Two problems related to loud engine noise have been reported for the 2006 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Honda Civic based on all problems reported for the 2006 Civic.
Twice while driving the bolts to the torque mount and engine broke. And the cars engine fell on that side. Making very loud sound and the car stoped not being able to drive. Both times it happened on residential street. Had it happened on the freeway. There would have definitely caused a very dangerous life threatening collision. Went to pick a part looking for the bolts. Doing so found other cars there having the same issue.
Lot of vibrations. Howling noise when in reverse. I checked under the hood and found the hydraulic motor mount leaked and should be replaced. I heard there's a lot of this kind of problem in the internet. I guess you guys need to look deeper into this problem to protect us consumers.