My idle rev is at 1000 rpm.. what do you think should be the idle rev. I have taken the car to parkplace grapevine twice, as per them its normal for a lexus to make that noise and shake. I dont believe them. I actually talked to a few ppl who said its not at all normal. Even their sales guy said its not normal and he is not sure why the service think its normal.. i have that in writing too..