Ac vibration and aound when starting car and lwtting it just idle?
 

I posted a thread earlier please disregard it. Issue is when i start the car up and have ac button on and xold air the car will make a vibration and loud noise. Turn it off it goes away. Always stops with ac on after intial driving of the car. Any clues to what this may be. I find it odd only happens on cold start and idling at first but then goes away. I would appreciate any help on this

If you mean rattling then try pressing on the clutch pedal when it's a cold start then see if it goes away, if it does then it's normal, the clutch usually makes most of the noise at cold startups other than the engine.

Nope doesnt matter if clutch is engaged or not. It is directly related to the max ac button being turned on at start up and idle. Its almost like a shaking

Here is the TSB on this.

Bot sure thats the issue..

it dips bad w AC on, the tsb helps a lot but doesnt alleviate the issue completely.

also, they literally just dump more gas in the chambers.

The rpms dont dip i have the lasted ecutek update. Basically it sounds like a thump that goes away once you drive and then stop again.