Symptom "C" - Hard Or Soft Brake Pedal
- If valve assembly problem is suspected, check for:
- Stuck closed isolation valve (hard pedal).
- Leaky dump valve (soft pedal).
- If vehicle electrical problem is suspected, check for:
- Brakelight switch always on while vehicle is driven.
- If basic brake hydraulic problem (soft pedal) is suspected, check for:
- Hydraulic leak in brakeline or hose, fitting, master cylinder, wheel cylinder, or caliper.
- Air in brake system.
- If basic brake mechanical problem (hard pedal) is suspected, check for:
- Brake related problems such as little or no vacuum boost, stuck or inoperative wheel cylinder or caliper, or pinched or crimped brakeline or hose.