So I’ve been having this issue and seems progressively worse, I took the truck into the dealership and they were telling me the chirping noise I’m having is the Passive exhaust valve however I have the AFM disabled. And the truck still makes the noise with the PEV clamped open. When I was pulling into my driveway while the truck was idling it was even making the noise and it’s nowhere close to where the PEV is. Wondering if it’s my catalytic converters failing? Has anyone else seen the same issue?
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