kennyJR50 Posted June 16, 2007 Share Posted June 16, 2007 (edited) 01 qx4 with 70k, brake pedal feels mushy comparing to new. searched, but couldn't find anything on the forum. any one have step by step instructions for a flush job? it's front disc, rear drum, & abs, if that helps thanks, k Edited June 16, 2007 by kennyJR50 Link to comment Share on other sites More sharing options...
88pathoffroad Posted June 16, 2007 Share Posted June 16, 2007 Get a friend or assistant, then start at the rear passenger side wheel and bleed each one with a vacuum bleeder for the best results. Go from rear to front in order of distance from the brake MC. I just helped my brother do the brakes on his Chevy and it took three bleeds to get the brake pedal to stay firm. Link to comment Share on other sites More sharing options...
natedawg Posted June 17, 2007 Share Posted June 17, 2007 (edited) In the service manual, it states to disconnect the abs actuator , and electric unit connections, or disconnect the negative battery cable.. and then 1. the LSV valve (4wd only) its on top of the axle 2.left rear wheel 3.right rear 4.left front 5.right front Edited June 17, 2007 by natedawg Link to comment Share on other sites More sharing options...
denisb Posted June 17, 2007 Share Posted June 17, 2007 Before you flush make sure to check and see that your slide pins are not seized and are moving freely. I've seen stuck slide pins give a mushy pedal. Link to comment Share on other sites More sharing options...
kennyJR50 Posted June 21, 2007 Author Share Posted June 21, 2007 (edited) Before you flush make sure to check and see that your slide pins are not seized and are moving freely. I've seen stuck slide pins give a mushy pedal. nothing is wrong with the brakes, just feeling a little mushy when comparing to a new ride. the reason i ask, some other cars that have ABS don't require 2nd person to pump the brakes. by turning car/key on and with constant pressure applied on brake pedal, abs actuator pumps the fluid automatically & out come fluid when bleeder valve is cracked open. quick & simple just wondering if this is the case on this vehicle Edited June 21, 2007 by kennyJR50 Link to comment Share on other sites More sharing options...
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