Brake line leaking in 1991 previa

Watch the video. Third Brake Light Bulb Change Toyota Previa 1991 1997 1993 Toyota Previa...

Go to Toyota Nation, Previa Forum.
or
search for Samay in Seattle, he's the expert

That previa has a central engine, so all engine work requires you take out driver and or front passenger seat out.

The EGR placement is here >> http://www.autozone.com/autozone/repairguides/Toyota-Previa-1991-1997-Repair-Information/EMISSION-CONTROLS/Exhaust-Gas-Recirculation-System/_/P-0900c1528008a1d5

near the bottom of the page.
Good luck

probably the main one. did you try the map sensor. my dad had one that he spent alot of money on and come to find out it was a $26 map sensor that plugs in on top of the motor.

In the right back of engine compartment--just in front of the driver.

pop fuse cover, remove vent housing, remove speedo upper cover, remove 4 bolts holding speedo remove speedo, change bulb

open master cyl cap
remove tires
remove 2 bolts holding caliper
push piston in (GET THE C CLAMP)
change pads

sounds like you got air in your brake line you need to get them bled also have you checked you master cyliner to make sure it is filled up sometimes that may be all your problem is does the peddle slowly bottom out when braking ..An indication of air in your lines if it bottoms out quick then you better get it in and get you brakes checked

There are a few other things that could be wrong with it. Such as ball jionts, wheel bearings, and tie rod ends. although it is rare, it is not unheard of for bad struts to cause them to go bad. when you put them on go and have the van alligned. when they allign it they will tell you if any of the other parts are wore out or not.

Most likely a vacuum leak, but please read thru my tips at the link below.
Do It Yourself Diagnosis and Repair