Engine Vibration

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Sep 16, 2017 | 01:47 PM

Lee719

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Driver School Candidate

Joined: Aug 2017

Posts: 6

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From: Ontario

Engine Vibration

Hello everyone , I'm new from this forum , from toronto , first of all just want to say hello to you all , recently just purchased 2014 IS350 F sport and i love it, but just wondering if anyone came through this problem ? when start up the car and the engine do have little vibration i can actually felt from the seat but dosent happen to often , is this normal or I'm just too sensitive , because I never had this problem with my old 06 IS250 AWD , what is the problem I'm facing lol

Thank you very much

Sep 16, 2017 | 05:34 PM

arentz07

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Joined: Nov 2016

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From: GA

Quote:

Originally Posted by Lee719

Congrats on the new car!

In my 2016 IS 300, which has the same engine as the 350, there is some vibration at idle in two scenarios:

when the car is cold-started and is idling high
when I am stopped at a light and the AC compressor and heater are completely turned off, which reduces the idle to about 600 RPM.

It's been like that as long as I can remember. Do these situations describe what you're running into, or is it something else?

Sep 16, 2017 | 05:54 PM

Lee719

Thread Starter

Driver School Candidate

Joined: Aug 2017

Posts: 6

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From: Ontario

Quote:

Originally Posted by arentz07

Congrats on the new car!

In my 2016 IS 300, which has the same engine as the 350, there is some vibration at idle in two scenarios:

when the car is cold-started and is idling high
when I am stopped at a light and the AC compressor and heater are completely turned off, which reduces the idle to about 600 RPM.

It's been like that as long as I can remember. Do these situations describe what you're running into, or is it something else?

Thank you very much for reply Arentz 07 , I would say the cold-started and idling high , and I dont recall happen when im stopped at a light and AC off , did you have chance to bring back to dealer to look at it ? I called Lexus for Diagnose but they will charge me $120 something per hour lol , well I just step into the other shop they cant detect anything from the computer , so I really dont know if i just leave it or Lexus will look up for this with no cost ... lol but its kinda annoying sometime

Sep 18, 2017 | 08:07 AM

arentz07

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Joined: Nov 2016

Posts: 9,640

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From: GA

Quote:

Originally Posted by Lee719

I haven't done so, since it hasn't seemed like the car was broken or anything

But, AFAIK there was a TSB to raise the idle on the car to eliminate the roughness? Maybe someone else on the forum can chime in. Honestly it doesn't bother me because it's once in a blue moon I actually notice this.

Sep 18, 2017 | 08:35 AM

Crossxup11

Pit Crew

Joined: Apr 2016

Posts: 130

Likes: 11

From: Ontario

I can confirm that what you're experiencing is normal. I have a 2015 IS350, and when I first started experiencing that I thought i had bad engine mounts (dealer checked them for me as a courtesy).
Turns out our engine just isn't a morning person.
Nothing to worry about.

Sep 19, 2017 | 01:18 PM

Sybaritic

Pole Position

Joined: Feb 2017

Posts: 227

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From: Oakville, Ontario, Canada

Based on my experience with direct injection engines, I think these vibrations seem to be normal despite how un-Lexus like they feel. I get the same vibrations. Feels like there is misfire, but I remember experiencing these same vibrations in Kia fully-direct Injected engines (our IS350s are half direct and half port injection).

Sep 20, 2017 | 10:15 AM

Dreamcast

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Joined: Jun 2017

Posts: 150

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From: Victoria

2016 is350 here and i get the vibrations too. Happens every few seconds during idle and even after the engine is warmed up. Revs dip slightly when it happens. Its noticable especially after driving a renault megane which you couldnt tell the engine was turned on.