Preliminary Checks
WARNING:
Use of any other than approved DOT 3 brake fluid will cause permanent damage to brake components and will render the brakes inoperative.
WARNING:
Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with eyes. Wash hands thoroughly after handling. If brake fluid contacts eyes, flush eyes with running water for 15 minutes. Get medical attention if irritation persists. If taken internally, drink water and induce vomiting. Get medical attention immediately.
CAUTION:
Do not spill brake fluid onto painted surfaces. If spilled, wipe up immediately.
NOTE:
Always check the fluid level in the brake master cylinder reservoir (2K478) before performing the test procedures. If the fluid level is not at the correct level, add High Performance DOT 3 Brake Fluid C6AZ-19542-AB or DOT 3 equivalent meeting Ford specification ESA-M6C25-A, DOT 3.
NOTE:
Prior to performing any diagnosis, make certain that the brake warning indicator is functional.
A change in brake pedal feel is usually the first indicator of a brake system concern. The brake warning indicator in the instrument cluster and the brake fluid level in the brake master cylinder reservoir are also indicators of system concerns.
If a wheel (1007) is locked and the vehicle must be moved, open a bleeder screw at the locked wheel to let out enough fluid to relieve the pressure. Close the bleeder screw. This bleeding operation may release the brakes but will not correct the cause of trouble. If this does not relieve the locked wheel condition, repair the locked components before proceeding.
For low or spongy brake pedal concerns:
- Check and, if necessary, refill the brake master cylinder reservoir.
- Bleed the brake system and retest the brake pedal feel.
For slow or incomplete brake pedal return concern:
- Inspect for binding, damage, correct installation or interference at the brake pedal (2455).
- Check the power brake booster for binding, damage and correct installation.
- Verify customer complaint.