I have a 2006 Ford Freestyle. I just changed mine. You need to get a "brake caliper tool." Its available at Auto zone. You can buy it for $50 and keep it, or they let you bring it back. It's kind of like a rental, but it's FREE. **On the driver's side rear, you can turn it clock-wise and it goes in. HOWEVER, on the passenger side its tricky. You must turn it counter-clockwise to get the piston to push in. This tool is not made to go counter-clockwise. So you must turn it a bit, and then push it in by turning with your hand or wrench. Kind of hard to explain. But it took me a bit to figure this out. It's a huge pain in the ---! Be patient and research pages like this before you do your job. Good luck.
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You probably have the pistons in the calpierts jammed by corrosion build up from when you pushed the piston back in to fit the new pads. When you put your foot on the brakes this corrosion has jammed the piston in the full out position and as there is no return spring action on calpiers the pads stay jammed in the on position. Only fix is to replace calpiers or have new pistons and seals fitted.
You need a special tool for rear pads. The pistons have to be turned in, there is either slots or holes in the piston for the tool to fit in, then just turn the piston clockwise and push a little at the same time. Just turn them in far enough for the new pads to slide over the rotor.
On the front you go buy a large C-Clamp
& use one old pad against the caliper piston
On the rear you need a tool to turn the parking
brake in while pushing the piston in
On the back you need to open the bleeder valve
to make it easier
You should be flushing your brake fluid on ALL
your vehicles every 2 years
You don't put on new pads without machining or
replacing the rotors & you have to remove ALL
rust from caliper & pad abutments & sliding surfaces
and put anti-seize on contact & sliding points
I checked my clamp --it is a craftsman 4" from
On the back you get the small cube from the auto parts
store & choose the side with the two smallest pins
& file flats on the outside of them to fit the caliper
piston. Don't think they make an exact tool for the LS
Ratchet up parking brake in back when done & push pedal
a couple times after beelding with engine running & a helper
to seat pads
On the back the piston notch goes up or the pads won't
If you mean youre changing the pads on your malibu and it has rear disc breaks you can use a C Clamp to slowly squeeze the piston back in the caliper. I normally keep one of the old pads on the piston and use a quick clamp that has a squeeze handle to push the piston back in. This will give you room to put the new pads on.
hi from uk the rear calipers pistons need to be rotated with piston also pressed inwards there is a tool specially for this you can purchase from auto supermarket ? it is simple to operate and the cheapest tool i recommend is one made by draper tool company other than this try pushing piston whilst rotating clockwise it would also help if you slacken bleed nipple on caliper to ease pushing piston back do not forget to bleed brakes later hope this helps?
hi from uk the rear brake calipers are auto adjust and so to reset the pistons back into calipers you need to rewind clockwise the piston whilst pushing piston back there is a tool for this purpose which does job in minutes however!! you can improvise if you have an old socket and hacksaw ? you can look at piston and see there are two slots on it? if you cut away an old socket so left with prongs to fit these slots then fit t bar and short extension to socket then you can push and turn piston back make sure slots are in line as to able fitting of new pads one has notch on rear face to insert in piston slot this also works for other models with rear calipers ? cheaper than the tool at £40 to £60 inthe uk dependant on makers hope this helps/inspires you ?
you must spread the pads out....do this with a wedge-shaped tool and use lever action to push the caliper pistons back to the fully-retracted positions in the cylinders. The pistons are currently in the position where the last pads had allowed them to extend to. It is good practice to (excercise) the pistons at pad change time by moving the pistons back and forth slowly to remove any oxidation at the cylinder walls, but never allow pistons to fully extend...prevent this by using a piece of wood to act as the thickness of one rotor and 2 pads. You extend the pistons by using the car's brake pedal, then retract them with the wedge.