Question about 2002 Kia Optima

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2002 KIA Optima LX rear brakes done last year did fronts drums were good. Slowly over 2 months before fronts changed brake pedal is kicking back, now it kicks back at evenslower stops. Thinking its ABS sys pump, before money can I bleed each brake? can I disconnect electricplug from pump to stop the kicking and still have brakes, Know the abs light will come on but just want it drivable. Where can I get a used or new pump and how much?

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Make sure rotors were machined and are not out of spec. bleeding the brakes to start. make sure you do it in the correct bleeding sequence.most are RR, LR, RF, LF. check with manufacturer to be sure for your application. also check the brake linings front and rear for contamination (grease, brake fluid etc.) if this doesnt get you anywhere then unplug the ABS module. yes it is ok to do so and no you will not lose your brakes by doing this. if the problem stops then you need to try to bleed abs module. bleed it the same way you would a wheel. make sure key is off for this. it is a high pressure system and can injure you if your not careful.. once bled if it does not solve problem you will have to replace abs module. you can get new from dealer, remanufactured from parts store or used from salvage yard. before you do any of that bleed the brakes good. having a buddy to help makes this easier. best way is to start with the sequence and pump the brakes about 10 times. hold pedal down and crack bleeder. then just pump 3 times and on the 3 pump hold. crack the bleeder and shut the bleeder before your helper releases the pedal. do this until there is nothing but fluid coming from the bleeder. keep an eye on the master cylinder making sure its full of fluid at ll times or you will have to start over

Posted on Apr 10, 2011

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