Question about 2003 Chevrolet Malibu

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I am unable to push the brake accuator back to its "back" position in order to reattach the calipers with new brake pads in them

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ALWAYS, open the bleeder valve for each caliper, as you push the caliper piston back into the caliper piston bore.

Attach a small hose to the bleeder valve, and lead the hose into a suitable container for disposal later. (Dispose of properly. Brake fluid can contaminate the ecosystem in which we live. It is poisonous if ingested. Keep away from children and animals)

If you do Not have the bleeder valve open, you will push junk in the old brake fluid, back up into the brake master cylinder reservoir.

When you add fluid, and bleed your brake system, you are putting fresh, clean brake fluid throughout your brake system.

Brake fluid should be changed on a regular basis. Moisture is present in brake fluid, due to moisture, (Water), being present in the air. As air cools down moisture is released. When moisture comes in contact with the metal parts of your brake system it creates corrosion and rust.

The bottom of the brake master cylinder should be wiped clean, before adding fresh brake fluid, with a lint-free cloth. This area collects all the junk, and if not cleaned it will go right back into your brake system.

Use a large C-Clamp if available, or go to your nearest auto parts store for the correct tool. Disc Brake Pad Spreader Tool. This tool is relatively inexpensive. Here is an example of one,

http://www.mytoolstore.com/kd/kdbrak07.html

Posted on Oct 02, 2009

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Are you talking about brake caliper piston? A large C-clamp is typically used to push them back. I use a large woodworking handscrew clamp.

Posted on Oct 02, 2009

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Try to use a large C clamp with one of the old pads on the caliper piston and the other end on the back side of the caliper body, and turn the clamp in to push the piston back. make sure the brake flex line is not pinched or kinked as it will not allow the fluid to flow back to the brake resovoir. The caliper may also be seized if these things dont work, then it will have to be replaced. Take it to a garage, since the brakes will have to be bleed after replacing the calipers, (If you replace one side recommend replacing the other side)

Posted on Oct 02, 2009

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Remving caliper pins on 2000 vw jetta and caliper


For front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also. But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!!
For front brake pads. You should buy the brake pads (with wear sensor). For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow:
1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose!
2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper.
3. Now you must thoroughly clean the brake calipers (free of grease).
4. Remove outer brake pad from brake carrier.
5. Pull inner brake pad out of brake caliper piston.
6. Check up the brake fluid level on the reservor, and emptying if neccessary!
7. Push piston back into brake caliper housing.
8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward).
9. Install outer brake pad into brake carrier.
10. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm.
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12. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

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How do i get the calippers of to get old pads out and new ones in


front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also. But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!!
For front brake pads. You should buy the brake pads (with wear sensor). For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow:
1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose!
2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper.
3. Now you must thoroughly clean the brake calipers (free of grease).
4. Remove outer brake pad from brake carrier.
5. Pull inner brake pad out of brake caliper piston.
6. Check up the brake fluid level on the reservor, and emptying if neccessary!
7. Push piston back into brake caliper housing.
8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward).
9. Install outer brake pad into brake carrier.
10. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm.
11. Install both caps.
12. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

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1 Answer

How can ichange the disc brakes on a renault 19


Hi there, I have a few steps here to help you out:
  • With your hand brake ON, loosen the wheel bolts to hand tight, jack up front wheel, chock back wheels, and put axle stands/blocks in place (just in case) .
  • Remove wheel. Disconnect pad wear wire, it pulls out of the connector.
  • Remove lower caliper bolt (at the back of caliper at the bottom), need a 13mm ring spanner for head of bolt and 17mm to stop it spinning
  • Use a screw driver between the back of the outer pad and the caliper to raise the caliper back away from the back of outer pad. Pivot caliper upwards to rest on top of wheel disc (good idea to tie it up with some wire) .
  • Remove and discard old pads , clean out with wire brush and soft brush , don't breath in to much of the dust its nasty.
  • Fit new pads (remember pad wear sensor on inside pad), make sure that the pads are in contact with the disc , and the top of them sitting flush with the rim of the disc, don't force them into this position they should naturally sit there.
  • Lower caliper down into position, you may need to push back the piston further in order to make room for the new pads , do this with you hands or a small piece of timber. Keep an eye on the brake fluid reservoir , your pushing fluid back in so if its over full it may spill over. Refit lower caliper bolt (Renault say to replace this each time), and tighten. Reconnect pad wear sensor.
  • Pump brake pedal until normal brake pressure returns.
  • Remove axle stand/blocks, refit wheel and bolts, lower jack and tighten up wheel bolts.
Hope this helps...

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1 Answer

How to replace front brake pads


  1. Remove 2/3 of the brake fluid from the master cylinder.
  2. Raise and support the vehicle.
  3. Mark (index) the relationship of the wheel to the hub.
  4. Remove the tire and wheel assembly. Install 2 wheel nuts in order to retain the rotor.
  5. In order to push the piston into the caliper bore and provide clearance between the pads and the rotor, complete the following steps:
5.1. Install a large C-clamp (2) over the top of the caliper housing (1) and against the back of the outboard pad. 5.2. Slowly tighten the C-clamp (2) until the piston pushes into the caliper bore enough to slide the caliper (1) off the rotor. 81007416


  1. Remove the caliper bolts (2).
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  1. Remove the caliper (2) from the rotor and caliper bracket. Suspend the caliper from the strut using a wire hook (1).
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  1. Remove the pads (2, 3) from the caliper bracket (5).
  2. Remove the 2 retainers (1) from the caliper bracket (5).
81007419


  1. Inspect the following parts for cuts, tears, or deterioration. Replace any damaged parts:
    • The bolt boots (1)
    • The piston boot (7)
  1. Inspect the caliper bolts for corrosion or damage. Use new parts, including bushings, when installing the caliper if any corrosion is found. Do not attempt to polish away corrosion.
INSTALLATION PROCEDURE

IMPORTANT: Before installing new brake pads, wipe the outside surface of the caliper boot clean. Use denatured alcohol.

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  1. Bottom the piston into the caliper bore. If installing new brake pads, use a C-clamp (2) in order to clamp the piston at the same time. Use a metal plate or wooden block across the face of the piston. Do not damage the piston or the caliper boot.
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IMPORTANT: Lift the inner-edge caliper boot next to the piston. Press out any trapped air. The boot must lay flat below the level of the piston face.


  1. Install the 2 retainers to the caliper bracket.
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IMPORTANT: The wear sensor is on the inside pad. The sensor is positioned at the leading edge (upward) of the pad during forward wheel rotation.


  1. Install the pads (5) to the caliper bracket (3).
NOTICE: Use care to avoid damaging pin boot when rotating caliper.


  1. Install the caliper (2) to the bracket (3).
NOTICE: Refer to Fastener Notice in Service Precautions.


  1. Install the caliper bolts (1).
    • Tighten the caliper bolts to 31 Nm (23 ft. lbs.) .
  1. Remove the wheel nuts securing the rotor to the hub.
  2. Install the tire and wheel assemblies. Align the index marks on the wheel and the hub.
  3. Lower the vehicle.
  4. Fill the master cylinder to the proper level with clean brake fluid.
  5. Apply approximately 778 N (175 lbs.) of force to the brake pedal 3 times in order to seat the pads.
  6. Burnish the pads and the rotors.

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1 Answer

All new brake shoes on 97 jeep front callibers still sticking


The problem lays with the Caliper itself and/or the brake hose connected to the Caliper.
However if you replaced the pads, did you also replace the Rotors or have them Turned? The old pads wear the rotor. New pads on old rotors that have not been replaced or turned may end with rubbing or stuck brakes.
A simple way to test whether it's one and/or the other:
1. Remove the Caliper from the rotor, remove the pads. Keep for now the caliper attached to the brake hose.
2. Very slowly push on the brake, exposing more of the piston out of the bore. Not all the way. Usually until the rubber dust seal/boot is fully extended.
3. Check the seal/boot for cracks and tears, and if clean or not. Bad seals may prevent the piston from re-seating.
4. Using a c-clamp and pushing straight in: Try repushing the Caliper Piston back into the Caliper Bore (the cup back into the hole). It should go back in realitively easy.
5. If it doesn't go back in easy: Again slowly pump the brake and re-push the pistons back out to full extended seal/boot (but not the piston out of the bore).
6. Detached the brake hose from the caliper.
7. Again using a c-clamp and pushing straight in: Try again to repush the caliper piston back into the bore without the hose attached. If it goes back-in relatively easy - the caliper is okay...it is the brake hose.
8. If the caliper piston does not go back in easily - Replace the caliper.
9. When Installing the new (reman) caliper, remember to bleed the brakes.
TRY EITHER OR #10 OR #11 BELOW:
After the new Caliper is reattached to hose and has been bled:
10. Again push on the brake petal to fully extend the caliper piston fully (rubber seal/boot fully extended) Again do not push the piston out of the bore! Try pushing the piston back into the bore. If it does not re-seat relatively easy: Replace the brake hose.
11. Another method: After replacing the new caliper back on the rotor: Assumng the entire front end (2WD front wheel drive) or entire vehicle (2WD rear wheel drive) or (4WD all the time) is jacked up off the ground
a. Put the lug nuts back on the rotor.
b. Have helper Start the vehicle and place in Drive. Don't step on gas!
c. Have then let off the brake and then engage the brake.
d. When they let off the brake watch to see if the Rotor is turning or not, if rubbing or not. Or if still sticking.
e. With a new caliper, turned or new rotors, and still a problem? It is the brake hose!
12. Replace the brake hose and try again.

Another method but more expensive:
OR Replace the calipers, brake hoses; bleed and test!

If this helped or not; or if you need additional help or have addtional questions let me know on fixya.com!

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2 Answers

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1. Hand Brake ON , loosen wheel bolts to hand tight, jack up front wheel , chock back wheels , put axle stands/blocks in place (just in case) .

2. Remove wheel. Disconnect pad wear wire , it pulls out of the connector.

3. Remove lower caliper bolt (at the back of caliper at the bottom) , need a 13mm ring spanner for head of bolt and 17mm to stop it spinning

4. Use a screw driver between the back of the outer pad and the caliper to prise the caliper back away from the back of outer pad. Pivot caliper upwards to rest on top of wheel disc (good idea to tie it up with some wire) .

5. Remove and discard old pads , clean out with wire brush and soft brush , don't breath in to much of the dust its nasty.

6. Fit new pads (remember pad wear sensor on inside pad), make sure that the pads are in contact with the disc , and the top of them sitting flush with the rim of the disc, don't force them into this position they should naturally sit there.

7. Lower caliper down into position, you may need to push back the piston further in order to make room for the new pads , do this with you hands or a small piece of timber. Keep an eye on the brake fluid resivoir , your pushing fluid back in so if its over full it may spill over. Refit lower caliper bolt (Renault say to replace this each time), and tigthen. Reconect pad wear sensor.

8. Pump brake pedal until normal brake pressure returns.

9. Remove axle stand/blocks , refit wheel and bolts , lower jack and tighten up wheel bolts.

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1 Answer

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YOU WILL NEED A SPECIAL TOOL TO TURN THE PISTON BACK INTO THE CALIPER. TURN IT CLOCKWISE WHILE PUSHING INWARD ON THE PISTON.

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1 Answer

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assume you know that rear caliper pistons have to be wind back ? so if pistons are still proud and unable to fit new pads? disconnect the h/brake links from both calipers and ensure they are not siezed ? try wd40 to manually free em ? so they move to fully off position ? then push back pistons fit new pads then pump brakes to auto adjust ? then you will have to adjust the h/brake cable/s with h/brake off to enable to reconnect to each caliper hope this is of help to you best wishes from uk

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