2007 Dodge Nitro Brake Service (ONLINE REPAIR MANUALS)

Pedal Falls Away

• System leak at brake line, fitting, hose or caliper/wheel cylinder.
• Internal leakage in master cylinder caused by worn or damaged piston cups.
• Internal leak in ABS or RWAL system.

Low Pedal

• Worn brake linings.
• Worn drums or rotors.
• Rear brakes out of adjustment.

Spongy Pedal

• Air in hydraulic system.
• Thin brake drums.
• Substandard brake lines and hoses.

Hard Pedal Or High Pedal Effort

• Linings that are water soaked, contaminated or glazed.
• Faulty power booster or check valve.

Pedal Pulsation

• Disc brake rotors have excessive lateral runout or thickness variation.
• Out of round brake ...

The only serviceable power brake booster components are the vacuum hose and the check valve. The power brake booster must be serviced as an assembly. If diagnosis indicates a power brake booster fault condition, the unit must be replaced as an assembly.

Replacement

Caravan & Town & Country

• With engine stopped, pump brake pedal four or five times to deplete power booster vacuum.
• Disconnect both battery cables, then remove battery thermo guard and battery from tray.
• Remove air inlet resonator and hoses as an assembly from throttle body and air cleaner housing.
• Remove coolant fi...

Brake System Bleed

Manual Bleed

• Remove reservoir filler caps and fill reservoir with proper brake fluid.
• If calipers or wheel cylinders were overhauled, open all caliper and wheel cylinder bleed screws.
• Close each bleed screw as fluid starts to drip from them.
• Fill master cylinder reservoir once more before proceeding.
• Attach one end of bleed hose to bleed screw and insert opposite end in glass container partially filled with brake fluid, Fig. . Ensure bleed hose is immersed in fluid.
• Open up bleeder, then have an assistant press down brake pedal.
• Once brake pedal is down, close bleeder....

Caravan & Town & Country

Front

Removal

• Raise and support vehicle.
• Remove front wheel and tire assemblies.
• Remove two caliper-to-knuckle attaching bolts, then remove caliper by sliding away from adapter and lifting off rotor, Fig. . Support caliper firmly to prevent weight of caliper from damaging flexible hose.
• Remove outboard pad by prying pad retaining clip over raised area of caliper, then sliding pad down and off of caliper.
• Pull inboard pad away from caliper piston, until springs release from piston.

Installation

• Inspect piston seal for leaks and for ruptures in piston dust boot. ...

These self contained vacuum hydraulic power braking units are of the vacuum suspended type. They use engine intake manifold vacuum or a vacuum pump along with atmospheric pressure for their power, eliminating the need for a vacuum reservoir. A mechanically operated control valve, with integral vacuum power diaphragms, controls the degree of brake application or release depending on amount of foot pressure applied to...

Caravan & Town & Country

• Raise and support vehicle, then remove wheel and caliper as outlined under . Support caliper at all times to prevent brake hose damage.
• Slide brake rotor off hub.
• Reverse procedure to install. Clean brake rotor with alcohol or other suitable solvent.

Commander

Front

• Raise and support vehicle using suitable lift or jack.
• Remove tire and wheel assembly.
• Remove caliper as outlined in .
• Secure caliper anchor assembly using suitable wire.
• Remove and discard O-ring securing disc brake rotor on hub.
• Remove rotor from hub and bearing.
• Reverse procedure to install, noting the...