Jeep Grand Cherokee WK. Manual — part 95
STANDARD PROCEDURE
MANUAL BLEEDING
Use Mopar brake fluid, or an equivalent quality fluid meeting SAE J1703-F and DOT 3 standards only. Use fresh,
clean fluid from a sealed container at all times.
Do not pump the brake pedal at any time while bleeding. Air in the system will be compressed into small bubbles
that are distributed throughout the hydraulic system. This will make additional bleeding operations necessary.
Do not allow the master cylinder to run out of fluid during bleed operations. An empty cylinder will allow additional
air to be drawn into the system. Check the cylinder fluid level frequently and add fluid as needed.
Bleed only one brake component at a time in the following sequence:
1. Fill the master cylinder reservoir with brake fluid.
2. If calipers are overhauled, open all caliper bleed screws. Then close each bleed screw as fluid starts to drip from
it. Top off master cylinder reservoir once more before proceeding.
3. Attach one end of bleed hose to bleed screw and insert opposite end in glass container partially filled with brake
fluid. Be sure end of bleed hose is immersed in fluid.
4. Open up bleeder, then have a helper press down
the brake pedal. Once the pedal is down close the
bleeder. Repeat bleeding until fluid stream is clear
and free of bubbles. Then move to the next wheel.
PRESSURE BLEEDING
Use Mopar brake fluid, or an equivalent quality fluid
meeting SAE J1703-F and DOT 3 standards only. Use
fresh, clean fluid from a sealed container at all times.
Do not pump the brake pedal at any time while bleed-
ing. Air in the system will be compressed into small
bubbles that are distributed throughout the hydraulic
system. This will make additional bleeding operations
necessary.
Do not allow the master cylinder to run out of fluid
during bleed operations. An empty cylinder will allow
additional air to be drawn into the system. Check the
cylinder fluid level frequently and add fluid as needed.
Bleed only one brake component at a time in the fol-
lowing sequence:
Follow the manufacturers instructions carefully when using pressure equipment. Do not exceed the tank manufac-
turers pressure recommendations. Generally, a tank pressure of 51-67 kPa (15-20 psi) is sufficient for bleeding.
Fill the bleeder tank with recommended fluid and purge air from the tank lines before bleeding.
Do not pressure bleed without a proper master cylinder adapter. The wrong adapter can lead to leakage, or drawing
air back into the system. Use adapter provided with the equipment or Adapter 6921.
5 - 6
BRAKES - BASE - SERVICE INFORMATION
WK
SPECIFICATIONS
BRAKE COMPONENTS
SPECIFICATIONS
DESCRIPTION
SPECIFICATION
Front Disc Brake Caliper Type
Floating
Front Disc Brake Caliper Piston
48 mm (1.889 in.)
Front Disc Brake Rotor Type
Ventilated
Front Disc Brake Rotor Diameter
328 mm (12.91 in.)
Front Disc Brake Rotor Max. Runout
0.02 mm (0.00079 in.)
Front Disc Brake Rotor Max. Thickness Variation
0.009 mm (0.00035 in.)
Front Disc Brake Rotor Min. Thickness
28.5 mm (1.122 in.)
Rear Disc Brake Caliper Type
Floating
Rear Disc Brake Caliper Piston
48 mm (1.889 in.)
Rear Disc Brake Rotor Type
Solid
Rear Disc Brake Rotor Diameter
320 mm (12.6 in.)
Rear Disc Brake Rotor Max. Runout
0.02 mm (0.00079 in.)
Rear Disc Brake Rotor Max. Thickness Variation
0.009 mm (0.00035 in.)
Rear Disc Brake Rotor Min. Thickness
12.5 mm (0.4921 in.)
Rear Disc Brake Rotor Drum Max. Diameter
206.5 mm (8.13 in.)
Brake Booster Type
Dual Diaphragm
TORQUE CHART
TORQUE SPECIFICATIONS
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Brake Pedal Support Bolt
24
17
—
Brake Pedal Pivot Nut
31
23
—
Brake Pedal Bracket
Adjustable pedals
28
21
250
Brake Pedal Bracket To Dash
28
—
250
Brake Booster Mounting Nuts
39
29
—
Master Cylinder Mounting Nuts
25
18
—
Master Cylinder Primary Brake Line
23
—
200
Master Cylinder Secondary Brake Line
23
—
200
Front Caliper Slide Pins
25
18
221
Front Caliper Anchor Bolts
169
125
—
Front Caliper Brake Hose Banjo Bolt
31
23
275
Front Caliper Bleed Screw
10
—
88
Rear Caliper Slide Pins
25
18
221
Rear Caliper Brake Hose Banjo Bolt
31
23
275
Rear Caliper Bleed Screw
16
—
144
WK
BRAKES - BASE - SERVICE INFORMATION
5 - 7
SPECIAL TOOLS
BASE BRAKES
Handle C-4171
5 - 8
BRAKES - BASE - SERVICE INFORMATION
WK
SENSOR-BRAKE FLUID LEVEL
REMOVAL
1. Remove the wire connector from the fluid level
sensor (2).
2. From the same side of the master cylinder reser-
voir (1) release the sensor locking taps with a small
screw driver.
3. Pull the sensor (1) out of the reservoir (2) from the
connector side of the sensor.
WK
BRAKES - BASE - SERVICE INFORMATION
5 - 9
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