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Showing results for tags 'Exhaust noise'.
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Alright, before you say you don’t hear anything let me explain first. This video posted below is my 2021 Trail Boss 3500k miles and has the most annoying exhaust sound. I know there’s some serious pro’s on here who could tell me what’s going on. Essentially any time I start it up high RPM, accelerate, or decrease RPM’s I’m greeted with this annoying metallic rattling noise coming from exhaust. Took it to dealer who claims it’s normal (per-usual) and says it’s the liters I can hear in the exhaust tone. They checked exhaust donuts and heat shields and found no issue. However you can hear a rattle and what sounds like an exhaust leak. Was told it’s a flapper but it’s not, flapper is toward back passenger side. This is front passenger side. I could best describe it as escaping air coming from somewhere near the manifold I’d assume. Almost like a metallic farting exhaust noise for lack of better description. Videos to follow of noise while commuting. -
I’m new here so thank you for your patience. I bought a new 2018 Sierra SLE 4WD Crew Cab in November 2017. Within a few months of ownership, I began to notice what sounds like exhaust noise from the drivers firewall/floor area when feathering the gas at various speeds. It’s especially apparent in 4 cylinder mode but I hear it in both modes. It’s driving me absolutely nuts. The dealer says that there is nothing wrong and it’s just lifter noise. Thoughts?
