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CAUTION: Never use gasoline, kerosene, alcohol, motor oil, transmission fluid, or any fluid containing min- CAUTION: Use Mopar brake fluid, or an equivalent quality fluid meeting SAE/DOT standards J1703 and DOT CAUTION: Use Mopar multi-mileage or high temperature grease to lubricate caliper slide surfaces, drum DIAGNOSIS AND TESTING - BASE BRAKE SYSTEM The base brake system components consist of front and rear brake pads and calipers. Rear park brake drums and Brake diagnosis involves determining if the concern is related to a mechanical, hydraulic, electrical or vacuum oper- The first diagnosis step is the preliminary check. PRELIMINARY BRAKE CHECK (1) Check the condition of the tires and wheels. Damaged wheels and worn, damaged or under inflated tires can (2) If a complaint was based on noise while braking, check the suspension components. Jounce the front and the (3) Inspect the brake fluid level and condition. Note that the brake reservoir fluid level will decrease in proportion to (a) If the fluid level is abnormally low, look for any evidence of leaks at the calipers, brake lines, master cylinder and (b) If the fluid appears to be contaminated, drain out a sample to examine. The system will have to be flushed if the (4) Check the parking brake operation. Verify free movement and full release of the cables and the lever. Also note (5) Check the brake pedal operation. Verify that pedal does not bind and has adequate free play. If the pedal lacks (6) Check the boosters vacuum check valve and hose. (7) If the components checked appear to be OK, road test the vehicle. ROAD TESTING (1) If the complaint involved a low brake pedal, pump the pedal and note if it comes back up to the normal height. (2) Check the brake pedal response with the transmission in neutral and the engine running. The pedal should (3) During the road test, make normal and firm brake stops in the 25-40 m.p.h. range. Note any faulty brake oper- ZH BRAKES - BASE 5 - 5 |