sonikbo0m

I experience a shake in the car here and there. Of course I can only feel it when I'm at a stop. Maybe my idle rpm is too low. What rpm are you guys at when in drive and at parked?
It doesn't matter if A/C is on or not. It's just a surge that goes through the car making it shake for second, then everything back to normal.
Any help is appreciated.

vuiskool

Mine sits at 600-750 I believe.

telmz1

iTrader: (1)

is your car an AWD?

sonikbo0m

yes 07 AWD.
hmmm.. my idle rpm sits a 5-600, do you think that would make the difference?

I8ABMR

yes my 07 does this as well. I took it in and they said all was ok but its obvious that the rpm are sitting to low at times. Its usually when the car is cold in the winter. I mentioned this to the infiniti that used to service my G35 and they adjusted the idle with the ECU. Lexus seems lees willing to try this. I am assuming this is an option for Lexus as well

stvincent

iTrader: (5)

mine is between 550 to 650.. since i have the vibration all the time, can't really tell the difference.

telmz1

iTrader: (1)

same here and i got used to it until i had an 09 ES350 loaner for the last couple days. That car was really smooth and quiet. no vibrations, rattling, squeaking - nothing. There were times when I almost fell asleep at the red light.

However, when I got my GS3 back - I felt like a man again.

retrospexo

from what i've read all the awd owners experience shaking/vibrations at a full stop

sonikbo0m

I8ABMR, did the shaking/vibration go away when the ECU was adjusted?

hey Vincent, when you say you have the vibrations all the time, you mean because of you being dropped on coilovers right? if that's the case, maybe it was there before hand like Retro said and it just intensified because of stiffer spring ratio.

Things are weird with this car like the rattles. Before my rattles came when it was cold weather and car is not warmed up. But only when I'm in neutral or parked. No rattles when I'm driving and only happen sometimes when I'm stopped in Drive. What I'm getting at is maybe it has alot to do with rpm.