Brake Warning System Check - GMC chervolet camaro 1999 Service Manual

5-18 Hydraulic Brakes Brakes
Hydraulic Brake Diagnostic System Check (cont'd)
Symptom Causes
Brake Pulsation
..
• Incorrect lining material. Refer to Disc Brakes.
• Contaminated brake lining. Refer to Disc Brakes.
• Brake linings damaged by abuse. Refer to Disc Brakes.
• Scored rotor. Refer to Refinishing Brake Rotors (Front)
or Refinishing Brake Rotors (Rear).
• Improper thickness variation in rotor. Refer to Brake
Rotor Thickness Variation Check.
• Excessive lateral runout in rotor. Refer to Brake Rotor
Lateral Runout Check.
• Loose front suspension parts. Refer to Front
Suspension.
• Out-of-balance wheel assembly. Refer to Tires and
Wheels in Suspension.
• Improperly torqued wheel nuts. Refer to Tires and
Wheels in Suspension.
• Rotor corroded. Refer to Hydraulic Brakes.
Brake Pulls
• Worn out brake lining. Refer to Disc Brakes.
• Uneven brake lining wear. Refer to Disc Brakes.
• Incorrect lining material. Refer to Disc Brakes.
• Contaminated brake lining. Refer to Disc brakes.
• Brake linings damaged by abuse. Refer to Disc Brakes.
• Improper rotor surface finish. Refer to Disc Brakes.
• Scored rotor. Refer to Refinishing Brake Rotors (Front)
or Refinishing Brake Rotors (Rear).
• Restricted brake fluid passage. Refer to Hydraulic
Brakes.
• Incorrect front wheel alignment. Refer to Wheel
Alignment in Suspension.
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• Incorrect tire pressure. Refer to Tires and Wheels in
Suspension.
• Loose front suspension parts. Refer to Front
Suspension.
• Sticking caliper or caliper pistons. Refer to Brake Caliper
Overhaul (Front) or Brake Caliper Overhaul (Rear).
• Caliper to knuckle clearance. Refer to Disc Brakes.
• Rotor corroded. Refer to Hydraulic Brakes.
Brake Warning System Check
Step Action Normal Result(s)
Abnormal Result(s)*
• Turn the ignition switch to the
The brake warning indicator
• Brake Warning Indicator
RUN position.
illuminates for 3-5 seconds and
Inoperative
1
turns off.
• Observe the brake warning • Brake Warning Indicator
indicator Always On
* Refer to the appropriate symptom diagnostic table for the applicae abnormal result.
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