Question about 2002 Isuzu Trooper

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Have break calliper piston that wont push back 02 isuzu

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Replace the brake caliper if it won't push back. Probably rusted at the piston.

Posted on Dec 31, 2010

  • Duane Wong
    Duane Wong Dec 31, 2010

    If it's a rear caliper, there's a special tool for rotating the caliper piston back. This is normal for it not to push back on the rear if so equipped.



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1 Answer

Changing the back brakes on a bmw 745i how do u get the caliper off

after undoing the calliper mounting bolts it may be necessary to push the piston back into the calliper body to get the pads past the rust lip of the disc
you can do this by loosening off the bleed screw
inserting a lever ( screw driver or such object) and pulling the calliper housing against the inside pad
this action will tend to push the pad and the piston back towards the housing and will give enough clearance to get the calliper off the disc
A point here is that if the rust edge is so bad , it is very possible that the disc is worn below permissible limits and needs replacing so have it properly checked
tighten up the bleed screw when the calliper is removed

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How do you replace front pads

remove the callipers from off the disc rotors. remove the loose pad and use a piston mover to push the inner pad and piston fully back into the calliper .replace the pads and slip calliper back over the disc and re-tension mount bolts
make all spring and plates are replaced in the correct positions
when doing this I open the bleed nipple for the calliper I am working on as I push the piston back. It makes it easier and doesn't overfill the reservoir. When the piston is full back tighten the bleed screw
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My break went out on my chevy s10 xtreme 2.2L 4cl. there are no leaks and new break pads. I also changed the master cylinder and still no breaks? can you please tell me why?

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1 Answer

Should piston go all the way back where it is flush with piston outer housing?

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Have a break calliper with piston that wont push back to fit new breaks what can i do apart from buying a new one

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1 Answer

2006 ford focus rear brakes

If the piston is stuck out this is due to a seized calliper however a temp Fix is to turn the piston clockwise to force it back in as rear callipers are self releasing so they need to be turned clockwise they will not go stright back without turning. This is due by broken calliper seals although you will temp fix it, It's best to either replace calliper or buy a calliper fixing kit which includes all the seals that need replacing.
Also You will need to Empty the brake fluid out to make it easier to push the piston in it, Then you will need to bleed the whole brake system once fitted back.

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How do i compress the the calipor piston on the rear breaks, is there a special too?

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Change break pads

for front pads jack and support car remove wheels remove bolts holding calliper [2]remove spring clip pull calliper off remove pads clean housing fit outer pad slowley push calliper piston in using large grips fit inner pad to piston refitcalliper fit bolts refit spring clip can be awkward pump brake pedal until firm check fluid level rear ones are the same but special tool needed to wind calliper pistons back in note make sure brake discs are in good condition first

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Changing the front brake pads.

first off, you need to buy the break pads, break caliper spreader, and you need to know if the bolts have a allen wrench head or a torques head, you can find that out by turning your wheel all the way to the left after you remove the front left tire, take a small hand mirror and look on the back side of the calliper, once you know what it is, you need the socket or wrench that fits it, remove the bolts, then the calliper will pull off by wiggleing it off, then remove the outside pad, take the break calliper spreader and place it the way the break pad sat and screw it pushing the calliper cylinder back as far as possible, then take the calliper spreader off and remove the other pad, install the new pads into the break calliper and replace the calliper back onto the router, (the round disc the calliper was on) line up the holes on the calliper and replace the bolts.......once you have put the calliper back on you must pump the peddle untill they are hard again, about 3-6 times or untill you cant go to the floor anymore. once they are solid again, replace your tire and you should be good to go.....................hope this helps.

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2000 Chevy Can't compress brake cylindar

it may be that the flexi brake hose is perrished on the inside and not letting the fluid back up the system. try pushing the piston back with the bleed screw out, if this works then a collapsed flexi hose is favourite. if this is a rear calliper then they may be the screw in type, does the calliper have a lever on it for the parking brake.

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