burning wiring
Thread Starter
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New User
Joined: Apr 2008
Posts: 23
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From: vancouver,wa
burning wiring
THe other day i started my truck (89 7.3) and selled something burning. I poped the hood and found a plug that looks like it goes to the glow plugs had melted. I tried to start it again and she fired like always but the melted plug was very hot and a fuseable link further down was smoking. Has this ever happened to anyone else?
Thread Starter
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New User
Joined: Apr 2008
Posts: 23
Likes: 0
From: vancouver,wa
Yeah it does have two orange and black wires. Both on the same side. The plug is located on the fender by the dipstick. It seems to only get hot when the glowplugs are heating up for the start then they cool down.
Posting Guru
Joined: Jun 2004
Posts: 1,808
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From: Cincinnati Ohio
I believe i had the same problem you had. I have a picture let us know if this is the connection you are referring to? I believe if you bypass that whole connection you will remedy that problem, or you could just do it to the wire that burned up, this is caused by a bad connection within the wiring connector. Also if you like to keep the connector you could go to a local parts store and get a new one.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
86 Engine connector color codes
The two large orange wires are power to the glow plugs.
Red with green stripe is the ignition circuit.
Red with white stripe coolant temp
White with red stripe oil pressure
Red with black stripe is the engine overheat light
Purple is the trigger wire for the glow plug relay
Red with green stripe is the ignition circuit.
Red with white stripe coolant temp
White with red stripe oil pressure
Red with black stripe is the engine overheat light
Purple is the trigger wire for the glow plug relay
