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Is this Ground Related?

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Old Mar 7, 2017 | 03:44 PM
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Default Is this Ground Related?


Can anyone tell me what this lug is for? It's on both sides by the grounds. I see OEM pics that show the tabs have rivets in them but not sure if I should worry about that or not.
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Old Mar 7, 2017 | 04:36 PM
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The picture is a little large but if I'm looking at it correctly that is the passenger side frame rail ground area, which would be G102. I believe G102 controls lighting in the front area (fog [if you have a non-Z06 C5], signal, etc).
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Old Mar 7, 2017 | 04:43 PM
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Originally Posted by Velocity_Vette
The picture is a little large but if I'm looking at it correctly that is the passenger side frame rail ground area, which would be G102. I believe G102 controls lighting in the front area (fog [if you have a non-Z06 C5], signal, etc).
Pretty sure G102 is the plug attached to the bolt just left of the arrow in OP's picture.
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Old Mar 7, 2017 | 05:06 PM
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Those 2 should be riveted together. Looks like someone removed your front cradle and broke the rivets by using an impact gun to tighten them
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Old Mar 7, 2017 | 08:03 PM
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I thought it was one of the four bolts that go through the frame and engine cradle. There is a grounding tab there.

Last edited by Rob 02; Mar 7, 2017 at 08:05 PM.
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Old Mar 8, 2017 | 12:10 PM
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Thank you everyone for the info. I apologize for he pic size. That was my first uploaded pic and I didn't know how it would show up.


What's the reason for these being riveted and will it be an issue that they are not? None of them are any longer.
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Old Mar 8, 2017 | 12:50 PM
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I'm not sure if it is for grounding purposes or to keep the bolt from spinning or both.
It a good general practice to have all of the frame components grounded together to maintain the same electrical potential.

It looks like someone has tightened the engine cradle with an impact wrench an one time and broke the rivet loose.
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Old Mar 8, 2017 | 02:15 PM
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I had the engine rebuilt last June. The shop that rebuilt it did that. Is it something I should be worried about?
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Old Mar 8, 2017 | 02:31 PM
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I wouldn't worry too much.
You could loosen that bolt and put a new rivet in if you want.
It is really not that critical IMO. There are three other bolts.

Last edited by Rob 02; Mar 8, 2017 at 02:32 PM.
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Old Mar 8, 2017 | 02:34 PM
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I would be more concerned about the coolant hose rubbing in the A/C fitting. It could eventually wear through.
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Old Mar 8, 2017 | 02:41 PM
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Originally Posted by Rob 02
I would be more concerned about the coolant hose rubbing in the A/C fitting. It could eventually wear through.
Yea, they screwed a lot of things up. We are in negotiations now to resolve the issues.
I have it down working on seats, interior heat barrier and grounding issues. Once I'm back to the point of driving it, I'll either have them fix it or fix it myself.


(It's hard to find good help in my area )
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Old Mar 8, 2017 | 03:04 PM
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There should be a few good shops near Atlanta. The shops that specialize in Corvettes tend to be a lot quicker and more efficient. When they are set up for Vette's it can be cheaper.

It may be worth it to rent a car to go to the right shop.
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Old Mar 8, 2017 | 04:00 PM
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Just looked.
The coolant reservoir hose hoes under the A/C line.
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Old Mar 9, 2017 | 08:23 AM
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Originally Posted by Rob 02
Just looked.
The coolant reservoir hose hoes under the A/C line.
Yea, I showed the shop a pic of one I found online that was routed correctly and they still wouldn't accept fault.
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