The heat sheild on the muffler creaks and pops when hot.......after engine shut off its really loud. Dealer says it normal. 2010gmc 1500 flex fuel v8 stock.

rondora · by **rondora** [OP] » Apr 15 2011, 8:27pm

The heat sheild on the muffler creaks and pops when hot.......after engine shut off its really loud.
Dealer says it normal.
2010gmc 1500 flex fuel v8 stock.

Related Topics Transmission heat shield...? spit and sputter and pop 2008 dashboard crack Fuel gauge on crack? How widespread is the Castech head crack? Thinking about getting a bug shield.... Need a Bug Shield 06 Sierra Bug Shield Recommendations Is Your Truck Bed Secure? Pop N Lock Tailgate Lock Can Add T 2005 Silverado Bug shield wind noise Aeroskin Low Profile Bug Shield *pics* how to use heat? Heat/AC never shuts off Heat/A/C only on high

Austin · by **Austin** » Apr 15 2011, 8:40pm

Completely normal. It is metal expanding and contracting with temperature differentiation.

11Silverado · by **11Silverado** » Apr 15 2011, 9:19pm

Yup. You've never heard it doing this with any othe car? I've always noticed that. Got that tink, tink, tink crack sound..

chevydevil · by **chevydevil** » Apr 16 2011, 1:06am

My firebird has a after market exhaust on it and it does the same thing. I thought the same thing when I first heard it but like everyone said its normal. Can't wait to put duals on the truck

sent from the ravens nest via tapatalk

Howzitbra · by **Howzitbra** » Apr 16 2011, 1:26am

Yup, my 07 Sierra does the same thing. Sounds like a dang campfire.

rdss · by **rdss** » Apr 16 2011, 2:45am

My 00 4.3, 03 SS 6.0, and 10 5.3 all do it.

starspangled6.0 · by **starspangled6.0** » Apr 16 2011, 2:47am

Austin wrote:Completely normal. It is metal expanding and contracting with temperature differentiation.

Right on. Isn't it nice to know that you're normal, rondora?

WingNut · by **WingNut** » Apr 16 2011, 3:26am

Funny, I don't remember mine popping and cracking all that much. I may be deaf in that frequency range.

EKinMN · by **EKinMN** » Apr 16 2011, 4:25am

My '03 Avalanche did it, and my 2010 REALLY does it. It's even worse when it's wet (I suppose because it's cooling faster). I can here it in the house.

....normal.

A-Iron · by **A-Iron** » Apr 16 2011, 4:30am

Whaaaaaaat? I just hear jet engines running all the time.

Random Image Attachments
Couple older Chevy's Attached by: Chasmanian
First mods 2011 silvy Attached by: Brando22
New 2011 Sierra with tan... Attached by: dpaul
RC 3.5 inch lift is goin... Attached by: dpaul

The heat sheild on the muffler creaks and pops when hot.......after engine shut off its really loud. Dealer says it normal. 2010gmc 1500 flex fuel v8 stock.

Exhaust pop and crack on heat shield

Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Re: Exhaust pop and crack on heat shield

Common search terms

Who is online

Exhaust Forum
Topics regarding exhaust systems beginning at the headers down the pipes and through the catalytic converter and the mufflers and exhaust tips. We can also discuss emissions, performance cat back exhausts, or any exhaust related topics.
Post a new topic To create a new topic in Exhaust, click this button:
Previous topic Next topic