I know there is some sort of valve that starts with a b that directs air flow. If that is what it is the problem then its a relatively inexpensive fix, might even just need to be oiled. I'd look into it but it could be something completely different
I just recently purchased a 2004 quad cab. I have around 400$ to spend on upgrades right now. I was wondering what would be a good thing to get right now. Also im getting rims and tires soon something besides that. Thanks