Front Brake Caliper Replacement First Design
Removal Procedure
- Inspect the fluid level in the brake master cylinder reservoir.
- If the brake fluid level is midway between the maximum-full point
and the minimum allowable level, no brake fluid needs to be removed from the
reservoir before proceeding.
- If the brake fluid level is higher than midway between the maximum-full
point and the minimum allowable level, remove brake fluid to the midway point
before proceeding.
- Raise the vehicle and suitably support. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Mark the relationship of wheel to the axle flange.
- Remove the tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation
in Tires and Wheels.
- Hand tighten 2 wheel lug nuts to retain the rotor to the hub.
- Lift the electronic brake wear sensor retainer clip.
- Remove the electronic brake wear sensor wire from under the retainer
clip.
- Carefully pulling up on the electronic brake wear sensor wire
and with a small screw driver push the retaining clip inward and remove the
electronic brake wear sensor from the inner brake pad.
- Disconnect the electronic brake wear sensor connector.
- Remove the electronic brake wear sensor form the caliper.
- Install a large C-clamp
over the body of the brake caliper with the C-clamp ends against the rear
of the caliper body and against the outer brake pad.
- Tighten the C-clamp until the caliper piston is compressed into
the caliper bore enough to allow the caliper to slide past the brake rotor.
- Remove the C-clamp from the caliper.
- Remove the brake caliper
inlet fitting bolt to the brake caliper.
- Remove and discard the two copper brake hose gaskets. These gaskets
may be stuck to the brake caliper and/or the brake hose end.
- Plug the opening in the brake caliper and brake hose to prevent
fluid loss and contamination.
Important: When servicing the brake caliper, the first design hardware will be
upgraded to the second design hardware, with new caliper pin bolts.
- Remove the brake caliper
pin bolts.
- Remove the brake caliper.
Installation Procedure
- If reusing the brake caliper pin bolts and retainers, clean the
brake caliper pin bolts and retainers using denatured alcohol, or equivalent.
- Dry the brake caliper pin bolts and retainers, using non-lubricated,
filtered air.
Important: DO NOT apply lubricant to the brake pad hardware.
- If using the first design hardware apply high temperature silicone brake
lubricant to the brake caliper pin bolts and retainers. If using the second
design hardware apply NIGLUBE® grease to the brake caliper pin bolts.
It is not necessary to apply lubricant to the brake pad hardware or the threads
of the pin bolts.
- Install the brake caliper
over the brake pads into the brake caliper bracket.
Important: If installing the second design hardware kit the upper caliper pin bolt,
has a bushing as part of the assembly. The lower caliper pin, is a solid design
pin bolt.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the brake
caliper pin bolts.
Tighten
Tighten the brake caliper pin bolts to 85 N·m (63 lb ft).
Important: Install NEW copper brake hose gaskets.
- Assemble the brake hose bolt and the NEW copper brake hose gaskets to
the brake hose.
- Install the brake caliper inlet fitting bolt to the brake caliper.
Tighten
Tighten the brake caliper inlet fitting bolt to 45 N·m
(33 lb ft).
Important: Care must be taken that the electronic brake pad wear sensor harness
is routed properly, to avoid damaging the harness.
- Install the electronic
brake wear sensor wiring (1) to the caliper.
- Install the electronic brake wear sensor to the caliper.
- Connect the electronic brake wear sensor connector.
- Insert the electronic brake wear sensor into the inn brake pad.
- Lift the electronic brake wear sensor retainer clip and install
the wire under the clip.
- Bleed the brake system. Refer to
Hydraulic Brake System Bleeding
in Hydraulic Brakes.
- With the engine OFF, gradually apply the brake pedal to approximately
2/3 of its travel distance.
- Slowly release the brake pedal.
- Wait 15 seconds, then repeat steps 14-15 until
a firm brake pedal apply is obtained, This will properly seat the brake caliper
pistons and brake pads.
- Remove the 2 wheel lug nuts retaining the rotor to the hub.
- Install the tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation
in Tires and Wheels.
- Lower the vehicle.
Front Brake Caliper Replacement Second design
Removal Procedure
- Inspect the fluid level in the brake master cylinder reservoir.
- If the brake fluid level is midway between the maximum-full point
and the minimum allowable level, no brake fluid needs to be removed from the
reservoir before proceeding.
- If the brake fluid level is higher than midway between the maximum-full
point and the minimum allowable level, remove brake fluid to the midway point
before proceeding.
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in
General Information.
- Mark the relationship of wheel to the axle flange.
- Remove the tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation
in
Tires and Wheels.
- Install and hand tighten 2 wheel lug nuts to retain the rotor
to the hub.
- Lift the electronic brake wear sensor
retainer clip.
- Remove the electronic brake wear sensor wire (1) from under the
retainer clip.
- Carefully pulling up on the electronic brake wear sensor wire
and with a small screw driver push the retaining clip inward and remove the
electronic brake wear sensor from the inner brake pad.
- Disconnect the electronic brake wear sensor connector.
- Remove the electronic brake wear sensor form the caliper.
- Install a large C-clamp over the body
of the brake caliper with the C-clamp ends against the rear of the
caliper body and against the outer brake pad.
- Tighten the C-clamp until the caliper piston is compressed into
the caliper bore enough to allow the caliper to slide past the brake rotor.
- Remove the C-clamp from the caliper.
- Remove the brake hose to caliper bolt
from the brake caliper.
- Remove and discard the two copper brake hose gaskets. These gaskets
may be stuck to the brake caliper and/or the brake hose end.
- Plug the opening in the brake caliper and hose to prevent fluid
loss and contamination.
Important: The upper caliper pin bolt, has a bushing as part of the bolt. The lower
caliper pin bolt, is of a solid design.
- Remove the caliper pin bolts (1). Note
the location of the caliper pin bolts.
- Remove the caliper (2) from the caliper bracket (3).
- Inspect the caliper pin bolt boots in the caliper bracket for
the following conditions:
Installation Procedure
- If reusing the brake caliper pin bolts:
• | Clean the brake caliper pin bolts using denatured alcohol, or
equivalent. |
• | Dry the brake caliper pin bolts, using non-lubricated, filtered
air. |
Important: DO NOT apply lubricant to the brake pad hardware.
- Apply NIGLUBE® grease to the brake caliper pin bolts. It is not
necessary to apply lubricant to the brake pad hardware or the threads of
the caliper pin bolts.
- Install the brake caliper (2)
over the brake pads into the brake caliper bracket (3).
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
Important: The upper caliper pin bolt, has a bushing as part of the bolt. The lower
caliper pin bolt, is of a solid design.
- Install the caliper pin bolts (1).
Tighten
Tighten the brake caliper pin bolts to 85 N·m (63 lb ft).
Important: Install NEW copper brake hose gaskets.
- Assemble the brake hose bolt and the NEW copper brake hose gaskets to
the brake hose.
- Install the brake hose to caliper bolt
to the brake caliper.
Tighten
Tighten the brake hose to caliper bolt to 45 N·m (33 lb ft).
- Install the electronic brake wear sensor wiring (1) to
the caliper.
- Install the electronic brake wear sensor to the caliper.
- Connect the electronic brake wear sensor connector.
- Insert the electronic brake wear sensor into the inn brake pad.
- Lift the electronic brake wear sensor retainer clip and install
the wire under the clip.
- Bleed the brake system. Refer to
Hydraulic Brake System Bleeding
in
Hydraulic Brakes.
- With the engine OFF, gradually apply the brake pedal to approximately
2/3 of its travel distance.
- Slowly release the brake pedal.
- Wait 15 seconds, then repeat steps 13-14 until
a firm brake pedal is obtained. This will properly seat the brake caliper
pistons and brake pads.
- Remove the two wheel lug nuts retaining the brake rotor to the
hub.
- Install the tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation
in
Tires and Wheels.
- Lower the vehicle.