For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Were you sent here from the Hydraulic Brake Symptom table? | Go to Step 2 | Go to Diagnostic Starting Point - Hydraulic Brakes
2 | Inspect the hydraulic brake system for proper operation. Refer to Hydraulic Brake System Diagnosis . Did you find and correct a condition? | Go to Step 7 | Go to Step 3
3 | Inspect the disc brake system for proper operation. Refer to Disc Brake System Diagnosis . Did you find and correct a condition? | Go to Step 7 | Go to Step 4
4 | Inspect the drum brake system, if equipped, for proper operation. Refer to Drum Brake System Diagnosis . Did you find and correct a condition? | Go to Step 7 | Go to Step 5
5 |

1. Separate the master cylinder from the vacuum brake booster. Do not disconnect any brake pipes. Refer to Master Cylinder Replacement .
2. Inspect the rear of the master cylinder for a brake fluid leak.
3. Inspect for brake fluid in the vacuum brake booster.

Did you find a brake fluid leak?

Go to Step 6

Go to Diagnostic Starting Point - Hydraulic Brakes

6 | Replace the brake master cylinder and the vacuum brake booster. Refer to Master Cylinder Replacement and Power Vacuum Brake Booster Replacement . Did you complete the replacement? | Go to Step 7 | --
7 |

1. Install or connect components that were removed or disconnected during diagnosis.
2. Road test the vehicle to confirm proper operation. Refer to Brake System Vehicle Road Test .

Is the condition still present?

Go to Step 2

System OK