so we lent my girl friends uncle her (roughly 2003?) trailblazer 250 to take out on the trails with us.
When we got it back, the rear foot brake wasn’t working at all… now this is nbd as the front will lock up all 4.

I did bleed the hell outta the rear brake and still it’s not working. Well I just kinda didn’t worry about it for the past 2 years or so

Now, the front was getting soft,,, and now (about 2 weeks later) the front isn’t working at all.

Any suggestions on where to check first or where to start with this? I’d like to fix the whole system so everything works.