Turn signal relay
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5th Wheeling
Joined: Jan 2021
Posts: 37
Likes: 19
From: Dallas
Turn signal relay
Folks,
A weird thing happened last week. I rented a trailer, did my thing and returned it. Afterward the left blinker indicator on the dash went on fast mode so I thought maybe a bulb or the relay failed.. Nope all lights modes (brake, hazard, turn etc.) function normally and at the correct speed. I did a search at Rock Auto for a flasher relay but no joy. Any one have a fix?
VR,
David
A weird thing happened last week. I rented a trailer, did my thing and returned it. Afterward the left blinker indicator on the dash went on fast mode so I thought maybe a bulb or the relay failed.. Nope all lights modes (brake, hazard, turn etc.) function normally and at the correct speed. I did a search at Rock Auto for a flasher relay but no joy. Any one have a fix?
VR,
David
Last edited by Noneya; Apr 4, 2022 at 08:30 PM. Reason: duhhhhhh
More Turbo
Joined: Dec 2011
Posts: 739
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Agree, with emphasis on "all bulbs" since some of the light assemblies have two bulbs and it's hard to tell that only one has failed.
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5th Wheeling
Joined: Jan 2021
Posts: 37
Likes: 19
From: Dallas
Sometimes I hate computers because my OCD is fixated on the fact I can hear the rapid flasher but can't see the turn signal.
Has anyone else experienced this?
VR,
David
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5th Wheeling
Joined: Jan 2021
Posts: 37
Likes: 19
From: Dallas
VR,
David
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More Turbo
Joined: Dec 2011
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It started after renting a trailer, so maybe there's a loose connection on a wire harness. I'd disconnect the harnesses from the trailer plugs under the rear bumper and coat them with dielectric grease. Then check the harnesses up near the spare tire and do the same to them. Both have been known to cause weird electrical issues from water intrusion or loose connections. Some have reported issues when moisture got inside their rear lights too.
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More Turbo
Joined: Aug 2018
Posts: 509
Likes: 97
From: Huttonsville, WV
Folks,
A weird thing happened last week. I rented a trailer, did my thing and returned it. Afterward the left blinker indicator on the dash went on fast mode so I thought maybe a bulb or the relay failed.. Nope all lights modes (brake, hazard, turn etc.) function normally and at the correct speed. I did a search at Rock Auto for a flasher relay but no joy. Any one have a fix?
VR,
David
A weird thing happened last week. I rented a trailer, did my thing and returned it. Afterward the left blinker indicator on the dash went on fast mode so I thought maybe a bulb or the relay failed.. Nope all lights modes (brake, hazard, turn etc.) function normally and at the correct speed. I did a search at Rock Auto for a flasher relay but no joy. Any one have a fix?
VR,
David
4th Gear
Joined: May 2019
Posts: 4
Likes: 0
I'm having exact same problem. 2017 XLT Powerstroke. Driver side. All bulbs flashing externally at correct interval - on/off. But in the cab the driver side indicator flashes at a fast pace. It was intermittent for several months. Now it's all the time. My case is not related to any recent trailer hook up. I'm at the point to where I'm just going to replace all the turn signal bulbs. If anyone has a better idea - would be much appreciated. Thx
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