possibly a bad brake switch located on the brake pedal assy
STICKING BRAKE LIGHT SWITCH AT THE TOP OF THE BRAKE BEDAL
The brake light switch located above the brake pedal is broken or out of adjustment.
Check the brake light switch on the brake pedal. Might have to replace it.
Front disc/rear drum
1986
Low brake fluid level or Parking brake not released completely
Bad switch on the emergency brake handle.
Check the fuse, check the bulbs and check the brake light switch.
yes because brake fluid wont wear out as much No, brake fluid will destroy the seals in the power steering system.
Brake light switch is located on the brake pedal arm. Unbolt & bolt in new one. Wiring will unplug & plug back in to new switch.
check your e brake
when my 1986 w-250 turn signal switch went out the brake lights quit working.