05-25-2020, 03:52 PM | #1 |
Drives: 2018 1LE SS Join Date: May 2020
Location: Jacksonville, FL
Posts: 6
|
Metal "flapping" sound after 2" header install (video included)
If you listen to the video with a decent pair of headphones you can easily hear the sound.
About a day or two after my 2" header install on my 18 ss 1le, if you drive with the windows up no music on and ac off or on low you can hear what is almost like a rattle type sound that follows you up and down through the rpm range....nothing seems to be hitting the frame, heat shields or on the headers. Just trying to get some input on if others have had a similar sound. Last edited by V1LE SS; 05-25-2020 at 11:07 PM. Reason: Video added |
05-25-2020, 04:13 PM | #2 |
Drives: 2019 ZL-1 Join Date: Feb 2009
Location: Troy, MI & Naples, FL
Posts: 2,019
|
More likey a clamp connecter etc.
The injectors are nowhere near the headers. Also look at your plug wires, no contact? And your steering shaft....
__________________
2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles...
2012 Yukon XL Denali w/ 6.2 AWD |
05-25-2020, 04:18 PM | #3 |
Drives: 2018 1LE SS Join Date: May 2020
Location: Jacksonville, FL
Posts: 6
|
Headers are currently welded onto the midpipes, no leaks or movement there, all clamps back are good, sound is coming from right behind the cluster towards the driverside firewall area of the motor...steering shaft does make contact only on hard right turns, can't imagine it can move that much just driving straight down a highway. I'm thinking something is reverberating through the headers thats allowing me to hear it inside the cabin.
__________________
18' MBM 1SS 1LE, PDR
2" Speed Engineering headers Lethalgarage flex fuel sensor LT2 non ported Intake manifold Rotofab-CAI mishimoto catchcan |
05-28-2020, 09:52 PM | #4 |
Drives: 2019 ZL-1 Join Date: Feb 2009
Location: Troy, MI & Naples, FL
Posts: 2,019
|
Sounds like steering shaft is contacting headers and telegraphing the sound thru... maybe..
__________________
2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles...
2012 Yukon XL Denali w/ 6.2 AWD |
|
|
Post Reply
|
|
|