had a big stereo in it. I competed with it so I needed some extra support in the trunk lid to hold dynomat. So I went to welding in some braces without disconnecting the battery. About 3 minutes after I finished, I heard some cracking. Then an explosion. It was my back glass. The welder had shorted out my rear window defroster and caused it to superheat and explode my window. true story! disconnect the battery!
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Well I needed some emergency welding on the trailer today. 4 of my ramp gate cross members had broken the welds and made loading/unloading stuff dangerous. I stick welded everything back together with the trailer attached to the truck. The wiring harness was detached but the battery was left attached. No issues.
Guess it's just a good safety habit to disconnect the battery, even though it's not necessary.
Guess it's just a good safety habit to disconnect the battery, even though it's not necessary.