1972 F100 LED Blinker Problem
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1972 F100 LED Blinker Problem
I have a 1972 F100 which i just recently replaced all my lights to LEDs, as well as my flasher relays. Everything Works Perfectly, Except (And Yes, There's always an except) my Right Blinker when i turn it on doesn't flash or stay solid or anything, If i'm lucky It will flash once. My Hazards don't work either ( Only the left side Works) My Running Lights also on Work on the Left Side.
Note: My blinkers Worked fine before the LED Switch and the Flasher Replacement.
Please Help!!!
Thank You,
-Kevin
Note: My blinkers Worked fine before the LED Switch and the Flasher Replacement.
Please Help!!!
Thank You,
-Kevin
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
Clean and reseat the affected bulbs & sockets.
IIRC, the flasher relays are the same. You may want to try swapping them to see if the problem follows... it could be one flasher is more sensitive than the other due to electrical/electronic tolerance variations between units.
IIRC, the flasher relays are the same. You may want to try swapping them to see if the problem follows... it could be one flasher is more sensitive than the other due to electrical/electronic tolerance variations between units.
Logistics Pro
Joined: Dec 2004
Posts: 4,651
Likes: 60
From: Hemet ca.
What flasher replacement did you go with? The ones for the LED's? Check the plugs real good where the flashers plug in. Clean real good.
Then check bulbs and grounds. I've seen ground wires behind the housings in the rear. Remove housings to verify.
I've stripped many trucks, some things look factory and some.... well they look, some thing.
Then check bulbs and grounds. I've seen ground wires behind the housings in the rear. Remove housings to verify.
I've stripped many trucks, some things look factory and some.... well they look, some thing.
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New User
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What flasher replacement did you go with? The ones for the LED's? Check the plugs real good where the flashers plug in. Clean real good.
Then check bulbs and grounds. I've seen ground wires behind the housings in the rear. Remove housings to verify.
I've stripped many trucks, some things look factory and some.... well they look, some thing.
Then check bulbs and grounds. I've seen ground wires behind the housings in the rear. Remove housings to verify.
I've stripped many trucks, some things look factory and some.... well they look, some thing.
Cargo Master
Joined: Feb 2006
Posts: 3,009
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From: North Pole, Alaska
A flasher unit uses a resistor wire that heats up and cools to make and break the circuit. With LED bulbs, I don't think that there is enough resistance in the circuit to make the thermal wire heat up enough to make and break the circuit.
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I have an LED flasher and one blinker works.
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Logistics Pro
Joined: Aug 2015
Posts: 4,093
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From: Lind, WA- Eastern WA
The LED flashers work by voltage. Not Amperage(like the old style). So if he's got 12V the flasher will work. I think HIO idea was a good one. IF the bulbs are the correct ones and are good, the problem is in a weak ground.
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I've checked the two grounds (front left and back right) everything works except the right blinker even the hazards.
Fleet Owner
Joined: Dec 2009
Posts: 20,678
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From: NorCal
Install/plug in the right headlight and try it again....
Your truck looks like my 71's twin...https://www.ford-trucks.com/forums/1...n-71-f250.html
... here's the wiring diagram: http://www.fordification.com/tech/wi...m-72_quick.jpg
Trace the White/Blue wire from the right directional signal and you'll see the signal comes from two locations. The hazard switch works... the TSS doesn't.
Your truck looks like my 71's twin...https://www.ford-trucks.com/forums/1...n-71-f250.html
... here's the wiring diagram: http://www.fordification.com/tech/wi...m-72_quick.jpg
Trace the White/Blue wire from the right directional signal and you'll see the signal comes from two locations. The hazard switch works... the TSS doesn't.
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