Question about 1991 Mercury Grand Marquis

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91 mercury grand marquis brake problem

Trying to replace front disc brakes. however the brake piston will only go in part way. Can't get it in far enough to put new pads on. C clamp will not work. I even checked to see if it should turn but there are no slots to use special tool to do that. Any advise what may be wrong?

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Are you trying to push the brake fluid back into the master cylinder?

Posted on Sep 09, 2008

  • samson-1
    samson-1 Sep 10, 2008

    Instead of pushing the fluid back to the master cylinder, open the bleeder on the back of the caliper and push fluid onto the ground.This should be easier and is also better for the sensors in the braking system.By pushing the fluid back in the line the dash light for brake problems may stay on.

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2 Answers

How do you remove the rear brake caliper on 1996 mercury grand marquis


Removal & Installation
  1. Raise and safely support the vehicle.
  2. Remove the rear wheel and tire assembly.
  3. Remove the brake fitting retaining bolt from the caliper and disconnect the flexible brake hose from the caliper. Plug the hose and the caliper fitting.
  4. Remove the caliper locating pins. Lift the caliper off the rotor and anchor plate using a rotating motion.

WARNING Do NOT pry directly against the plastic piston or damage to the piston will occur.



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Rear disc brake caliper removal


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Rear disc brake caliper installation

To install:
  1. Position the caliper assembly above the rotor with the anti-rattle spring located on the lower adapter support arm. Install the caliper over the rotor with a rotating motion. Make sure the inner pad is properly positioned.
  2. Install the caliper locating pins and start them in the threads by hand. Tighten them to 19-26 ft. lbs. (26-35 Nm).
  3. Install the brake hose on the caliper with a new gasket on each side of the fitting outlet. Insert the retaining bolt and tighten to 30-40 ft. lbs. (40-54 Nm).
  4. Bleed the brake system, install the wheel and tire assembly and lower the vehicle.
  5. Pump the brake pedal prior to moving the vehicle to position the linings.
  6. Road test the vehicle.

May 23, 2010 | 1996 Mercury Grand Marquis

1 Answer

Front brakes grinding new rotors and pads? Are there discs in rear?


Have a mechanic visually check the front brakes and rotors.

As far as the rear, pull the tires and look to see if there are rotors or drums on the rear axle.

Apr 15, 2010 | 1991 Mercury Grand Marquis

1 Answer

Grease has spun out soaking the caliper and brake lining on my mercury grand marquis 1994 with rear disc brakes.how do i repair this


you should replace the pad cause the will have absorbed the fluid, if the seal is good on the caliper they can just be cleaned, and wash the rotors wit brake clean, replace the axle seals and all should be ok

Nov 14, 2009 | 1994 Mercury Grand Marquis

1 Answer

I have a 2000 Mercury Grand Marquis and I'm trying to purchased the rear brake pads, but I don't know which ones to buy for my vehicle. What's the difference between a phenolic piston and steel piston....


What they are referring to is the caliper pistons. The phenolic should be plastic. You need to know what type of pistons your car has because there is a difference in the clips on the linings.

I also would recommend you to inspect the emergency brakes and if you are planning to keep your car the ceramic brakes are expensive but really quiet and no brake dust.

Nov 05, 2009 | 2000 Mercury Grand Marquis

1 Answer

How do I remove the old front disk pads and replace them with new pads on a 1988 Mercury Grand Marquis? Marvin


remove the 2 bolts holding the caliper on.then remove caliper.remove pads.you may have to save clips on old pads.now dont let the caliper hang it may hurt the brake line tie it up.once pads are removed open the brake resivoir (where you put the brake fluid).now use a c-clamp to push in the caliper piston(the round part sticking out).once piston is all the way in put new pads on the caliper.don't force pads over roter.line up caliper with the bracket.put bots though the holes and tighten.do both sides and fill up the fluid put cap on.done.no bleeding required.

Mar 25, 2009 | 1988 Mercury Grand Marquis

4 Answers

Replace rear brake pads on a 2000 grand marquis


rate as fixya if this is what you need. Thanks

  1. Remove the rear disc brake caliper (2K327).
  2. Remove the brake caliper bolts.
  3. Lift the rear disc brake caliper off the rear disc brake caliper anchor plate (2B582).
  1. sya~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not allow grease, oil, brake fluid or other contaminants to contact the brake pads.
    Remove the brake pads by pushing inward and rotating the pad up.
  1. NOTE: Use a block of wood or used pad to protect the piston and boots.
    Retract the caliper piston (2196) into the rear disc brake caliper.
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Mar 15, 2009 | 2000 Mercury Grand Marquis

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