Town & Country Van AWD V6-230 3.8L VIN L SMFI (1998)
Brake Master Cylinder: Service and Repair
Master Cylinder Replacement
CAUTION: Different types of master cylinders are used on this vehicle. Vehicles equipped with traction control use a center port master cylinder.
Vehicles not equipped with traction control use a compensating port master cylinder. Be sure to verify if the vehicle is equipped with traction control and
that the correct replacement master cylinder is used. Also, vehicles that are equipped with four wheel disc brakes have a master with a different size
piston bore than the other master cylinders. If a new master cylinder is being installed, be sure the correct master cylinder is used for the type of brake
system the vehicle is equipped with.
REMOVE
CAUTION: Vacuum in the power brake booster must be pumped down (removed) before removing master cylinder from power brake booster. This
is necessary to prevent the power brake booster from sucking in any contamination as the master cylinder is removed. This can be done simply by
pumping the brake pedal, with the vehicle's engine not running, until a firm feeling brake pedal is achieved.
1. With engine not running, pump the brake pedal until a firm pedal is achieved (4 - 5 strokes).
CAUTION: Before removing the master cylinder filler tube from the brake fluid reservoir, the filler tube, brake fluid reservoir and master
cylinder must be thoroughly cleaned. This must be done to prevent dirt particles from failing into the brake fluid reservoir and entering the brakes
hydraulic system.
2. Thoroughly clean all surfaces of the filler neck, brake fluid reservoir, and master cylinder. Use only a solvent such as Mopar Brake Parts Cleaner
or an equivalent.
Master Cylinder Filler Tube Removal
3. Remove master cylinder filler tube from brake fluid reservoir by pushing down and rotating. Then remove the cap from the removed filler tube and
install it on the master cylinder reservoir.
Master Cylinder Assembly
4. Remove vehicle wiring harness connector, from the brake fluid level sensor, in master cylinder brake fluid reservoir.
