94 L8000
Cargo Master
Joined: Dec 2015
Posts: 2,543
Likes: 322
From: Harned, Ky
Brake release valve on the dash.
Brake light switch under the dash by the brake pedal.
Foot valve the pedal is connected to, hardly ever gives problems.
Defective air pressure gauge, not likely.
Air windshield wiper switch, but Ford was phasing them out in the 80's for electric wipers, our 94 has electric.
Chafed air line.
Brake light switch under the dash by the brake pedal.
Foot valve the pedal is connected to, hardly ever gives problems.
Defective air pressure gauge, not likely.
Air windshield wiper switch, but Ford was phasing them out in the 80's for electric wipers, our 94 has electric.
Chafed air line.
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