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Jeep Master
6,826 Answers
- Posted on Sep 30, 2010
Re: Vibration in rear of vehicle when braks are applied
I believe that the rear discs are warped or the tires are out of round when braking. More likely, the discs.
--- The following are the instructions for replacing the front and rear pads for the front/back rotors.
1999-01 Grand Cherokee
Front
- Drain 2?3 of the brake fluid from the front reservoir. Use the bleeder screw at the front outlet port to drain the fluid. If equipped with anti-lock brakes, relieve the system pressure.
- Raise and safely support the vehicle.
- Remove the wheels.
- Insert a small prybar through the caliper opening and pry the caliper (using the outboard brake pad) to bottom the pistons in the caliper bore.
NOTE: This will back the brake pads off of the rotor surface to facilitate the removal and installation of the caliper assembly.
- Pry the caliper support spring out of the caliper.
- Remove both caliper slide pin bushing caps and slide pins.
- Lift the caliper from the anchor.
- Using a piece of mechanics wire, support the caliper so there is not tension on the brake hose.
- Remove the brake pads from the caliper.
Fig. 2: Installing the inward brake pad on the front caliper pistons - 1999-01 Grand Cherokee
To install:
- Position the brake pads onto the caliper.
- Position the caliper into place on the anchor.
- Coat the caliper slide pins with silicone grease and torque them to 21-30 ft. lbs. (29-41 Nm). Install the slide pin bushing caps.
- Install the caliper support spring in the top of the caliper under the anchor; then, install the other end into the lower caliper hole.
NOTE: Hold the spring in the caliper hole with your thumb while prying the spring end out and under the anchor.
- Fill the master cylinder with fluid and bleed the brake system.
- Before driving the vehicle, pump the brakes several times to seat the pads.
- Install the wheels.
Rear
- Drain 2?3 of the brake fluid from the front reservoir. Use the bleeder screw at the front outlet port to drain the fluid. If equipped with anti-lock brakes, relieve the system pressure.
- Raise and safely support the vehicle.
- Remove the wheels.
- Insert a small prybar through the caliper opening and pry the caliper (using the outboard brake pad) to bottom the piston in the caliper bore.
NOTE: This will back the brake pads off of the rotor surface to facilitate the removal and installation of the caliper assembly.
- Pry the caliper support spring out of the caliper.
- Remove both caliper slide pin bushing caps and slide pins.
- Lift the caliper from the anchor.
- Using a piece of mechanics wire, support the caliper so there is not tension on the brake hose.
- Remove the brake pads from the caliper.
Fig. 3: Installing the inward brake pad on the rear caliper piston - 1999-01 Grand Cherokee
To install:
- Position the brake pads onto the caliper.
- Position the caliper into place on the anchor.
- Coat the caliper slide pins with silicone grease and torque them to 21-30 ft. lbs. (29-41 Nm). Install the slide pin bushing caps.
- Install the caliper support spring in the top of the caliper under the anchor; then, install the other end into the lower caliper hole.
NOTE: Hold the spring in the caliper hole with your thumb while prying the spring end out and under the anchor.
- Fill the master cylinder with fluid and bleed the brake system.
- Before driving the vehicle, pump the brakes several times to seat the pads.
- Install the wheels.
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