brake booster- vacuum leak?
#1
Instructor
Thread Starter
brake booster- vacuum leak?
I still can't get my wipers to go on or for door to open. Headlights do open after awhile but not right away. I'm going to order new wiper switch and try it but door should open with override right? anyway- I got the car with all 4 new brake calipers and I noticed real low pedal.. almost had to push to floor. I bead all four calipers and got no air but did get a hard pedal- BUT.. soon as I started car immediately pedal drops almost to floor? I noticed too engine seems to have little miss too it. could my brake booster be bad? could it be causing vacuum issue?
#2
a bad brake booster causes a hard pedal. What sequence did you use to bleed the brakes? Are you aware the rear calipers have 2 bleed screws?
#3
Instructor
Thread Starter
I was not aware of 2 bleed screws? Hopefully the 'correct' calipers were put on.. I'll look for the other bleeders. So if booster was bad that wouldn't make pedal drop almost to floor? it was hard and near top.. started car and dropped off right away. Thanks
#4
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"Hopefully"? You're scarin' me, here. Each half of the rear calipers (inner and outer) has a bleeder. Inner halves have to be bled first., then the outers
Last edited by Easy Mike; 09-14-2018 at 01:54 PM.
#6
you never answered the questions as to what sequence you used to bleed them?
Right rear inner, right rear outer, left rear inner, left rear outer, right front, left front.
Right rear inner, right rear outer, left rear inner, left rear outer, right front, left front.
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stingraygene (09-14-2018)
#7
Instructor
Thread Starter
I didn't noticed two bleeders per cliper in rear.. I'll have to re-do. I bleed far passenger side rear- driver side rear-passenger front- driver front- But.. I didn't bleed master cylinder but should have- it was replaced when calipers were (before I bought it). and I never realized 2 bleeders per caliper either in back- I will do a re-do on it. proper sequence including master cylinder please?
#8
Team Owner
You have to get all air out of the master cylinder before you connect it to the brake lines.
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stingraygene (09-15-2018)