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Brake Service Diagnosis - CJ-3A
Brake illustration shown for reference only - click here to shop for these parts by interactive diagram
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| Service Diagnosis: | Possible Cause |
|---|---|
| Brakes Drag | Brake shoes improperly adjusted |
| Piston cups enlarged | |
| Mineral oil or improper brake fluid in system | |
| Improper pedal adjustment | |
| Clogged master cylinder by-pass port | |
| One Brake Drags | Brake shoe adjustment incorrect |
| Brake hose clogged | |
| Return spring broken | |
| Wheel cylinder piston or cups defective | |
| Loose or damaged wheel bearings | |
| Brake Grabs - Vehicle Pulls to One Side | Grease or brake fluid on lining |
| Dirt between lining and drum | |
| Drum scored or rough | |
| Loose wheel bearings | |
| Axle spring clips loose | |
| Brake backing plate loose | |
| Brake lining | |
| Brake shoe reversed | |
| Tires under-inflated | |
| Glazed or worn lining | |
| Restricted brake line | |
| Excessive Pedal Travel | Normal lining wear |
| Lining worn out | |
| Leak in brake line | |
| Scored brake drums | |
| Incorrect brake lining | |
| Air in hydraulic system | |
| Spongy Brake Pedal | Air in Lines |
| Brake shoe adjustment incorrect | |
| Insufficient brake fluid | |
| Excessive Pedal Pressure | Grease or brake fluid in lining |
| Shoes improperly adjusted | |
| Warped brake shoes | |
| Distorted brake drums | |
| Glazed or worn lining | |
| Restricted brake line | |
| Faulty brake cylinder | |
| Insufficient brake fluid | |
| Squeaky Brakes | Shoes warped or drums distorted |
| Lining loose | |
| Dirt imbedded in lining | |
| Improper adjustment | |
| Oil or grease on lining | |
| Glazed or worn lining | |
| Drum scored | |
* Excerpt from the Service Manual for Universal Jeep Vehicles page 231