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1998 Ford Other Brake problem on a f800

Tiny
ETHANBOB78
  • MEMBER
  • 1998 FORD
  • 5.9L
  • 6 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 122,000 MILES
This 1998 ford f800 has its brakes jammed up and its "brake motor" light went on and im wondering if the relay is bad or the master cylinder is bad or other. The truck wont move, because the brakes are pushing without letting up.
Saturday, September 20th, 2014 AT 5:54 AM

6 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Is it an air brake system or hydraulic or hydraulic over air? Need to know what system first. If air it may be bad air chambers not releasing or parking brake not releasing. Shold be scanned for codes as well if light on.
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Saturday, September 20th, 2014 AT 6:04 AM
Tiny
ETHANBOB78
  • MEMBER
  • 4 POSTS
Well the brakes started jamming up when the truck was in motion; it needed to be towed and the buzzer was coming on intermittently. I believe it is a hydraulic over air.
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Saturday, September 20th, 2014 AT 6:56 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Due to different systems you need to know what is on it not on what you believe. Like I said in first reply it will have to bescanned however first to see if anything is picked up. A pro will have to do it wherever you get your trucks repaired.
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Saturday, September 20th, 2014 AT 6:59 AM
Tiny
ETHANBOB78
  • MEMBER
  • 4 POSTS
Well I dont exactly have the money to call a pro which makes my situation difficult, because the truck is needed would a picture help you to identify if its hydraulic over air? I know maybe you cant pin point the problem but ideas are good so I know what to look for. Im planning on doing the repair myself and need to know what parts could be likely to replace. If you could list the likely problems that would help
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Saturday, September 20th, 2014 AT 7:21 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If your brake light is on it h as to be scanned to see what is causing the problem. All that shows me is a master cylinder but I am going to assume it's hydraulic air assisted. But without scanning it yoy have no idea what is wrong
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Saturday, September 20th, 2014 AT 7:56 AM
Tiny
ETHANBOB78
  • MEMBER
  • 4 POSTS
Ok thank you didnt mean to be a pain thanks for giving it a whirl
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Saturday, September 20th, 2014 AT 8:14 AM

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