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Showing results for tags 'chirping'.
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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? FullSizeRender.mov
2006 GMC Yukon Chirping
Flagcoach posted a question in Ask the GM TechnicianI have a 2006 Yukon that we love, but recently we have been having a few issues. All of a sudden I have a horrible chirping/ticking coming from under the hood. It seems like it is on the drivers side (but that could be because that's the side I am on). I have run Risolene through it thinking it is maybe a lifter. I have replaced the tension pulley and another pulley that had a little noise. Belts look good. I am still having the issue. It gets louder and more noticeable as I am accelerating (super embarrassing at stop lights). It seems to get better once the RPM's drop, but maybe there is just enough road noise that I can't hear it. As mentioned, I love this truck and want to make it right. Any suggestions. I have included a clip. You can kind of hear the clinking chirping. As I accelerate it becomes more pronounced. It sounds like it is coming from near the bell housing. Thanks for everything!