NARDA1

Thanks but apparently won't fit my 2011.

Do you have a part number for the sway bar?

AF5314 is a Fram part number. For your truck the ACDelco number should be A3181C. A Wix filter would be 42487 for light duty and 42488 for heavy duty.

Do you remember which one went where? lol I changed my battery a while back and don't remember the bolts being different lengths.

I had a similar problem. System was slightly low on freon, I was also getting vapor coming out of the dash vents. System was refilled and noise went away for a while but returned. Further inspection found a pinhole leak in the condensor. Replaced condensor and refilled system. Problem solved, no issues for over a year. When I put the claim in to the extended warranty company they indicated that the leak in the condensor was a common problem with these trucks.

You indicated that the sensor has been replaced before. In that case I would check the wiring and connectors and replace the sensor if it is bad (use an OEM sensor).

You might consider this or something similar to adhere that panel. https://www.oreillyauto.com/detail/b/3m-4307/paint---body-repair-16614/sealers---adhesives-25204/panel-bonding-adhesive-25320/3e6756f6e8a0/3m-200ml-adhesive/08116/4462061/2011/chevrolet/silverado-1500?q=panel+bonding+adhesive&pos=0

I had the same issue with an 06 crew cab I had. My issue was caused by the floor liner mats I installed and the area where the door perimeter weather strip ends are butted together at the bottom rear of the drivers door. Melted snow and ice would pool in the mat and flow to the groove in the door weatherstrip and back to the butted ends, and then flow threw the butted ends of the weatherstrip into the channel under the sill plate, then when the brakes were applied the water was forced to the front and overflowed into the foot well. The bad part of this was the water contained salt. I removed the door weatherstrip and replaced it so the butted ends were in the area between the fuse panel access and the floor. I also replaced the floor mats with ones that had a lip on them to stop the water from draining to the door area.

Chevy Direct Parts is showing 17801236 being available you could call them to verify. https://www.chevydirectparts.com/oem-parts/gm-remote-start-17801236

Did you check under the seats? It is probably a cover for some controls under there.

Searched the part number on Ebay. http://www.ebay.com/itm/GM-OEM-Taillight-Tail-Light-Rear-Junction-Block-Bracket-15031996-/262455773033?hash=item3d1b954769:g:xiQAAOSwYXVY0ZrC&vxp=mtr

Thinking about buying a new truck. This is what I spec'd out. .