2002 chevy impala ls

Allen wrenches usually come in a set, try 3/8.

Put in your search engine , Recalls on a 2002 Chevy Impala LS it will bring up quite a few good sites to pick from. They were more recalls then I could put down here.

You open the rear caliper bleeder valve as it is
near impossible to push fluid to the front of car

Then you turn the caliper piston clockwise-to turn
in the parking brake adjuster- as you push the piston
into the caliper bore

Two functions-piston turned in & pushed in

You line up the piston notch to the top-so the
round bump on the inner pad goes down in place

After the caliper & pads are on & before you start the
car & bleed the 4 corners & then push brake for a firm
pedal-----You ratchet up the lever on park brake at back of caliper

They don't make a tool for an LS

I took the cube avail at any parts store & filed the outsides
of two pins to fit the piston notches

The pistons in rear disc calipers must be threaded back in -- trying to push them in with a C-clamp will damage or destroy the calipers. Note the recesses n the piston face -- there are mating tools available at the auto parts store for turning the pistons; they usually fit a 3/8" ratchet.

There is a tool for that, hook up the tool and turn clock wise to push the piston in.

Try to push on the piston with clamps. I use this one on the picture below and work great for me.

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 using 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.

If the calipers have two,or four notches in the piston of the calipers,then the pistons have to be turned in,one side turns left,and the other right,then they will go back,the auto parts store sells a cheap tool for this,that you use a 3/8 drive ratchet with,if this was helpful,please rate,and thank you

I had problems with the calipers. I got an caliper clamp but it still didnt budge. I then rotated the caliper whilst pushing and bit of banging and eventually she went back in. Thanks Linda

Antilock brake systems don't like fluid pushed back through the system.

You should follow good standard practice, by blocking and ensuring the car is stable and safe.

When the wheel is removed, clamp off the flexible brake fluid line. When you push he caliper back to change the pads, do it with the bleed screw open and catch the fluid that comes out. When the caliper is fully depressed, close the bleed screw up. Change the pads, ensure you put anti-squeel on the outter surfaces. Inspect the clips, ensure they are all seated properly.

Check the runout on the rotor, make sure it's not warped. Get them turned or replace them as necessary.

When done, reinstall everything and remove the clamp.

Start the truck, pump the brakes a few times to get fluid back to the front calipers. Inspect the fluid level in the resivoiour to ensure enough fluid is there.

Do some safe test brakes to ensure all is ok.