Q: How to Service and Repair a Brake Caliper on 2006 Dodge Durango?
A: Before starting brake caliper repair, lift and prop up the vehicle, remove the wheel and proceed to take out the tire. Collect a bit of brake fluid from the master cylinder reservoir with a suction gun and, if you need to change the caliper, take out the brake hose banjo bolt first. After that, remove the bolts that hold the caliper mounting pin and detach the caliper from the car. To remove the caliper, first remove the brake fluid, hold one piston with a C-clamp and a block of wood and place another padded piece of wood in front of the other piston. Blow short bursts of low-pressure air into the caliper brake hose port to slide the piston out, keeping the pressure low so you don't break it. After taking out the first piston, use the C-clamp to shut the empty bore and now repeat this process for the second piston. Take off the piston dust boots using a proper pry tool, trying to not harm the piston bore and then uninstall the piston seals. Separate the boot seal seams with enough hard force that the caliper mounting bolt bushings slide out, then remove the boot seals as well as the caliper bleed screw. Rinse the brakes with brake fluid or brake cleaner instead of gasoline or other fluids which may destroy the piston and seal. Review the piston carefully, changing it out if you see damage or wear and be sure the replacement piston is the same type. When bores are minor, a gentle polish with a brake hone will clean them, but you should replace the caliper if the bore is very corroded or the bore increases more than 0.025 mm. Be sure the assembly area is clean and dry, lubricate the pistons, seals and bores with clean brake fluid and put new seals in each side of the caliper bore. Apply a little silicone grease to the lip on the new boot, attach it to the piston and make sure it rests in place. With the piston rails attached, use Handle C-4171 and Installer for the dust boot to insert the piston into the caliper bore and repeat this for the second piston. Spray a layer of Mopar brake grease or Dow Corning 807 on the mounting bolt bushings, boot seals and bores and only after that put the boot seals and mounting bushings in place so that the seal lip engages. Mount the caliper to the caliper adapter, smear the slide pin bolts with silicone grease and tighten them by hand to 15 Nm. After reattaching the brake hose banjo bolt with new copper seal washers, link the brake hose to the caliper and tighten the fitting bolt to 18 Nm, checking the hose doesn't twist or bend. After bleeding the base brake system, put the wheel assemblies back on, pull out the supports, lower the vehicle and check that the brake pedal is firm before you move the vehicle.