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Old 12-30-2012, 12:43 PM   #2
marsdog
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Join Date: Feb 2012
Fan#: 94801
Location: Atlanta, GA
What I Drive: 2003 red ZX5

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Question Problem with flushing the brake system 03 Focus ZX5

I tried to flush the brake system of my 03 Focus ZX5. It has 80k miles and the mechanics warned me to change the brake fluid several times already.

I did the 'press pedal - open bleed screw - close bleed screw - release pedal' approach with a friend helping me and ran almost 1 qt new fluid through to get clear fluid come out of all four wheels.

Then the problem came -- I almost lost the brake force. I figured it must be some air went into the system during the process so I did the bleeding one more time. I didn't see much bubble (if any) come out during the bleeding. The brake pedal is quite firm with engine off but becomes very soft as soon as I turned the engine. Now I have some brake force but it is still softer than before.

Shall I bleed the system one more time? Does driving some miles help move air down the pipe? Is it possible I broke something else?

BTW: with the two-men approach, I don't have to leave some fluid in the waste fluid bottle, put the other end of bleed tube under the fluid and hold the bottle higher than bleed nipple, do I?
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