1998 Mercury Villager Owner Guide 1st Printing - Page 219

Driving Brakes When the foot (service) brake pedal is depressed, the high-mount brake lamp should illuminate. Occasional brake noise is normal and often does not indicate a performance concern with the vehicle's brake system. In normal operation, automotive brake systems may emit occasional or intermittent squeal or groan noises when the brakes are applied. Such noises are usually heard during the first few brake applications in the morning; however they may be heard at any time while braking and can be aggravated by environmental conditions such as cold, heat, moisture, road dust, salt or mud. If a ''metal-to-metal'', ''continuous grinding'' or ''continuous squeal'' sound is present while braking, the brake linings may be worn-out and should be inspected by a qualified service technician. Front Disc Brakes The front disc brakes are self-adjusting. They do not require service other than periodic lubrication of the caliper slide rails and inspection for pad wear. Rear Drum Brakes The rear drum brakes are self-adjusting. Automatic adjustment occurs through normal use of the brakes. Four-Wheel Anti-lock Brakes (If Equipped) The Anti-lock Brake System (ABS) prevents wheels from completely locking up by automatically releasing and re-applying the brakes. During ABS braking, slight brake pedal pulsations may be felt on the driver's foot. These pulsations represent the rapid cycling of the ABS valves. The pedal pulsations are considered normal ABS operation, and will stop when normal braking is resumed or when the vehicle comes to a stop. 215