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2010 Silverado 1500

This wire was hanging by a thread from the bolt circled in red (under the hood, below the windsheild, driver's side). The wire broke off when I touched it.

What did the other end of the wire connect to? Was it important?

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I'm pretty sure this is a ground strap going to the hood. Why it's there, I don't know. Both my 2006 Silverado had one as well as my 2004 Suburban. Is it important? I really couldn't say. It won't keep the truck from running. GM put them on there for a reason, though. It'd be very easy to replace, though. Just get a length of wire, put connectors on either end, put the old wiring loom on it, then relocate it between the cowl and the hood. Oh, then close the hood.

EDIT: I went out to take a picture of the one on my 2018 Silverado and lo-n-behold ... it doesn't have one. I know my older Silvy and 'Burban had the strap. I had used the lug on the body side of 'Burban to ground a pair of aftermarket electric fans I installed.

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  • Is an under-hood light an optional extra? Maybe it's cheaper to always ground the hood even when the lamp isn't installed. Commented May 4 at 17:31
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    @AndrewMorton - Not on the newer GM trucks. I did have a 91 Suburban which had a retractable underhood light wired up to it. It had enough wire you could pull it down and take the light all the way to the back. Plus, it had a magnet in the base of the light so you could put it somewhere and it would stay. One of the coolest features of that big beast, lol. I think the reason for the ground strap might be to help prevent corrosion. With it grounded, it's less likely. Commented May 4 at 18:26
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    Related: What is this wire?
    – User1974
    Commented May 20 at 19:25
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    This ended up being the right part: Ground Cable - GM (15179982).
    – User1974
    Commented May 23 at 18:17
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    @User1974 - Just a regular ground strap duded up to look purdy, lol. Commented May 25 at 23:58

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