ok i have a dodge qc sport 2007 with da HEMI when iam at a light somethimes my idle drops to 500-400 rpm and it gives a little vibration while the rpm is there is that bad or do all hemis do that.

 

mine doesn't. you make any modifications recently? programmer, maybe switched the type of fuel you were using? I'd give it a few days if you modded anything. bet it picks back up.

 

no its been doin it since day1 it did it b4 any modifications it only does when i at a light in other words when iam holding the brake

 

mine does that too i wouldent really worry about it

 

Yeah, mine does the same thing at idle after a few seconds. It scares the crap out of me when my gas light is on though..

 

Mine does it also....it vibrates because the idle is to low. If you buy a programmer you should be able to raise the stock idle a few hundred rpm's depending on which handheld you buy/have.

 

They all do it... if it bothers you that much keep the brake pedal down and lightly tap the gas pedal and the RPMs will go back to normal.... Kinda seems that when the transmission downshifts it bring the RPMs down and forgets to let it go...

 

no it dont bother me just wanted to make sure it was nuthin bad

 

that's weird. my 04 never does that. but it's obviously common on the 07. well, at least you know not to worry

 

my '06 doesnt do it, and it was the first model with the gas saving module the lowest mine drops to is 1,500 when operating on 4 cylinders.

Maybe its a new mod to the system.