Well, its impossible to check the rear brake drum shoe for wear because..........they don't have them. Your car has disk brakes, not shoes. You should not work on your car if you have NO idea what your talking about. GOT IT! Take the car to a shop where even a 16 year old can help you!
In The Subaru Legacy(Outback) Service Manual and the Chilton or Haynes Repair Manual for the Legacy & Forester 2000 thru 2006.
push foot down on brake pedal, hold in button on gear shifter and pull down
Get a turkey baster to syphon brake fluid out of master cylinder resevoir Re-fill master cylinder with new brake fluid Bleed brakes Longest line to shortest
Put some brake fluid in the master cylinder.
You are going to have to formulate a real question. Yes, Subaru Outbacks have brake calipers.
Yes. You need a converter to combine the turn signals with the brake lights.
Yes, that is possible. I would also inspect for a collapsed/damaged brake hose or a pinched brake line on the passenger side.
i don't know if it helps, but my '99 legacy outback was making a knocking sound. turned out that the oring on the brake caliper pin had worn out, and the pin was kind of knocking around.
Try your brake lights. There is a sensor under the brake pedal that will go off if you don't have any. This should be an easy fix.
The best way to find out where the leak is coming from is to inspect/observe, if possible. As far as what parts could be the culprit, there's the brake master cylinder, a hydraulic brake hose, or a brake caliper.
The fuel filter is found inside of the fuel tank. It's hard to reach it. On earlier subarus, the fuel filter was found in front of the brake master cylinder.