You always want to have the highest bleeder done last, air bubbles rise to the top. You can bleed brakes by yourself. Start with having a bottle ( I use an old plastic pop bottle with a hole made thru the cap for the tubing to go thru ) Keep the end of the tube immersed in brake fluid in the bottle, as long as that happens , air cannot get back into the system, open the bleeder and slowly pump the pedal and allow the air and brake fluid to get out of the caliper. If you could watch this, you would see all the bubbles go thru the tube until it clears to just clean brake fluid, good way to change the brake fluid ( which should be done every couple of years or 3 no more than that regardless of mileage. ) You don't need to keep the pedal down, I do this for about 8-9 strokes per bleeder. The only thing that really have to watch is to keep the reservoir full, don't let it empty or you will have to start all over. close the bleeder, move on to the next. If you have had the whole system apart, you may have to go thru all it twice. I work alone most of the time, so I had to figure how to do this by myself. Have done dozens of cars this way and always ended up with a good hard pedal If it didn't get hard , there was something else wrong
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