1998 Chevrolet Express Van Owner's Manual - Page 269

Brake Wear Your vehicle hasfront disc brakes and rear drum brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads needed. The sound are may come and go or be heard allthe time your vehicle is moving (except when youare pushing on the brake pedal firmly). Some driving conditions or climates may cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with your brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly torque wheel nuts in the proper sequence to GM specifications. Your rear drum brakes don't have wear indicators, but if you ever heara rear brake rubbing noise, have the rear brake linings inspected immediately. Also, the rear brake drums should beremoved and inspected each time the tires are removed for rotation or changing. When you have thefront brake padsreplaced, have the rear brakes inspected, too. Brake linings should always be replaced as complete axle sets. r I The brake wear warning sound means that soon your brakes won't work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced. I NOTICE: Continuing to drive with worn-out brake pads could result in costly brake repair. 7 of See "Brake System Inspection'' in Section this manual under Part "Periodic Maintenance Inspections.'' C Brake Pedal Travel See yourdealer if the brake pedal does not return to normal height, orif there is a rapid increase in pedal travel. This could be a sign of brake trouble.