kingfish

I have a 97 Cherokee and the only air that comes out is on the top vents, no matter where the selector is set. I found a vaccum line broken, it goes to a softball size something that is mounted to the inside of the front bumper. Anyone know what that is and if that maybe causing my problem?

ms_chevis

The ball in the bumper is your vacuum reservoir,it has a check valve in it,when you accelerate your engine vacuum goes to the check valve.

I believe it could affect your air flow.

I know when I purchased my vehicle the previous owner had the ball backwards which made my vehicle gutless/underpowered and a semi could probably take off faster than me.

My air doesn't work so I don't know if it affected mine but seems reasonable to believe so

nukinfuts29

Mine was a rat nest blocking air flow