I have a 2013 CX-5 that was purchased new in April 2012. I replaced the tires once maybe two years ago. I also had the ECU replaced when the car started stalling a couple of years ago as well. I started noticing a noise after the ECU was replaced but I can*t say that the two things are connected. My wife drives the vehicle more than I do.
The noise is a low frequency *thrumming* that increases in tempo slightly as the speed increases. It sounds like *dum-dum-dum-dum-dum...*. My first guess was that maybe one of the tires is out of round or is imbalanced somehow but the they have been rotated and balanced and the alignment has been done a couple of times since I started noticing it. The noise seems to be coming from the rear of the car, not the front. I even stuck my head out the window when my wife was driving to see if it was more noticeable from the outside, but I couldn*t hear anything besides the wind noise.
The noise is there no matter which road I*m on (streets or highway) so it*s not a particular bumpy or poorly paved road that I*m hearing. It*s not there when I*m idling.
I tried recording the noise on my phone. I apologize that the video is only showing my radio dials, but I just stuck my phone on the vent clip to record. You probably have to wear headphones or have a good audio set up to notice it. Around the 30 second mark is where you can hear it the best, but it*s very subtle.
Here is the video
I*m afraid if I take it in to the mechanic, he*s going to tell me that I need to do some major repair to fix it (shocks, bearings, who knows) or they*re going to charge me to look at it and not find anything and would like some ideas before going.
The noise is a low frequency *thrumming* that increases in tempo slightly as the speed increases. It sounds like *dum-dum-dum-dum-dum...*. My first guess was that maybe one of the tires is out of round or is imbalanced somehow but the they have been rotated and balanced and the alignment has been done a couple of times since I started noticing it. The noise seems to be coming from the rear of the car, not the front. I even stuck my head out the window when my wife was driving to see if it was more noticeable from the outside, but I couldn*t hear anything besides the wind noise.
The noise is there no matter which road I*m on (streets or highway) so it*s not a particular bumpy or poorly paved road that I*m hearing. It*s not there when I*m idling.
I tried recording the noise on my phone. I apologize that the video is only showing my radio dials, but I just stuck my phone on the vent clip to record. You probably have to wear headphones or have a good audio set up to notice it. Around the 30 second mark is where you can hear it the best, but it*s very subtle.
Here is the video
I*m afraid if I take it in to the mechanic, he*s going to tell me that I need to do some major repair to fix it (shocks, bearings, who knows) or they*re going to charge me to look at it and not find anything and would like some ideas before going.
Last edited: