I know that there is something wrong with the vacuum line going to the booster, because it got way harder to push the brake pedal all of the sudden and I have a high idle. Although, I can't seem to find the booster vacuum hose (or the booster). Here is a pic.

 

bump

 

i dont see a brake booster there at all. it would be up against the firewall behind the master cylinder. Maybe Im wrong but from what I can see in the pic it looks as if you have manual brakes. Is that a US jeep?

 

Yea its a US Jeep. Good thing to know that I wasn't just being stupid. It has power brakes, because I lost power assistance all of the sudden when braking. Anyone have any ideas on what kind of braking system I have?

 

It's an ABS braking system. Although i'm not very familiar with them i would guess the ABS pump is dying and not allowing the system to work in power mode.

I'd try to Google Jeep Cherokee ABS brake systems.

 

check your ABS fuses under the hood the cover should say what is what
there are more that one+ a relay check all of them
their are two fuses by the brake peddle inside also

 

Did you figure this out yet?