Wiring problems need so help - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 06-30-2019, 11:04 PM Thread Starter
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Question Wiring problems need so help

Need some help with my E99. I'm having problem with my blinkers. I have replaced the stock and the blinker relay but still no luck getting them to work.

So today I got serious and took the dash apart to trace wires and test them with a meter. So it seams that I have power getting to the stock. I then checked to see if the signal would get out to the front blinker bulbs it tested positive for continuity. I think that there might be a problem with my ground wire because when I check the continuity between the signal wire and ground wire it test positive. I tested the rear lights and there is no continuity between the signal and ground wire, witch I assume is the way it's supposed to be.

So my question is there a point where the wires tend to chafe in the engine bay? I have been driving around with no blinkers for like 8 months and it's driving me crazy not having working blinkers or hazard lights.
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post #2 of 5 Old 06-30-2019, 11:20 PM
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Stupid question but did you check fuses? Also I believe that harness runs under the driver door sill. If you pull up the trim in the door jamb there is a big harness there. I think they run through there.

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post #3 of 5 Old 06-30-2019, 11:29 PM
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Was it working prior to replacement? If so, it might be a defective unit. Quality control from China is non-existent.

If you want to run it as-is move to California. No one down here uses their blinker anyways 🙂

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post #4 of 5 Old 07-01-2019, 10:00 AM Thread Starter
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Yes I checked the fuses under the dash, is a fuse under the hood I should check? It's a Motorcraft relay, it's possible that it's bad, can someone point me in the direction of how to check the relay that'd be great.

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post #5 of 5 Old 09-07-2019, 03:35 PM Thread Starter
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So I finally got this figured out. It was a fuse issue, it appears that a previous owner may have had a power tap off one of the fuses for the blinkers. The tarp spread the prongs of the fuse block out a bit so the fuse wasn't always making proper contact causing the flasher relay to go bad.

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