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I have a patch panel all ready to be welded in. The repair is on the rockerpanel/sill and I am having a welding shop do the work. I was wondering if I should what if any precautions I should take when I have it welded in? Disconnect the battery?
 

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Yes, whenever you weld on any automobile with a computer you should disconnect the battery. I know, I know, everybody does it without disconnecting but that's what the recommendation is.
 
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As a general rule, disconnecting the battery is all that is needed. The ground should be placed as close to the area being welded as possible. The idea is that you don't want the current to decide to take a path throught the computer. I have had people say that they had to disconnect the computer. On some cars, that can cause some real problems. I have also heard people say that you don't have to disconnect the battery. I would just to be safe. It's easier, and cheeper than replaceing the computer.
 

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i wouldnt worry about disconnecting battery driving a '57 chevy lol but if u got those newer cars id sure would..
 
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