jeffro Posted March 20, 2012 Report Share Posted March 20, 2012 2002 focus. Se sohc. 100k miles. After about 20 minutes of driving the passanger side front brake caliper quits releasing. We've replaced the caliper, the rubber hose that connects the brake line to thr caliper, rotors and pads. Blead the brakes, and was getting a great flow. So my question is how long do the boosters on these typically last? Would a break flush fix it? Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted March 20, 2012 Report Share Posted March 20, 2012 Booster wouldnt be the problem. Have you checked the master cylinder? Those are going to a diagonal split system. Quote Link to comment Share on other sites More sharing options...
Rocky31186 Posted March 20, 2012 Report Share Posted March 20, 2012 Did you replace the caliper with new or reman? Quote Link to comment Share on other sites More sharing options...
Cordell Posted March 20, 2012 Report Share Posted March 20, 2012 Booster wouldnt be the problem. Have you checked the master cylinder? Those are going to a diagonal split system. I'm not sure if its diagonal but it likely is, check the opposite rear for lock up. I've seen masters cause lock up like that before, basically stopping the fluid from flowing back when the brakes are released. Quote Link to comment Share on other sites More sharing options...
jeffro Posted March 22, 2012 Author Report Share Posted March 22, 2012 Ordered a new master cylinder which will be here tomorrow.is the procedure for bleeding it the same as bleeding any other brakes? Fill it up, pump pump pump open the valve close the valve, repeat? Do this with all four brake lines? Tia. Quote Link to comment Share on other sites More sharing options...
Cordell Posted March 22, 2012 Report Share Posted March 22, 2012 Ordered a new master cylinder which will be here tomorrow.is the procedure for bleeding it the same as bleeding any other brakes? Fill it up, pump pump pump open the valve close the valve, repeat? Do this with all four brake lines? Tia. Google master cylinder bench bleed, then install and proceed with normal bleed. Quote Link to comment Share on other sites More sharing options...
jeffro Posted March 22, 2012 Author Report Share Posted March 22, 2012 Thank you for your kind help, Scott. Quote Link to comment Share on other sites More sharing options...
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