I'm thinking it's an air intake system leak between the filter box and the throttle body.
2015 Suburban high pitch noise in cabin
We just bought a 2015 suburban ltz 3 weeks ago. We have noticed a high pitch noise on the driver side that is like a ringing in the ear type of noise. It is occurring when you accelerate. Not sure what the problem is?! The vehicle has less than 1000 miles on it and the noise is so distracting its a pain to drive. Does anyone have any suggestions?
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