When I get it back, I'll report my findings. When it gets out of warranty, I intend to do a cam and a true DOD/AFM delete. I'll report on that too
Thank you. Yup, it's the tick TSB
And I may have found the answer.
I took mine in today for the noise and a coolant leak. They just called and said they're replacing the driver's side cylinder head.
Well. I got my exhaust on today. I can definitely say it’s not the flapper valve or the stock cats. As stated above, my oil is a little over full. I may send it for analysis and see what happens.
Spastik Monkey started following help with header choice, Wilwood 14.25" Front Brake Conversion, Service history and resale value: replaced 8spd in 2017 and and 2 others
Spastik Monkey replied to Spurshot's topic in 2014 / 2015 / 2016 / 2017 / 2018 Silverado & Sierra Accessories & ModificationsAwesome write up. I’m also curious if there’s a more budget friendly swap from a Camarillo or ctsv
I have V4 disabled. Still have the noise. I'm leaning towards valvetrain. It does it in v8 mode.
Well, I got rid of the stock cats with the LTs and I still hear it.
The dealer told me it was the exhaust flapper. I heard it in one of my loaners too. The catback I'm getting deletes that. I also have AFM disabled.
I've got a MBRP cat back coming. I'll report if anything changes after it goes on.
Spastik Monkey replied to Greaser5's topic in 2014 / 2015 / 2016 / 2017 / 2018 Chevrolet Silverado & GMC Sierra 1500Depending how many miles are on it when you sell it, it will either help or hurt.
Spastik Monkey replied to hotrdlx's topic in 2014 / 2015 / 2016 / 2017 / 2018 Chevrolet Silverado & GMC Sierra 1500Same issue. 17 6.2
I'm gonna jump in. Ive got the flutter. Sounds metallic. I hear it usually going up a hill right before a downshift. 1500-1800rpm. It's usually when the truck is warm. Sounds like footwell. I recently put on LTs, and the sound is still present. Is this different than everyone else's noise?
Spastik Monkey replied to Spastik Monkey's topic in 2014 / 2015 / 2016 / 2017 / 2018 Chevrolet Silverado & GMC Sierra 1500That's what I normally use is redline. I had seen the NS stuff, but didn't know one that had used it.
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