my dodge is making a air leak noise. on 1998 Dodge Ram 1500

I have a air leak coming from the trottle body on my truck. only does it when it is idealing. I have already changed my idal control sensor on the back of the trottle body. still doing the same. could it possiably be the map sensor or does anyone else have any ideas.

by in Andrews, SC on February 29, 2012
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2 answers
ANSWER by , February 29, 2012
Could be throttle body gasket. If you know a garage with a smoke machine,it will make it easier to find and save you some time and money.
ANSWER by , January 16, 2013
This is the Idle Control Motor doing its job. If you take your snorkel off you'll hear the hiss from the rear half of the throttle body. No worries its normal.