Question about 1989 Chrysler New Yorker

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Very low brake pedal

Installed new front pads. new banjo fittings and banjo washers. adjusted the rear brakes up. (drum). installed new master cylinder. bench bled. bled system. no visable leaks found. still has low pedal. no abs system on the vehicle.

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  • aactionshop1 Sep 09, 2009

    well the car has no abs system. but when i install line locks on the rear two hoses pedal gets better. installed two line locks on the front, pedal is rock hard. even with the car running. remove the rear locks and the pedal is still good. remove the right front, pedal goes half way down. remove the left front, and pedal goes all the way down. reinstall front line locks and the pedal is back to rock hard koer. and like i said there is no leaks. so is there a possible problem with the calipers. tyring not to spend money at the parts wheel.

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  • Master
  • 1,036 Answers

Hi,
It is very possible there is still air in the system, as ABS systems can be awkward.
This may be a case of taking it in to a garage - just to "change the fluid", as a vacuum type filler may be needed to put things right.

Posted on Sep 09, 2009

  • Richard Perkins
    Richard Perkins Sep 14, 2009

    Hi again,

    This really sounds like there is air trapped in the front caliper pistons. Probably the best way to remove it is with a Vacuum brake tool - this will pull out any air in there - leaving fluid only.



    As I said - Garage with this tool is probably the cheapest option unless you can borrow one.

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I have a 23 t bucket and i cant get a brake pedal.when i bought it had very little brake so i replaced rear shoes and cylinders,front pads and calipers,all new lines and the master cylinder


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Pacifica 2006-2008
Brake Calipers

Print I hope this helps,Good luck


Removal & Installation


NOTE Using a brake pedal holding tool, depress the brake pedal past its first inch of travel and hold it in this position. This will isolate the master cylinder from the hydraulic brake system and will not allow brake fluid to drain out of the reservoir while the brake lines are open.

  1. Before servicing the vehicle, refer to the Precautions section.
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    0996b43f80204c0d.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Brake hose banjo fitting (1), caliper guide pin bolt (2), caliper adapter (3), caliper (4), copper seal washers (5) and banjo bolt (6)


To install:
  1. Completely compress the caliper piston
  2. Install or connect the following:
    NOTE The outboard pads are side oriented, make sure the spring clip is installed so it is positioned downwards when the caliper is installed.


    Inboard pad clip against the piston cavity and press the pad until the clip is seated making sure the pad backing plate is flush against the piston


    Outboard pad making sure the locating pins are positioned against the ramps. Slide the pad onto the caliper and ensure the locating pins are squarely seated into the holes on the caliper and the pad is flush against the caliper fingers.
  3. Make sure the abutment shims are in place on both slide abutments.
  4. Retract the caliper guide pins to clear the caliper adapter bosses.

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Brake Pads Removal & Installation Front for_car_toy_cam_02-04_sst_frt_dsc_asm.gif

To Remove:
  1. Drain brake fluid to ½ full level in reservoir.
  2. Remove the front wheels. toy_car_cam_frontbrakepads.gif

  3. Remove the front brake caliper assembly.
  4. Remove the 2 anti-squeal shims from each of the 2 brake pads.
  5. Remove the wear indicator from each of the 2 brake pads.
To Install:
NOTE: When replacing worn pads, the anti-squeal shims must be replaced together with the pads.
toy_car_cam_frontbrakepads.gif

  1. Using a large C clamp or equivalent press piston into the caliper.
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Rear TMC made rear brake components toy_car_cam_tmcrearbrakes.gif

TMMK made rear brake components toy_car_cam_tmmkrearbrakes.gif

To Remove:
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  5. Remove the rear brake calipers.
  6. Remove the 2 brake pads with the anti-squeal shims.
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To Install:
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  2. Coat both sides of the outer anti-squeal shim with pad grease.
  3. Install anti-squeal shims to each pad.
  4. Install wear indicators on the 2 brake pads.
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    • TMMK made (Kentucky): Torque the caliper slide pin 34 ft-lb (47 Nm)
  7. Fill the master cylinder with new clean brake fluid.
  8. Pump the brake pedal several times to seat the brake pads.
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prev.gif next.gif Brake Rotor Removal & Installation Front To Remove:
  1. Remove the front wheels.
  2. Remove the front brake caliper assembly.
  3. Remove the front brake pads.
  4. Remove the 2 bolts and caliper mounting bracket.
  5. Place match marks on the disc and axle hub.
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To Install:
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  6. Bleed the brake system.
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Rear To Remove:
  1. Remove the rear wheels.
  2. Remove the brake caliper assembly.
  3. Remove the brake pads.
  4. Remove the 2 bolts and the caliper mounting bracket.
  5. Place match marks on the disc and axle hub.
  6. Remove the rear disc.
To Install:
  1. Align the match marks and install the rear disc.
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    • TMMK made (Kentucky): Torque the bracket bolt 34 ft-lb (47 Nm)
  3. Install the rear brake caliper with the slide pins. Torque the slide pins as follows:
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    • TMMK made (Kentucky): Torque the caliper slide pin 32 ft-lb (43 Nm)
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  5. Fill the reservoir with brake fluid.
  6. Bleed the brake system.
  7. Install the rear wheel
prev.gif next.gif

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1 Answer

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