Question about 1997 Mercury Sable

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Got the brakes off.. cant compress the brake caliper cylinder what do i need to do?

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1 Answer

Leave one old pad on caliper next to
piston and use a C-Clamp to push
piston in

On the back,you need to screw the parking
brake in as well. Push & turn piston

Your best to open bleeder valves

You need to flush the system every 2 years
anyway

Posted on Mar 12, 2011

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1 Answer

How do you reset caliper piston on the rear of a Pontiac G6 2006 car?


YOU NEED LARGE C - CLAMP TO COMPRESS PISTON IN CALIPER BORE.REMOVE SMALL AMOUNT BRAKE FLUID FROM BRAKE MASTER CYLINDER RESERVOIR FIRST BEFORE YOU COMPRESS PISTON. AFTER REMOVING A LITTLE BRAKE FLUID.AND COMPRESSING CALIPER PISTON IN BORE.PLACE MASTER CYLINDER RESERVOIR COVER BACK ON.WHEN FINISHING REPLACING BRAKES.PUMP BRAKE PEDAL UNTIL BRAKES FEEL SOLID AND FIRM CHECK BRAKE FLUID LEVEL.DONT DRIVE VECHICLE IF BRAKES DONT FEEL FIRM OR SOLID.

Oct 10, 2010 | 2006 Pontiac G6

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I cant get the brake disc to push back in to replace the brake pads. Is there a switch in the Master Resevoir that I have to open and if so how?


No, see procedure below listed at autozone.com. Try opening bleeder. You may have a kink somewhere or hose decomposing internally. Else the piston is locked in place. Was the brake working before replacing pads?

  1. Remove 1 / 2 of the volume of brake fluid from the master cylinder to prevent overflow when the caliper piston is compressed.
  2. Raise and safely support the vehicle.
  3. Remove the wheel and tire assemblies.
  4. Remove the brake caliper without disconnecting the brake line. Support the caliper with a length of wire. Do not let the caliper hang from the brake hose.
    NOTE On some disc brake systems it is not necessary to remove the caliper when installing new brake pads. Remove the lower slide bolt and rotate the caliper upward to remove the pads.
  5. Remove the brake pads and shims. Inspect the brake rotor and machine or replace as necessary. Check the minimum thickness (specification is cast into the rotor) before machining.

To install:
  1. Use a suitable tool to push the caliper piston into its bore.
  2. Apply a thin coat of grease to the rear face of the brake pad and install the shim. Install the brake pads.
  3. Install the calipers. Lubricate the caliper bolts and boots. If equipped with a 4-cylinder engine, tighten the caliper mounting bolts to 24 ft. lbs. (33 Nm). If equipped with a 6-cylinder engine, tighten the caliper mounting bolts to 54 ft. lbs. (74 Nm).
  4. Install the wheel and tire assemblies and lower the vehicle.
  5. Apply the brakes several times to seat the pads before moving the vehicle. Check the fluid in the master cylinder and add as necessary.

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How to compress front brske caliper


YOU NEED TO REMOVE 2/3 BRAKE FLUID FROM MASTER CYLINDER.THEN YOU WILL NEED A LARGE C -CLAMP.OPEN C - CLAMP PLACE C - CLAMP OVER TOP BRAKE CALIPER AND AGAINST THE BACK OF THE OUTBOARD BRAKE PAD. THEN TIGHTEN THE C -CLAMP UNTIL THE CALIPER PISTON IS PUSHED INTO THE CALIPER BORE JUST ENOUGH TO SLIDE CALIPER OFF THE ROTOR.WARNING WHEN FINISHING BRAKE JOB.PLACE COVER BACK ON MASTER CYLINDER.TAKE FOOT PUMP BRAKE PEDAL UNTIL YOU GET SOLID BRAKES.THIS SEATS BRAKE SHOES AGAINST THE ROTOR.THEN RECHECK BRAKE FLUID LEVEL IN MASTER CYLINDER.

Jun 16, 2010 | 2005 Chevrolet Uplander

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I need step by step info to replace my front brakes for a 04 xter


I suggest that you visit the autozone.com website and register the car. It doesn't cost anything and you will have access to an online repair manual for the car. Pretty handy. The steps for replacing the brakes should be available there. Hope this helped and best wishes.

Sep 04, 2009 | 2004 Nissan XTerra

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Changing 4 calipers and there is no oil com out when try to bleed


The master cylinder supplies the pressure to the brake fluid that travels between the maste brake cylinder resevoir and the brake caliper pistons (through the brake lines. If the master cylinder fails there will be insufficient compression of the brake fluid to make the calipers operate as designed. Leaks in the brake lines and/or cylinders is a possibility, and unrelated to functionality of the master cylinder. Also, pistons located in the brake calipers can form a corrosion ring on their inside walls if there is breakdown in the brake fluid or moisture that gets into the lines. Operating the vehicle when there is insufficient brake fluid in the master cylinder resevoir can also lead to air getting into the brake lines, causing bad working brakes. Air compresses more than brake fluid, and the master cylinder isn't designed to compress air in the brake lines. Sounds like a bad case of "lack of maintenance", as opposed to bad advice from the mechanics. That said, there's no excuse for bad installation. But, it's tough to improperly install a brake line since they are nothing more than hollow metal tubes. There should be no rubber connectors installed in the brake lines. When bleeding the brake lines one must remove all of the trapped air before you will see any fluid appear. If the valves in the master cylinder are not properly operating the master cylinder will not allow the brake fluid to get into the brake lines.

Hope this helps.

Jun 13, 2009 | 1999 Volkswagen Passat

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Unable to compress rear brake caliper is this caliper shot?


There is a tool that you can buy or rent at the parts house that you can connect to a hand tool EG: 3/8 rachet to use with a tool to compress the caliper while you turn the rachet. You will see some raised teeth on the calliper piston for the tool to bite on. Since the rear brake is used to lock the parking brake it has to have a self adjust to compensate for the brake pad wear. EG: Old school drum brakes adjust when you back up depressing the brakes and letting off while the vehicle is rolling allows for the adjuster to reset the brake shoe clearance.

Jun 01, 2009 | 2004 Pontiac Bonneville

1 Answer

I am replacing the rear pads and cannot get the caliper to compress using a c-clamp. Is there something special I need to do or know on my montego 05 car to get the caliper to compress? Sincerely Desperate...


One, take your brake fluid reservoir cap off.
Two, use a thin piece of wood to help you compress the piston on the caliper....do it slow. This way, you don't create a lot of pressure to the reservoir and it won't overflow.
Three, these are the steps to removing and replacing the pads for the rear. It does mention a special tool....but you can use a c-clamp for the same purpose:

Rear To Remove:
  1. Check the brake fluid level in the brake master cylinder reservoir.
  2. If required, remove the fluid until the brake master cylinder reservoir is half full. CAUTION
    Care must be taken when servicing rear brake components without disconnecting the parking brake cable from the brake caliper lever.
  3. Remove the disc brake caliper. Support the caliper with mechanic's wire. CAUTION
    When the brake pads are separated from the brake caliper, new brake pads must be installed. The brake pads are one-time use only.
  4. Remove and discard the brake pads and spring clips from the brake caliper anchor plate. NOTE: Do not remove the anchor plate guide pins. The guide pins are press fit to the brake caliper anchor plate. If the guide pins are damaged a new anchor plate must be installed.
  5. Inspect the brake caliper anchor plate assembly.
  6. Check the guide pins and boots for binding or damage.
  7. Install a new brake caliper anchor plate if it is worn or damaged.
To Install:
NOTE: The left caliper piston turns clockwise and the right caliper piston turns counterclockwise.
  1. Using the special tool, turn and compress the brake caliper piston into the cylinder.
  2. Clean the residual adhesive from the brake caliper fingers and pistons using the specified brake parts cleaner. CAUTION
    Do not allow grease, oil, brake fluid or other contaminants to contact the brake pad or caliper mating surface. Do not install contaminated pads.
    NOTE: Install all the new hardware supplied with brake pad kit.
  3. Install the new spring clips and brake pads.
  4. Position the brake caliper and install the 2 bolts. Tighten caliper bolts to 23 ft-lbs (31 Nm).
  5. If necessary, fill the brake master cylinder reservoir with clean brake fluid.
  6. With the engine running, apply pressure on the brake pedal to seat the brake pads.
  7. Test the brakes for normal operation.

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Cant compress piston on rear brake calipers


Use a caliper wind back tool which rotates the piston at the same time as pushing it back. Release the bleed screw to assist the wind back. If you use a brake hose clamp on the brake hose this will reduce the need to bleed the system.

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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).
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  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.
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  1. NOTE: Use a block of wood or used pad to protect the piston and boots.
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1 Answer

New brakes


Still have air inside, because you used gravity feed method.

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