2018 Dodge Challenger SXT
I have taken this car in 5 times. And five time they have told me it is a normal noise. i ask to please explain a cause for this normal noise. They said it is Harmonic noise. I would assume this to be correct but if you give throttle and the noise fluctuates with rpm that would not be a harmonic noise would it? All during cold starts last for 3 minutes loud then dissipates to a low low hum. Who at dodge can I get in touch with? I am royally discouraged. I have only 12k miles and noise started at 375. Any help would be greatly appreciated.