Hello i have a 1998 kia sportage and when you push the brake it goes to the floor after you pump the pedal it gets hardafter a minute it goes to the floor again and the brake light comes on do i need to replace the brake booster and master cylinder or can just replace one of them. i was always told it is best to replace them both at the same time. or can it be a different problem i bleed the brakes but did not help.
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Re: 1998 kia sportage
If you don't have any brake lines leaking, change the master cylinder, bench bleed the new one then bleed the blakes, starting with the right rear, left rear, right front, then left front. If the booster was gone, you would hear air leaking out of it when you pressed the pedal down.
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could be the switch, usually located under the dash, the brake pedal (when released) should make contact with the switch pushing it in, when you press the pedal it will release it.. it may be sticking or just bad this is where i would start
Hello...get the vehicle back to the shop that worked on it....Sounds to me like one or more of the calipers won't release it's grip when you release the brake pedal or the master cylinder is locked...Think about it...it's like driving with your foot on the brake pedal....or maybe your power brake booster...anyway...Get it back to the shop that worked on it and bring your receipts for all the work done...Let me know what happens...I hope this was helpful...PEACE........
It is likely you have drawn air into the system. Check the clutch reservoir and refill if needed. Use DOT 3 or 4 brake fluid. Bleed the system to restore clutch pedal. Check the clutch slave cylinder for leaks. If leaking, the slave cylinder will need to be replaced and the system bled again. Please let me know if you have questions.
pump up pedal with bleeder locked 6 or 7 times slowly,hold pedal down crack bleeder pedal should sink lock up bleeder before lifting pedal repeat several times should do it also remove bleeder feom caliper to make sure its not blocked
did you check if the master cylinder was leaking cause that is what was my cure for this problem....bleading after and make sure to adjust the back brakes very well now my pedal is all the way to the top.