Has anyone had an issue with a "clunk" when coming out of park or while braking?

I have been working in the car business for Honda for over 25 years but in sales not service. I have seen my share of bad engine mounts. In fact on any v6 appraisal I do I lightly power brake it so I can tell if the engine mounts are bad. Odyssey's are notorious for bad mounts and they are not cheap to replace because some of them are electronically controlled.
Anyway, my initial thought was my issue is a bad engine mount. Since you can't really power brake a Clarity plug in I couldn't duplicate the issue. When I had it on a lift all the mounts looked good. We also tried "driving and braking" while it was up on the lift. There was no signs of excessive drivetrain movement or the loud clunking noise I would sometimes experience. That is one of the reasons it took this long to diagnose. Everything appeared to be normal. If you have ever seen a v6 Honda with a blown engine mount and you power brake it you know what I am talking about. The motor moves dramatically in the engine bay. It is very easy to spot and not something any decent mechanic would miss. That was not the case with my Clarity plug in.
Regardless I am glad they were able to find the issue. Well, hopefully what was the issue. I haven't driven it the last few days because I have been driving dealer cars. I will post again once I get to drive it a few hundred more miles and confirm the problem is fixed. Since I could manipulate the mount so easily by hand I am confident this was my issue. If I can move the rubber portion of the mount with just my fingers there is no way it can hold 200+ horsepower or torque being applied to it. Hopefully this is the only cause of the clunking noise I have been experiencing. Time will tell. With that said did the rubber mount just prematurely fail or did something else cause it fail? That is the million dollar question?

 

You are welcome. I imagine this thread will help many people as their Clarity plug ins start to accumulate the mileage I already have. Since most dealerships don't see these often, especially those with high mileage like mine, the more data we share will help future owners with issues like mine. I don't plan on getting rid of my Clarity any time soon. Hopefully it continues to be just as reliable as it has been the first 100k miles for the next 100k miles. I am nervous since there aren't many with the high mileage I have already out there in the world but my fingers are crossed!

 

I agree. An engine mount failing after 120k miles is normal wear and tear.

 

I will be the first to admit I am an aggressive driver. Most of the time I am in sport mode with the regenerative braking set to high. Maybe that contributed to the engine mount failing?
I have been driving more in normal mode lately. I still use the paddle shifters for the regenerative braking but not every time I slow down or stop. That is why I prefer sport mode since it keeps the regenerative braking setting. That might not be the most efficient way to drive but I like the consistency of how it slows down when I release the gas pedal. I have driving several Tesla's and I prefer how you can set the regenerative braking on them.

 

I have put about 200 miles on it the last couple of days. Not once has it made the loud clunking noise while braking. Not at all actually. I did apply the brakes hard once because of a sudden slow down by the car in front of me and nothing. I will be putting another 200 to 300 miles on it over this weekend. If I experience no issues by Monday I am going to say the problem has been fixed.