Harsh Engine stop when turning off car

[Krasteff 8]

Hello all, 

This is probably an obscure problem but what could cause a "too harsh" stop of the Engine while turning car off? 

The Engine seems to be in very good condition with great mileage, great startup, feels balanced and smooth enough but is like when you shut the Engine it vibrates too much and the stop is a little too immediate like if there is too much friction if you know what I mean but I guess the real reason is not friction but excessive Engine vibration while shutting off, the Engine mounts should be good as I don't feel anything while changing gears, the only two non stock things I have is egr Block plate and ccv to atmosphere 

Edited November 16 by Krasteff

[MikeT 737]

Engine mounts I would guess....if they have never been changed, that will definitely be part of it.

[Krasteff 8]

Yes is probably the most likely thing, even if I don't feel anything strange while changing Gear Engine mounts could still be bad, right? Also the central one or only the side ones? 

Edited November 17 by Krasteff

[Willys 741]

Engine mounts aren't that costly but the front centre one can be a nasty one to replace.  Also do not buy the performance version unless you like a harsh driving experience.....stock ones are far better.

 

[Krasteff 8]

Thank you, just for knowledge, what are other classic symptoms of bad engine mounts?

[Willys 741]

Vibrations....and the sounds that come from them,

[Jasonlo 0]

I guess because 450 doesn't have throttle body, which can smooth out the diesel engine shut off.