Right now my routine is
M-push
W-pull
F-push
M-pull
W-push
F-pull
HIIT on T,R,

The thing is I do say on the push day-a few chest excercises, a few shoulders, a couple quads, and a couple triceps so my workout probly lasts 90 minutes. Is this too long and should i split up my routine more?

kinda, focus on one exercise per body part and cut it down to 45 minutes

Depends on what your trying to accomplish. But i'd say clarify your objective first - if your gonna do push pull split - do that and stick with it, if your gonna do full body (which is basically what your doing mixing in the other exercises) - then do that. And if your working out hard, then you'll probobly want to limit your workout to about an hour or less.

what does push pull mean. I know dumb question, but am new to this whole thing?

What if i did
Day1-push
Day2-legs
day3-pull
day4-hiit
day 5-rest
repeat

It's really up to you - but with clearly identified goals, it makes it much easier to achieve them. There's nothing "wrong" with what you're doing, it's an issue of maximizing your efforts.

Your last set up depends on what you're going to do for pulling and for legs. I would split a day between legs and pulling, so it might look like this-
push
legs
HIIT or off
pull
HIIT or off
rest
repeat