When servicing or repairing the front single piston disc brake caliper, disconnect the negative
Battery Cable from the post first. It is important to use a brake pedal holding tool and push the brake pedal a full inch past its first contact with the master cylinder, so the hydraulic brake system is disconnected and fluid does not drain when you separate the
Brake Lines. Raise your vehicle, then undo the nuts and take off the tire from its mount. Take the flexible brake hose off from the caliper by pulling out the banjo bolt, removing the older sealing washers and installing new ones when you reconnect everything. After grabbing the guide pins, loosen the bolts that bind the caliper and remove the brake caliper. Pump the brake pedal to remove the fluid from the caliper, then place it in a vise, protecting it with plastic jaws. Add a soft block of wood in front of the caliper piston to stop it from hitting anything as it comes out. Use low pressure compressed air to push the brake fluid a little at a time, helping the piston exit the bore; after that, take out the piston. Take care to remove the dust boot and throw it away and then remove and discard the piston seal with a soft tool. Release the caliper bleeder screw and clean the piston bore and all drilled passages in the caliper with a suitable cleaner and drying cloth. If your caliper appears cracked, shows leaks or is damaged, fix it if possible or change it out. Clean and dry the assembly spot before applying Mopar. Use DOT 3 brake fluid for when reassembling the brakes. Apply fresh brake fluid to the piston, piston seal area and the caliper bore, then fit the new piston seal into the caliper bore's groove. Fit the updated dust boot firmly onto the piston. Push the piston into the caliper bore using your hand, then use Special Tool 9315 to make sure the dust boot is completely in the caliper counterbore. Put the bleeder screw in the proper threaded hole and tighten it to 15 Nm (125 inch lbs.). Pull the piston all the way back into the bore with hand or C-clamp pressure and a wood block before you install the caliper. Be sure to connect the caliper on the brake adapter in a way that the mounted bosses do not block the guide pins. In line with the guide pins, fit the caliper mounting adapters and thread on the bolts to 60 Nm (44 ft. lbs.) torque. Place a new washer on each side of the banjo bolt, tighten them securely to 50 Nm (37 ft. lbs.) and attach the banjo to the caliper. Set the wheel mounting nuts to 150 Nm (110 ft. lbs.) of tightness, then refit the wheel and tire to the car. Lower the vehicle, take out the brake pedal holding tool, attach the relevant negative cable to the battery and bleed the brake hydraulic system where required. Make sure the brakes work properly during a road test.