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Tail light fuse keeps blowing on my 1990 f350. Replaced all…

Customer Question
Tail light fuse keeps...

Tail light fuse keeps blowing on my 1990 f350

Mechanic's Assistant: Have you checked the bulbs? Have you checked the connection?

Yes replaced all the bulbs with new ones also replace the light switch and everytime I hit a bump the fuse blow

Mechanic's Assistant: Are you fixing your F350 yourself? What have you tried so far?

Replace all the bulbs, replaced the switch< replaced the switch pig tail, removed the trailer light plug

Submitted: 7 months ago.Category: Ford
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Answered in 3 minutes by:
1/5/2018
Ford Mechanic: Mechanic01, ASE Certified Technician replied 7 months ago
Mechanic01
Mechanic01, ASE Certified Technician
Category: Ford
Satisfied Customers: 3,752
Experience: Owner at Baltic investments
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Hello my name is ***** ***** welcome to just answers! I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required. If I don’t answer right away or quickly in conversation I am helping another customer or have stepped out for a moment and will respond as soon as I can. Ok lets get started!

So there is a short to ground somewhere I would suspect the harness is rubbing, this is not going to be easy to find, it will more than likely take a few hours to find this issue, but stay around the wires that look like they could be rubbing on something

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Customer reply replied 7 months ago
Yeah there is that issue this all started after installing the stacks in the bed of my truck
Ford Mechanic: Mechanic01, ASE Certified Technician replied 7 months ago

I would carefully check around that area first something had to have happened

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Customer reply replied 7 months ago
there is no wiring on the passenger side of the bed I checked that before I made the hole in it to put the stacks through
Customer reply replied 7 months ago
I have gone as far as replacing all the bulb sockets as well, soldered an heat shrieked all connections
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