Question about 1993 Buick Regal

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We are changing back disk brakes. How do you get the caliper to go back inside for the new brakes to fit?

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I would not do none of thee above ....when you take the old pads off simply put one of the old pads against the piston and using a 5 or 6 inch C clamp tighten the clamp against the old pad and this will press the piston in .....the old pad is so that you can push the piston back in equally and once its fully compressed just put your new pads in place and with a little effort the caliper will fit back in place ....I DO NOT RECOMMEND MESSING WITH AND VALVES because if you dont know what your doing it could cause breaking issues when you are done and back on the road

Posted on Apr 06, 2013

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The piston needs to be turned and pushed at the same time. There are several different tools for this.

This one works the best but is also more expensive.
we are changing back disk brakes.  How do you get - 8cbcc34.jpg

This one is very cheap and may work. Personally not worth it to me.


These will lock into the slots in the piston. Then turn the piston while applying pressure. Because the E-brake is built into the caliper the piston has a mechanism that allows it to ratchet out. Turning the piston while pushing it in will release the ratchet mechanism and allow to piston to be pushed back into the caliper.

I’m happy to assist further over the phone at

Posted on Oct 24, 2010

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There's a small bleeder valve on the backing plate of each wheel. while applying pressure to the caliper with one hand, loosen the valve slowly until the caliper compresses. Then, without releasing the caliper, retighten the valve.

Posted on Oct 24, 2010

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Take the cover off of the brake fluid reservior and use a c clamp to compress the piston. When doing this make sure to go slow as not to damage the seal.

Posted on Oct 24, 2010

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Changing rear brakes on 2009 gold wing. replace outer pad and use screw driver to push pistons back. question, new pads much thicker than old worn out pads how do you open caliper so new pads fit

hi Ed.
It's nearly time to install the new brake pads. But there's one more step to complete before you can do that. You have to manually retract the caliper piston.
If you look at the inside of the caliper you'll see a cylindrical piston coming out -- this part pushes on the inboard side of the brake pad. You'll see that it has adjusted itself to match your worn-out pads, so you'll need to reset the piston to its original position before the caliper, along with your new (and thicker) brake pads, will fit over the rotor.

Before you reset the caliper piston, it's a good idea to remove the cap that covers the brake fluid reservoir. If you don't, you'll be fighting against a significant amount of brake fluid pressure.
Now that the reservoir cap is removed, this is the part where you'll need that C-clamp. Place the end with the screw on it against the piston. You can use a small piece of wood to protect the surface of the piston, if you choose. As you turn the screw, the clamp will increase the pressure on the piston. Keep tightening it until you're able to slip the new pads into the caliper and fit the caliper and the new pads over the brake rotor.
If you find that the piston isn't properly retracting, don't force it. You may have a caliper that's been designed with a piston that slowly turns as it extends. If that's the case, then you'll need a special tool to thread the piston back into the caliper. A brake caliper tool -- a tool specifically designed to retract this type of brake caliper piston -- is available for purchase at most auto parts stores. If you can't find one there, then you can order the tool online -- or if you're really lucky, maybe your neighbor will have one that you can borrow for the afternoon.
Once the brake caliper piston has been fully retracted, you can re-cap the brake fluid reservoir. It's not a good idea to leave the cap off of your brake fluid reservoir for any longer than is absolutely necessary. Debris or even water may find its way into your brake's hydraulic system. Brake fluid is hygroscopic, which means that it absorbs and retains water. Water in the brake lines leads to serious safety concerns and more complex repairs than the relatively simple pad replacement that you're finishing up with right now.
Installing the new brake pads themselves is just a simple matter of slipping the new pads into the slots where you found the old ones. If they don't easily fit in with your hands, you may want to tap them in gently with a hammer or rubber mallet. Then, replace the pins or bolts that held them in place and you're nearly done.
Next, move the caliper back into position on the brake rotor. Make sure it fits snugly, and tighten the bolts that hold the caliper in place. Make sure everything is back in place and then give the brake pedal a few pumps from inside your car just to make sure the pedal feels right to you. It may take several pumps of the pedal to get the brakes to properly seat themselves into their new position.
The rest of the brake repair is easy. Put the wheel back on, tighten the lug nuts, remove the jack stands and lower the car to the ground using your jack. It's just like changing a tire. Remember to fully tighten (and properly torque) the lug nuts once you have the vehicle back on the ground.
Also, don't forget to test drive the car to make sure that your brake work was successful. Fixing brakes is one thing; making sure they work properly is another.

if you need more info go to this link.
there is youtube videos showing you how to do it.

how do you open brake caliper so new pads fit Google Search

Nov 26, 2017 | Cars & Trucks

2 Answers

Iv had a couple of mechanics trying to fix my brakes bt dey can't get it write. de problem is dat it binds de front wheels. changed de calipas, booster, master and yet its not fine

What normally cause the brakes to bind?

1. Pistons in the brake caliper binding so they will not slide back when pressure is released. If you have new calipers that should not be the issue.

2. The brake caliper is not sliding on the slide pins so that when the brakes are released the caliper sticks in position. If the calipers are new and the slide pins are properly lubricated that should not be an issue.

3. The flexible brake lines have deteriorated and are blocked so that when the brakes are released the brake fluid will not flow back up the lines to the master cylinder. You may be able to push brake fluid through the lines and overcome the blockage under full braking pressure but when that pressure is released the blockage in the brake line will not allow the fluid to flow back. When that happens the brakes will remain applied to some extent. If the flexible brake lines are more than 7 -8 years old I would suspect they might be the problem and when they deteriorate they do so from the inside and often near the ends.

4. The brake pads when fitted to the caliper must be fitted in the correct position. There is an inner pad and outer pad. If they have been reversed so that the outer pad is fitted in the inside position and the inner pad in the outside position, when you apply the brakes they will bind. Don't assume the pads have been fitted properly because so called professional mechanics still make this mistake when fitting brake pads. This is the first thing I would check before looking at anything else.
This is a very frustrating problem for you because you expect professionals to find problems and fix your brakes the first time.
I hope this helps and you manage to sort the problem.

Nov 23, 2015 | Cars & Trucks

1 Answer

Replace front brakes on hundayi sonota 2009


Park securely the car on a plain surface engage first gear and pull the emergency brake.
Raise the front of the car with a jack.
Remove the wheel.


Undo the two rods that hold the caliper closed.
Lift the caliper off the disk. You may need to use a tool. Make sure you do not damage the brake hose connected to the caliper.
Pull out the brake pads.
Compress the piston back into the cylinder. There are several way to do that. The piston seal is quite delicate. A safe way to do the job is using a brake piston retractor .
Fit the new pads inside. If you have done it before you can use a file on the pads surface to help adherence with the disk.
Perform operations in reverse order to reassemble.

Brake maintenance is quite delicate. Even if the procedure is not difficult it should be performed by a trained technician.


Dec 15, 2011 | Cars & Trucks

1 Answer

Front end pulling to left

Your RIGHT side brake disk caliper is probably siezed so all braking power is going to the left causing the pull.
Wheel off, disk pads out, pump out the pistons in the caliper JUST A LITTLE. Clean with a copper brush and brake fluid until polished (Careful not to catch the rubber dust seals). Push pistons back in. Re-fit pads and wheel.

Other thoughts on this. Check for a lip on the disk caused by wear as well.

That's the super cheap, pay nothing for parts option. You should consider:
Changing both sets of brake pads
If the disks are worn, changing the disks too (you may be able to grind a lip off if you have the nerve).
If the caliper still sticks, new pistons or piston and caliper

May 27, 2011 | 2001 Pontiac Aztek

1 Answer

How to replace disc brake pads?


Feb 26, 2011 | 2000 Oldsmobile Alero

1 Answer

There is an irritating whining/metal on metal sound coming from the front driver's side wheel. Is it my brakes and if so how hard are they to replace?

hi, to me it sounds like you need to replace the brake pads and the brake disk so here is how you do this job:
1 undo wheel nuts and jack the side up your changing first, put axle stands under to keep car raises whilst you take wheel off, dont leave on jack as this wont support the car properly for a long time, then remove wheel

2remove two bolts holding brake caliper to rotor(this is the part that houses the brake pads you have one bolt at the top and one bolt at the bottom at the back of the caliper.

3, just before you take the 2 bolts out get a long flat bladed screw driver and put this inbetween the back brake pad and the brake disk then lever the screwdriver so you are forcing the rear brake pad back into the caliper, doing this will push the brake piston back which then enables you to fit the new ones after you have removed the old ones. So its the brake pad at the back of the disk you need to get the long screwdriver between this pad and the disk and pull the driver towards you so you are pushing the pad backwards into the caliper, this will push the piston back keep going till it stops.

4. Remove caliper with brake hose attached (tie the caliper up or rest somewhere so its not putting strain on the brake rubber pipe).

5 Slide brake pads off (you may have to gently tap on pads to remove them) and then put new ones on.

if you couldnt force the piston back earlier then your going to need a big g clamp to force it back now to allow you to get the new pads in if you done it earlier skip this part

6, now to remove the disk if you look towards the center of the brake disk you will see one or two cross head screws you need to undo this then the old disk will fall off with a gentle pull.
7 when you fit the new disk you need to clean it off with brake cleaner or wd40 as it has an oil coating to prevent it rusting whilst its on sale in the shops so when you buy the pads and disks make sure you ask them whats best to use to clean the surface of the disk not doing this will mean you wont stop when you press the brakes.

8 refit new disk replace the locating screw.

9 fit the new pads it is a good idea to put a bit of copper grease on the back of the pads to prevent any noise not the side that touches the disk but the back of the pads the metal part that touches the piston
Compress piston in caliper to make room for new pads with a clamp. Install caliper, install tire.

now repeat this on the other side.

you need to replace both sides at the same time so dont just replace the one side due to the fact if that side is low then the chances are the other side is just as low

check brake fluid level after doing this, it would also be worth putting a bit of rag around the brake fluid filler as when you push the pistons back your going to force brake fluid back into the fluid resevoir,

then before you drive anywhere get in the car and push the brake pedal a few times to ensure the pads are pushed against the disk, then you should have no problems using your car.

let me know if your having any problems.

not bad for a free post your lucky we answered as this is usually a technical question that people pay for the answer, but i seen your post and thought i would help.

give me a shout if you have any problems ok

Aug 15, 2010 | 2005 Hyundai Sonata

2 Answers

How do I get the brake caliper hydrolic sleeve to go back in far enough for the caliper to fit back over the new brake pads?

Using the inside pad, remove the clip from the back of the pad. Place the pad back against the caliper in its original position and 524e65b.jpgusing a 7" C-clamp open the clamp to fit over the caliper and brake pad in the center. Then turning the screw end of the clamp slowly push the caliper back. Watch that it's going in evenly. Once the pad touched the caliper you are done. Remove the C Clamp and old pad a install you new pads.

Aug 11, 2010 | 2002 Oldsmobile Intrigue

1 Answer

Can not get rear break piston to compress to allow for new pads

The rear disk brake piston does not compress back into the caliper, it has notces on the caliper piston that a tool fits into and the caliper piston is actually turned or screwed back into the caliper, and a notch in the piston must also be aligned to fit the the small protrusion from the backing plate of the inner brake pad.

The brake tool can be obtained from most auto part stores, and it is usually square with protrusions sticking out from the sides in different patterns to fit various caliper pistons, and it usually attaches to a 3/8" drive extension and ratchet.

Do not compress this type of caliper piston because the caliper can damaged.

Jun 12, 2010 | 2004 Pontiac Grand Am

2 Answers

How do you change the front disk pads

The pads are mounted to the caliper. The caliper is bolted to the spindle bracket. There is brake hardware which should be replaced with the pads.
Look behind the wheel at the backside of the spindle bracket. The spindle bracket is on the verticle shaft with coils on one end and an A shaped bracket on the other. There are usually 2 bolts that may have normal bolt ends or "Allen" bit fittings.

When you buy the brake hardware you can check for the proper socket for the mounting bolt. You unbolt the caliper, use a rope or wire to suspend it under the frame without disconnecting the brake line.

The pads come off with the hardware. You need to compress the caliper pistons to make the new pads fit. Use a C clamp and an old pad to squeeze the pistons back into the caliper. Remove the Master Cylinder cover so fluid can return.

Then use a bonding chemical like "brake quiet" to mount the rear pad to the caliper piston. Mount outside pad to caliper and then slide caliper over the rotor on the spindle bracket. Lube the slides of the new brake hardware and bolt into place.

You should have the rotors checked for thickness and whether they are warpped before you put on the new pads.

May 17, 2010 | Cars & Trucks

1 Answer

Brack change

Assuming that this Model has 4 Wheel Disk Brakes I will lead you the Best that I can. Remove the Tire, From there you will see a Large Disk with a "Caliper" Mounted on the top side that covers Both sides of the Disk. On the Back side of this "Caliper" on the Top and Bottom of it There is going to be a Bolt on the Top and Bottom. Some use Allen Wrenches and Some use Bolts or Nuts, Feel around and figure out which one you have. Remove these and Lift the Caliper Off of the Disk,BE CAREFUL WITH THE BRAKE LINE ATTACHED TO THE CALIPER AND DO NOT REMOVE THE BRAKE LINE! Remove the Brake Pads from the Caliper at this Point. On the Back of the Brake Pads that you just removed there should be Clips, Take these off the Old pads ans Install on the New Pads. Right where the Pads were on the Caliper there is going to be a Round Cylinder with a Large Hole in the Center, This needs to be Depressed back into the Caliper to get this Job done. On the Top of the Caliper there is a Small Bolt that is Round on Top and has a Small Hole in the Center Just like a Persons Head on a Nut. You MUST do the Next Steps Together to make this work CORRECTLY! Get a Wrench that fits the Small nut on top and Loosen it VERY LITTLE While you use a Pair of Channel Locks to Compress the Cylinder Back into the Caliper. You should see Brake Fluid come out of the Head in that little Nut. Once the Cylinder is Compressed Back into the Caliper Tighten the Little Nut Back down. Try not to let Air get Back into the Hole in the Nut that you are Loosening Or We will have a PROBLEM. So, Make sure you do BOTH of them at the Same time (Loosen nut WHILE Compressing Cylinder with Channel Locks). Install the New Brake Pads on the Caliper the Same way that they came off. Wipe everything off and keep it all Clean! Install the Caliper Back on the Disk and Replace the Bolts on Top and Bottom of Caliper. Get in the Car and Pump the Brake Pedal until it gets Firm and go to the Next one! This will work for all if you have 4 Wheel Disk Brakes. If you get two much air in the Lines the Brakes will go to the Floor and you will have to have a Helper Pump the Brakes while you Loosen the Little Nut on top of the Caliper. Message Back with ANY more Questions!

Dec 31, 2008 | 2006 Hyundai Elantra

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