Creaky Dash/Radio/Climate area

JacobC1983 · October 30, 2019

Does anybody else feel like the dash area around the climate controls and radio makes a lot of noise now that the weather is cold? I get it sometimes in the heat with the air conditioner running, but I feel like the thing is creaking all the time in that area with the cold weather and turning the heater on. I am about to take the whole thing apart and start shoving foam everywhere.

mafd2 · October 30, 2019

Have fun lol.

cltsig · October 30, 2019

I had what sounded like a creak somewhere in the lower firewall area. Drove me and the dealer nuts for a while. They didn't get to the picture level above but did take off some parts and it didn't get any louder. GM tech finally asked them to check a wiring harness near the transmission. Bingo, 10 minute fix after keeping the truck for a week. I think there is a TSB on it but I could be wrong. Mine was an early build (Oct/Nov 2018 I think) and that is the only issue I've had.

mafd2 · October 30, 2019

9 minutes ago, cltsig said:

I had what sounded like a creak somewhere in the lower firewall area. Drove me and the dealer nuts for a while. They didn't get to the picture level above but did take off some parts and it didn't get any louder. GM tech finally asked them to check a wiring harness near the transmission. Bingo, 10 minute fix after keeping the truck for a week. I think there is a TSB on it but I could be wrong. Mine was an early build (Oct/Nov 2018 I think) and that is the only issue I've had.

Above pic is from a member here who had a leaking evaporator core. Not a pretty site when the dash comes out...

JacobC1983 · October 30, 2019

8 minutes ago, mafd2 said:

Above pic is from a member here who had a leaking evaporator core. Not a pretty site when the dash comes out...

Luckily taking apart the area around the climate controls isn't anywhere near that laborious.

Moend · October 31, 2019

15 hours ago, cltsig said:

I had what sounded like a creak somewhere in the lower firewall area. Drove me and the dealer nuts for a while. They didn't get to the picture level above but did take off some parts and it didn't get any louder. GM tech finally asked them to check a wiring harness near the transmission. Bingo, 10 minute fix after keeping the truck for a week. I think there is a TSB on it but I could be wrong. Mine was an early build (Oct/Nov 2018 I think) and that is the only issue I've had.

Can you share a picture of where the issue was. And what did they use to fix it.

Please and thank you!

cltsig · October 31, 2019

I don't have any pictures as the dealer did the repair. It was some type of wiring harness rubbing near the bell housing of the transmission. It was worse when cold over low speed bumps. I would crawl under there and have a look around that area for any wiring harnesses appear to be rubbing against something they shouldn't.