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savacoolr 7/21/2012
1988 Jeep Wagoneer Limited 6Cyl4.0L - Brakes
Shouldnt the pedal at least pump up even if I havnt bled the system?
I could hear an air leak when the brake pedal was pushed and the pedal was low so I replaced the booster and master cyl. Now the pedal goes to the floor and wont even pump up with the moter on or off.
2 Answers
  • HouseCallAuto
    HouseCallAuto 7/21/2012
    Absolutely not, you have to get the air out. I have a feeling your cause was not the master.
  • olds40316mm
    olds40316mm 7/22/2012
    First of all did you bench bleed the master cylinder be for you installed it ? Thats where you put it in a vise .fill the resivore attach the hoses to the line outlets and put the hoses in the resivore held under the fluid and then using a screw driver and pump the piston till all the air is out of the master cylinder before mounting.

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