Please help 07 GMC Yukon Denali mystery

[Leequiz]

I need to know what the part circled is and if it not being connected would cause a really rough low idle. My truck did just that and when I opened hood this was just hanging. 07 Yukon Denali xl 6.0 Thank you

 

[Leequiz]

Btw it is on top of the ( looking at truck) right side top of shock housing next to and lower than fuse box

 

[Jimmyy]

You'll have better luck with a reply if this was in the correct section. Your in the 2021+ section.

 

[Seamus]

That looks like the top of the shock up front?? I had a 2013. That would be the connection to your autoride shock. Has nothing to do with motor, just the ride.

 

[donjetman]

I need to know what the part circled is and if it not being connected would cause a really rough low idle. My truck did just that and when I opened hood this was just hanging. 07 Yukon Denali xl 6.0 Thank you

you sould have a 6.2 liter engine, and that is an electrical connection on your shock for autoride, nothing to do with your engine.

 

[Joseph Garcia]

Is there a wire connected to the top of the shock on the other side?

 

[iamdub]

I need to know what the part circled is and if it not being connected would cause a really rough low idle. My truck did just that and when I opened hood this was just hanging. 07 Yukon Denali xl 6.0 Thank you

After powersquinting, I see that that's the harness connector to your AutoRide shock. This would have absolutely no affect on the idle. Have an engine light on? You should at least have a "Service Suspension System" message. That connector being unplugged would make that shock soft. If the others are connected and the system is otherwise operable, that'd make for some squirrelly handling.