Testarossa shaking when stops

Hello my testarossa is running well , idle good , and accelerates with no issues . But when it stops i.e. At traffic lights you can feel it's shaking like u are in the boat (left right left right) . Other than this the car runs very well , no idling issue. What can it be the problem ? The engines mount ?? But the steering wheel and gear knob is not jerking

 

Hi Joe , I park the car and engine on is also shaking , so yes don't push the brake pedal also shaking

 

I was thinking of that too but the steering wheel and gear knob is not shaking ... Strange !!!!.....so I thought probably it's not the mount

 

Oh yeah probably you are right I was comparing with the front wheel drive Nissan car that I am driving . Yes and I will also check those mount .. Thanks for the info

 

Okay here is the video , it seems to me that the HISssssssss sound very strong from the Left bank , the Right seems ok . This is taken after I start the engine for 2 mins . What do you think the problem is ?

https://vimeo.com/163991029


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Joe , when you mentioned getting wrong air does it mean I will hear a lot of HISSssssss sound at that engine bank ? I took a video of that ... How to solve that issue ? It's that cause by vacuum leak ? Or tuning ?

 

Thanks a lot !!! I used my finger to check on the rubber before I spray carb cleaner to test those area cannot be reached .. This is what I found !! The rubber hose splited . Now the problem is probably the hose is too old and the pipe is too big , after I trim the rubber hose and re insert it splits again so looks like I have to change the hose . And btw may I check after replacing the vacuum leak do I need to retune the engine ??





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Thanks to Both experts ! Joe and Vincenzo.
I managed to insert the hose again to the pipe . The hisssssss sound is now gone and the car is no longer shaking like before . Thanks again !!!!