Fault Finding REF•15
Braking system
Note: Before assuming that a brake problem exists, make sure that the
tyres are in good condition and correctly inflated, that the front wheel
alignment is correct, and that the vehicle is not loaded with weight in an
unequal manner. Apart from checking the condition of all pipe and
hose connections, any faults occurring on the Anti-lock Braking System
(ABS) should be referred to a Rover dealer for diagnosis.
Vehicle pulls to one side under braking
mm Worn, defective, damaged or contaminated front or rear brake pads
on one side (Chapter 1).
mm Seized or partially-seized front or rear brake caliper piston (Chapter 9).
mm A mixture of brake pad lining materials fitted between sides
(Chapter 1).
mm Brake caliper mounting bolts loose (Chapter 9).
mm Worn or damaged steering or suspension components (Chapter 10).
Noise (grinding or high-pitched squeal) when
brakes applied
mm Brake pad friction lining material worn down to metal backing
(Chapter 1).
mm Excessive corrosion of brake disc (may be apparent after the
vehicle has been standing for some time) (Chapter 1).
Excessive brake pedal travel
mm Faulty master cylinder (Chapter 9).
mm Air in hydraulic system (Chapter 9).
Brake pedal feels spongy when depressed
mm Air in hydraulic system (Chapter 9).
mm Deteriorated flexible rubber brake hoses (Chapter 9).
mm Master cylinder mounting nuts loose (Chapter 9).
mm Faulty master cylinder (Chapter 9).
Excessive brake pedal effort required to stop
vehicle
mm Faulty vacuum servo unit (Chapter 9).
mm Disconnected, damaged or insecure brake servo vacuum hose
(Chapter 9).
mm Primary or secondary hydraulic circuit failure (Chapter 9).
mm Seized brake caliper piston(s) (Chapter 9).
mm Brake pads incorrectly fitted (Chapter 9).
mm Incorrect grade of brake pads fitted (Chapter 1).
mm Brake pad linings contaminated (Chapter 1).
Judder felt through brake pedal or steering wheel
when braking
mm Excessive run-out or distortion of front or rear discs (Chapter 9).
mm Brake pad linings worn (Chapter 1).
mm Brake caliper mounting bolts loose (Chapter 9).
mm Wear in suspension or steering components or mountings (Chap-
ter 10).
Brakes binding
mm Seized brake caliper piston(s) (Chapter 9).
mm Faulty handbrake mechanism (Chapter 9).
mm Faulty master cylinder (Chapter 9).
Rear wheels locking under normal braking
mm Rear brake pad linings contaminated (Chapter 1).
mm Faulty brake pressure-reducing valve (Chapter 9).
Suspension and steering systems
Note: Before diagnosing suspension or steering faults, be sure that the
trouble is not due to incorrect tyre pressures, mixtures of tyre types, or
binding brakes.
Vehicle pulls to one side
mm Defective tyre (Chapter 1).
mm Excessive wear in suspension or steering components (Chapter 10).
mm Incorrect front or rear wheel alignment (Chapter 10).
mm Accident damage to steering or suspension components (Chap-
ter 10).
Wheel wobble and vibration
mm Front roadwheels out of balance (vibration felt mainly through the
steering wheel) (Chapter 1).
mm Rear roadwheels out of balance (vibration felt throughout the
vehicle) (Chapter 1).
mm Roadwheels damaged or distorted (Chapter 1).
mm Faulty or damaged tyre (Chapter 1).
mm Worn steering or suspension joints, bushes or components
(Chapter 10).
mm Roadwheel nuts loose (Chapter 1).
Excessive pitching and/or rolling around corners,
or during braking
mm Defective shock absorbers (Chapter 10).
mm Broken or weak coil spring and/or suspension component (Chap-
ter 10).
mm Worn or damaged anti-roll bar or mountings (Chapter 10).
Wandering or general instability
mm Incorrect front or rear wheel alignment (Chapter 10).
mm Worn steering or suspension joints, bushes or components
(Chapter 10).
mm Roadwheels out of balance (Chapter 1).
mm Faulty or damaged tyre (Chapter 1).
mm Roadwheel nuts loose (Chapter 1).
mm Defective shock absorbers (Chapter 10).
Excessively-stiff steering
mm Broken or incorrectly adjusted power steering pump (auxiliary)
drivebelt (Chapters 1 and 10).
mm Power steering pump faulty (Chapter 10).
mm Seized track rod end balljoint or suspension balljoint (Chapter 10).
mm Incorrect front wheel alignment (Chapter 10).
mm Steering rack or column bent or damaged (Chapter 10).
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