Recent content by hp500880

I wanted to post a conclusion for anyone who reads this thread in the future. The noise ended up coming back as expected. I then replaced the belt tensioner and belt with Honda original parts. The sound and vibration are now completely gone.

Should I replace the tensioner and belt without waiting for the sound to reappear?

Found another person with the same issue.

Thanks for suggesting this. I de-tensioned the serpentine belt tensioner and spun all the pulleys by hand. They all felt normal. While doing this I ended up de-tensioning the tensioner several times, which somehow made the sound disappear. I think the tensioner must be failing. If the sound...

I need help determining what is causing this noise in my 2012 Civic LX Automatic. The noise is worst on a cold start and occurs when the car is in gear. It is a bit louder in reverse than in drive. The noise dies down after 5-7 minutes of driving but there is still abnormal vibration. The car...