every time i go to a high pressure atomated car wash my jeep seems to give a small knock after i stop at the light and when i take off :confused:

High pressure washes have never been detrimental to my stock intake. I will be installing an aftermarket CAI this week, and if the above symptoms are experienced, I will let you know.

short answer is turn off your engine if you're concerned. But its no worse than the freeking rain storms we've been having here in the NYC area and I haven't had any trouble yet (GSM CAI).