Concern
Driving the vehicle at low speeds intermittently, while parking, may seize to move. Moving it front or rear can cause it to get unstuck. It appears that the brakes are grabbing when they are not applied.
Panic stopping the vehicle may appear to go to one side. Casual stopping may not show any symptoms.
Diagnostics
Lift up vehicle. Check for brake cable to engage and release properly without binding. Inspect brakes for leaks or soot that may appear moist. Even if it looks clean you will need to investigate further. Carefully pull back wheel cylinder dust boots on both sides and look for seepage, rust or fluid where the bore and piston meet.
Cause
Lack of maintenance and poor service interval documentation of brake fluid replacement in a vehicle that gets low use. A poor sealing master cylinder top gasket may accelerate brake fluid (Dot 3 or 4) absorption of moisture. Water in the brake fluid causes rust in wheel cylinders which in turn may bind up wheel cylinder pistons and cause rubber cups to get scored and leak fluid.
Correction
Visual inspection may not initially show leaks, further lifting of dust boots to gain access to properly inspect may show defect. Upon finding rust, replace or service wheel cylinders with new rubber cups. Replace brake fluid, place a dated label on the radiator support with last brake fluid service replacement to aid in proper tracking of maintenance.
Recommendation
Convert (if equipped) single to dual master cylinder.
The defect is images where you may find mustard rust paste colored substance.
Driving the vehicle at low speeds intermittently, while parking, may seize to move. Moving it front or rear can cause it to get unstuck. It appears that the brakes are grabbing when they are not applied.
Panic stopping the vehicle may appear to go to one side. Casual stopping may not show any symptoms.
Diagnostics
Lift up vehicle. Check for brake cable to engage and release properly without binding. Inspect brakes for leaks or soot that may appear moist. Even if it looks clean you will need to investigate further. Carefully pull back wheel cylinder dust boots on both sides and look for seepage, rust or fluid where the bore and piston meet.
Cause
Lack of maintenance and poor service interval documentation of brake fluid replacement in a vehicle that gets low use. A poor sealing master cylinder top gasket may accelerate brake fluid (Dot 3 or 4) absorption of moisture. Water in the brake fluid causes rust in wheel cylinders which in turn may bind up wheel cylinder pistons and cause rubber cups to get scored and leak fluid.
Correction
Visual inspection may not initially show leaks, further lifting of dust boots to gain access to properly inspect may show defect. Upon finding rust, replace or service wheel cylinders with new rubber cups. Replace brake fluid, place a dated label on the radiator support with last brake fluid service replacement to aid in proper tracking of maintenance.
Recommendation
Convert (if equipped) single to dual master cylinder.
The defect is images where you may find mustard rust paste colored substance.