any is350 awd driver experiencing vibration while stopping and the car in drive gear?

i have taken to my lexus dealer and talked to them about the vibration of my car. They have tested is350 rwd and is250 awd whether they have the same problem. The answer is NO. And finally they tested a demo 350 awd. I have also tested the demo too. The conclusion is that only 350 awd has this vibration problem and dealer said they cannot make it vibrates lesser...

I hope I can grab more 350 awd driver here to discuss about it..

 

Is the car lowered? AWD 250 and AWD GS also has issues with vibration at idle when lowered.

 

no i haven't lowered it and my car is stock. Just want to share with some new is350 awd owners to see if they have the same issue

 

its a common issue with the awd cars whether stock or lowered

 

I noticed yesterday while sitting in my driveway (can't drive it yet ) that it was vibrating while in gear forward or reverse, a little more than I expected from a Lexus.

... I mean my bronco vibrates less LOL

 

Yes my car vibrates. I noticed it quite a bit more after the Fsport springs. I made mention of it in a different thread and I thought it was only me! Also, do u awd 350 owners feel that maybe the idle is set too high? When im at a light I have to press on the.breaks quite hard for the car to be at a standstill...once I release the breaks to press the gas pedal, it takes off with quite a bit of force....anyone else notice this?

 

the more you lower your car the worse the vibrations become.

 

I haven't noticed a vibration but my car only has 600 miles on it. I'll keep an eye, or rather my hands, out for it.

Though, I came from a 250AWD so maybe I am just "used" to the way the car feels and I think it is normal.

 

I noticed that when cold it's about 1400 rpms...WAY high, but I figured that was due to the car trying to warm itself up faster for the driver.

Then when warm, it was about 1100, which still seemed high for me. My other cars are all around 900 ish..

 

IIRC the car will have a higher RPM to warm itself up faster when it is cold. After the car warms up, it seems to idle around 600ish RPM at a stand still (ie: stop light).

 

oh yeah, I should say that this is in park that I was talking about.

 

thats the thing i experience everyday. when the car is still cold and in d gear, sometimes it will go near 1000rpm itself suddenly(kind of like a litle acceleration), so i need to brake harder to prevent rolling..