Standard Procedure - Base Brake Bleeding - Chrysler Dodge Caravan 2002 Manual

RS
BRAKES - BASE (Continued)
CONDITION
EXCESSIVE PEDAL
TRAVEL (ONE FRONT
WHEEL LOCKS UP
DURING HARD BRAKING)
PEDAL PULSATES/
SURGES DURING
BRAKING
PEDAL IS SPONGY
PREMATURE REAR
WHEEL LOCKUP
STOP/BRAKE LAMPS
STAY ON
VEHICLE PULLS TO
RIGHT OR LEFT ON
BRAKING
PARKING BRAKE -
EXCESSIVE HANDLE
TRAVEL
STANDARD PROCEDURE - BASE BRAKE
BLEEDING
NOTE: This bleeding procedure is only for the vehi-
cle's base brakes hydraulic system. For bleeding
the antilock brakes hydraulic system, (Refer to 5 -
BRAKES - ABS - STANDARD PROCEDURE)
POSSIBLE CAUSES
1. One of the two hydraulic circuits
to the front brakes is malfunctioning.
1. Rear brake drum out of round or
disc brake rotor has excessive
thickness variation.
1. Air in brake lines.
2. Power brake booster runout
(vacuum assist).
1. Contaminated brake shoe linings.
2. Inoperative proportioning valve
(non-ABS vehicles).
3. Improper power brake booster
assist.
1. Brake lamp switch out of
adjustment.
2. Brake pedal binding.
3. Obstruction in pedal linkage.
4. Power Brake Booster not allowing
pedal to return completely.
1. Frozen brake caliper piston.
2. Contaminated brake shoe lining.
3. Pinched brake lines.
4. Leaking piston seal.
5. Suspension problem.
1. Rear drum brakes or rear disc
brake parking brake shoes out of
adjustment.
1. Inspect system for leaks. Check
master cylinder for internal malfunction.
1. Isolate condition as rear or front.
Reface or replace brake drums or
rotors as necessary.
1. Bleed brakes.
2. Check booster vacuum hose and
engine tune for adequate vacuum
supply. Refer to power brake booster
diagnosis and testing.
1. Inspect and clean, or replace shoes.
Repair source of contamination.
2. Refer to proportioning valve
diagnosis and testing. Replace valve as
necessary.
3. Refer to power brake booster in the
diagnosis and testing section.
1. Replace brake lamp switch.
2. Inspect and replace as necessary.
3. Remove obstruction.
4. Replace power brake booster.
1. Replace frozen piston or caliper.
Bleed brakes.
2. Inspect and clean, or replace shoes.
Repair source of contamination.
3. Replace pinched line.
4. Replace piston seal or brake caliper.
5. Refer to the Suspension group.
1. Adjust rear drum brake shoes, or
rear parking brake shoes on vehicles
with rear disc brakes.
CAUTION: Before removing the master cylinder
cover, thoroughly clean the cover and master cylin-
der fluid reservoir to prevent dirt and other foreign
matter from dropping into the master cylinder fluid
reservoir.
BRAKES - BASE
CORRECTION
5 - 7