Taurus with low brake pedal

Discussion in 'Domestics' started by Bob H, Jan 6, 2008.

  1. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
    A friend as a 1994 Ford Taurus with a 3.0 engine it has 68,000 miles this car as Anti lock brakes
    The problem he is having is the pedal is very low and the right side brake pad hit metal the caliper piston would turn but would not go in so we replaced both calipers pads and rotors I could not get any fluid to come out of the new calipers so I replaced the brake hoses now I have fluid coming out of the bleeders I open up all four bleeds i'm not getting any air I have all fluid the pedal is still very low I don't see any leaks I even let it gravity bleed some I full the calipers with fluid be for i but the on the car hopping to cut down on air did I do something wrong by doing that? can the master be bad as well and is there away to check the master Also to add he as been driving the car with very low pedal for a few months
     
  2. stu

    stu Hero Member

    Joined:
    Nov 14, 2006
    Messages:
    722
    Likes Received:
    0
    Home Page:
    I hope you put the calipers on the proper side.
    The bleed screws are to the top.

    Rear brake adjustment is critical for pedal height.
     
  3. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
     
  4. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
    Yes both The bleed screws are to the top.
     
  5. Russ

    Russ Jr. Member

    Joined:
    Nov 29, 2007
    Messages:
    32
    Likes Received:
    0
    Gender:
    Male
    That car has a differential switch/ valve, mounted over the left rear torsion arm. Looks like a little aluminum box with brake lines coming and going. You need to depress that switch to get air and oil out of the rear. Do you have rear disk brakes? If it is jacked up ( wheels off the ground, you will get very little brake pressure back at the rear wheels. I always bled them with the engine off with pretty good results.
     
  6. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
    So I guess it's time to try and replace the master and take from there.
     
  7. tercr6

    tercr6 Full Member

    Joined:
    Nov 14, 2006
    Messages:
    96
    Likes Received:
    0
    Someone mentioned rear disk .

    Ford came out with some updated calipers .

    Also as was mentioned the have to be adjusted correctly .

    Don't forget the emergencies are Incorporated in them .
     
  8. al daniels

    al daniels wrench

    Joined:
    Nov 14, 2006
    Messages:
    1,224
    Likes Received:
    0
    Gender:
    Male
    Location:
    enderby british columbia canada
    good point.if the e brake isnt working,ie has excessive travel,chances are the rear calipers have to be turned out .
     
  9. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
    There are adjustments on rear brake/calipers? His brakes were very low be for I replaced the calipers
    I have all fluid coming out of the bleeders.
     
  10. al daniels

    al daniels wrench

    Joined:
    Nov 14, 2006
    Messages:
    1,224
    Likes Received:
    0
    Gender:
    Male
    Location:
    enderby british columbia canada
    yep theres a tool to turn the pistons in so you can install the new pads.then you use the same tool to turn piston out until you get a nice close fit.how much travell on the ebrake handle?this is a good indication of rear brake adjustment on both disc and drum brakes.
     
  11. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
    OK I replaced the master and still no brake pedal
    Anyone know whats going on here?
     
  12. greasemonkey

    greasemonkey Hero Member

    Joined:
    Nov 14, 2006
    Messages:
    777
    Likes Received:
    0
    Gender:
    Male
    Location:
    Southern California
    I know this is not going to sound right to you but do it any way. To adjust rear calipers use a pair of pliers or a cresent wrench to apply the parking brake arm at the caliper. Now with a hammer lightly tap on the caliper then realease the park brake arm. This will move the piston out to adjust the brake. Repeat this step on both side until the park brake arm feels tight and the brake pedal is good. The proper way is to apply the park brake and then apply foot pressure to the brake pedal but it rarely works. The other method works much better. Believe me have done it too many time to count it works. So long as you have all the air out of the system. Good luck!!! Greasemonkey
     
  13. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
    I'm going to try Greasemonkey trick and see if that will do anything what is it with Ford updated calipers?
    The calipers I picked up came from Autozone. The piston is up to the pads if I turn it out any more the calipers will not go on. Both park brake cables move free
    parking brake works very good. I talked to a guy in a repair shop he told me that them cars can't be bleed off the ground is this true? I have done it in the pass with a good out come. I been doing brakes for 20 years on all kinds of cars and light truks for frinds and family I never had this happen or had a hard time I'm starting to feel like a fool I think when this is fixed or if it's fixed I'm sticking with small engin repair. Thanks to everyone that's trying to help me.
     
  14. csaxon

    csaxon Full Member

    Joined:
    Nov 20, 2006
    Messages:
    139
    Likes Received:
    0
    Does this apply to you?

    SUBJECT
    Adjusting older Ford rear calipers that use pistons with two holes or a nut, in the face of the
    piston.
    CONDITION
    These calipers require special procedures during caliper removal and installation to ensure a high,
    hard brake pedal
    . Damage to the caliper piston adjusting mechanism may also happen.
    SOLUTION
    Unlike most rear calipers that employ the hydraulic brake and the mechanical park brake with
    the same piston, these caliper pistons must rotate to work. THEY DO NOT LOCK INTO A
    BUTTON ON THE INBOARD BRAKE PAD.
    To remove calipers from the rotor:
    - take actuator lever off the caliper
    - undo parking brake end retainer cap 1/2 turn only ( Figure 1 )
    - push piston back into the caliper with C-clamp or pry bar ( do not rotate piston )
    To install caliper and brake pads:
    - with piston bottomed in caliper, install caliper and pads over rotor
    - with pry bar, slide caliper out until the inboard pad contacts the rotor
    - observe air gap to outboard pad and remove the caliper ( e.g. 1/4 inch )
    - with Ford tool, socket or needle nose pliers, turn piston out of caliper. Each 360 degree
    turn moves the piston out approximately 1/8 inch ( e.g. rotate almost 2 full turns )

    - install caliper back onto rotor
     
  15. Bob H

    Bob H Newbie

    Joined:
    Jan 6, 2008
    Messages:
    12
    Likes Received:
    0
    Well I did everyting and no luck so now I guess I go to the ABS. :mad:
     

Share This Page