Brake System Diagnosis. Oldsmobile Intrigue 1999

For 1990-2009 cars only

Makes 🢒 Oldsmobile 🢒 1999 🢒 Intrigue 🢒 Brakes 🢒 Antilock Brake System - Delco VI 🢒 Brake System Diagnosis

Symptom

Causes

Excessive Brake Pedal Travel

•	Leaking brake line or connection. Refer to Brake Fluid Leak .

•	Leaking piston. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Leaking master cylinder (internal). Refer to Master Cylinder Overhaul .

•	Air in the brake system. Refer to Hydraulic Brake System Bleeding .

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake assembly attachments loose. Refer to Disc Brakes Brake Pad Inspection .

•	Improper rear brake adjustment. Refer to Park Brake Cable Service/Adjustment .

•	Excessive vehicle loading.

Brake Pedal Travel Gradually Increases

•	Leaking brake line or connection. Refer to Theft Deterrent System Components .

•	Leaking piston. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Leaking master cylinder (internal). Refer to Master Cylinder Overhaul .

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Restricted passage in the vacuum booster. Refer to Vacuum Brake Booster Check Valve Replacement .

•	Damaged vacuum booster. Refer to Power Vacuum Brake Booster Replacement .

•	Restricted brake fluid passage. Inspect brake hose. Refer to Brake Hose Inspection .

•	Improper Rear Brake Adjustment. Refer to Park Brake Cable Service/Adjustment .

Excessive Brake Pedal Effort

•	Leaking vacuum or booster system. Refer to Power Vacuum Brake Booster Replacement .

•	Restricted passage in the vacuum booster. Refer to Vacuum Brake Booster Check Valve Replacement Hydraulic Brakes.

•	Damaged vacuum booster. Refer to Power Vacuum Brake Booster Replacement .

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Glazed brake lining. Refer to Front Disc Brake Pads Replacement

•	Incorrect brake lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Improper rotor surface finish. Refer to Brake Rotor Refinishing

•	Restricted brake fluid passage. Refer to Brake Hose Inspection .

•	Brake pedal linkage interference or binding. Refer to Brake Pedal Replacement Hydraulic Brakes.

•	Operator riding the brake pedal.

•	Low engine vacuum. Check for leaks.

•	Restricted hydraulic line to the booster (HYD booster only). Refer to Vacuum Brake Booster Hose Replacement in Hydraulic Brakes.

•	Excessive vehicle loading.

Excessive Braking Action

•	Damaged vacuum booster. Refer to Power Vacuum Brake Booster Replacement .

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect brake lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Improper rotor surface finish. Refer to Brake Rotor Refinishing

•	Scored rotor. Refer to Brake Rotor Refinishing

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

Brakes Slow To Respond

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Leaking vacuum or booster system. Refer to Power Vacuum Brake Booster Replacement .

•	Restricted passage in the vacuum booster. Refer to Vacuum Brake Booster Hose Replacement

•	Damaged vacuum booster. Refer to Power Vacuum Brake Booster Replacement .

•	Worn out brake linings. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Glazed brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Improper rotor surface finish. Refer to Brake Rotor Refinishing .

•	Restricted brake fluid passage. Refer to Brake Hose Inspection .

•	Brake pedal linkage interference or binding. Refer to Brake Pedal Replacement Hydraulic Brakes.

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Improper rear brake adjustment. Refer to Park Brake Cable Service/Adjustment .

•	Low engine vacuum. Check for leaks.

•	Restricted hydraulic line to the booster (HYD booster only). Refer to Vacuum Brake Booster Hose Replacement Hydraulic Brakes.

Brakes Slow To Release

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Restricted passage in the vacuum booster. Refer to. Power Vacuum Brake Booster Replacement

•	Damaged vacuum booster. Refer to Power Vacuum Brake Booster Replacement .

•	Restricted brake fluid passage. Refer to Brake Hose Inspection .

•	Brake pedal linkage interference or binding. Refer to Brake Fluid Leak .

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Parking brake not releasing. Refer to Park Brake Cable Service/Adjustment .

•	Caliper to knuckle clearance. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

Brakes Drag

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

•	Restricted brake fluid passage. Refer to Brake Hose Inspection .

•	Improperly adjusted stoplamp switch or cruise control vacuum dump. Refer to Stop Lamp Switch Adjustment .

•	Brake pedal linkage interference or binding. Refer to Brake Pedal Replacement Hydraulic Brakes.

•	Improperly adjusted parking brake. Refer to Park Brake Cable Service/Adjustment .

•	Loose front suspension parts. Refer to Suspension Component Inspection .

•	Operator riding the brake pedal.

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Parking brake not releasing. Refer to Park Brake Cable Service/Adjustment .

•	Parking brake cables frozen. Refer to Park Brake Cable Service/Adjustment .

•	Parking brake cables corroded. Refer to Park Brake Cable Service/Adjustment .

Uneven Braking Action (Side to Side)

•	Leaking brake line or connection. Refer to Brake Fluid Leak .

•	Leaking piston. Refer to Front Brake Caliper Overhaul .

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect brake lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Improper rotor surface finish. Refer to Brake Rotor Refinishing

•	Scored rotor. Refer to Brake Rotor Refinishing

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

•	Restricted brake fluid passage. Refer to Brake Hose Inspection .

•	Incorrect front wheel alignment. Refer to Pre-Alignment Road Test with Customer .

•	Incorrect tire pressure. Refer to Tire and Wheel Specifications .

•	Loose front suspension parts. Refer to Suspension Component Inspection .

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Parking brake not releasing. Refer to Park Brake Cable Service/Adjustment .

•	Caliper to knuckle clearance. Refer to Ball Stud and Knuckle Inspection .

Uneven Braking Action (Front to Rear)

•	Leaking brake line or connection. Refer to Brake Fluid Leak .

•	Leaking piston. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Leaking master cylinder (internal). Refer to Master Cylinder Overhaul .

•	Air in the brake system. Refer to Hydraulic Brake System Bleeding .

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Glazed brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect brake lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Improper rotor surface finish. Refer to Brake Rotor Refinishing

•	Scored rotor. Refer to Brake Rotor Refinishing

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

•	Restricted brake fluid passage. Refer to Brake Hose Inspection .

•	Improperly adjusted parking brake. Refer to Park Brake Cable Service/Adjustment .

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Improper rear brake adjustment. Refer to Park Brake Cable Service/Adjustment .

•	Excessive Vehicle Loading.

Scraping Noise From Brakes

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

•	Loose front suspension parts. Refer to Suspension Component Inspection .

Brakes Squeak Without Application

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Glazed brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect brake lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Scored Rotor. Refer to Brake Rotor Refinishing .

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

Brakes Squeak During Application

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Glazed brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect brake lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Improper rotor surface finish. Refer to Brake Rotor Refinishing .

•	Scored rotor. Refer to Brake Rotor Refinishing .

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

Brakes Chatter (Roughness)

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Scored rotor. Refer to Brake Rotor Refinishing

•	Improper thickness variation in rotor. Refer to Brake Rotor Tolerance .

•	Excessive lateral runout in rotor. Refer to Brake Rotor Lateral Runout Check .

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

•	Loose front suspension parts. Refer to Suspension Component Inspection .

•	Out-of-balance wheel assembly. Refer to Pre-Alignment Road Test with Customer .

•	Improperly torqued wheel nuts. Refer to Fastener Tightening Specifications .

•	Poor rotor surface finish. Refer to Brake Rotor Refinishing

Brakes Groan at the End of Stop

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damage by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

Brake Warning Lamp ON

•	Leaking brake line or connection. Refer to Brake Fluid Leak .

•	Leaking piston. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Leaking master cylinder (internal). Refer to Master Cylinder Overhaul .

•	Air in brake system. Refer to Hydraulic Brake System Bleeding .

•	Contaminated or improper brake fluid. Refer to Hydraulic Brake System Flushing .

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Parking brake switch circuit grounded. Refer to Engine Controls.

•	Parking brake not releasing. Refer to Park Brake Cable Service/Adjustment .

•	Low brake fluid. Refer to Master Cylinder Reservoir Filling .

Premature Lining Wear Out

•	Incorrect lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damaged by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Scored rotor. Refer to Brake Rotor Refinishing .

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

•	Improperly adjusted stoplamp switch or cruise control vacuum dump. Refer to Stop Lamp Switch Adjustment .

•	Brake pedal linkage interference or binding. Refer to Brake Pedal Bracket Replacement .

•	Operator riding the brake pedal.

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Parking brake not releasing. Refer to Park Brake Cable Service/Adjustment .

Parking Brake Won't Hold

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake lining damaged by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake assembly attachments loose. Refer to Front Brake Caliper Bracket Replacement or Rear Brake Caliper Bracket Replacement .

•	Improperly adjusted parking brake. Refer to Park Brake Cable Service/Adjustment .

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Improper rear brake adjustment. Refer to Park Brake Cable Service/Adjustment .

•	Excessive vehicle loading.

•	Parking brake cables frozen. Refer to Park Brake Cable Service/Adjustment .

•	Parking brake cables corroded. Refer to Park Brake Cable Service/Adjustment .

Parking Brake Won't Release

•	Improperly adjusted parking brake. Refer to Park Brake Cable Service/Adjustment .

•	Sticking caliper or caliper pistons. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Parking brake cables frozen. Refer to Park Brake Cable Service/Adjustment .

•	Parking brake cables corroded. Refer to Park Brake Cable Service/Adjustment .

Brake Pulsation

•	Worn out brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake linings damaged by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Scored rotor. Refer to Brake Rotor Refinishing

•	Improper thickness variation in rotor. Refer to Brake Rotor Tolerance .

•	Excessive lateral runout in rotor. Refer to Brake Rotor Lateral Runout Check .

•	Out-of-balance wheel assembly. Refer to Pre-Alignment Road Test with Customer .

•	Improperly torqued wheel nuts. Refer to Fastener Tightening Specifications .

•	Poor drum surface finish. Refer to Brake Rotor Refinishing .

Brake Pulls

•	Leaking brake line or connection. Refer to Brake Fluid Leak .

•	Leaking piston. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul .

•	Uneven brake lining wear. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Incorrect lining material. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Contaminated brake lining. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Brake linings damaged by abuse. Refer to Front Disc Brake Pads Replacement or Rear Disc Brake Pads Replacement .

•	Improper rotor surface finish. Refer to Brake Rotor Refinishing

•	Incorrect front wheel alignment. Refer to Pre-Alignment Road Test with Customer .

•	Incorrect tire pressure. Refer to Tire and Wheel Specifications .

•	Loose front suspension parts. Refer to Suspension Component Inspection .

•	Caliper to knuckle clearance. Refer to Ball Stud and Knuckle Inspection .