i was wondering if somebody can help me out but seems that the recirc system for the a/c is not working been on the dealer and they say that nothing is wrong the problem is that the smells and gases from cars and diesel trucks is coming on the inside help me thanks in advance.

 

You will always smell something mine does the same thing even with recirc on. In fact I can't think of a car I owned that didn't.

 

i think it something defective on them it wasnt like that it was after a dealer visit that start with that condition but before the inside was clean smell free .