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krazykustomz
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69 Posts
Discussion Starter #1
hello all, i just bought a 95 f350 turbo diesel,it had a plow hook up, anyways the turn signals wont work, the hazards do,,i checked all wires flashers are new the round thing in fusebox, my question is could it be the switch itself??? the wipers work as do hi beams but if they work does it mean the switch itselfs good? please help thanks:shrug:
 

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krazykustomz
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69 Posts
Discussion Starter #2
also checked fusebox with test light and getting no power from the turn signal flasher or the turn signal fuse!!!! please help
 

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Demon Dually
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5,140 Posts
There is more than one fuse. Fuse "L" in the power distribution box under the hood which is the center row maxi fuse(50A) closest to the front of the truck feeds fuse #13 in the fuse block in the dash. Check for power there first. Without power at fuse #13 you have no brake lights either as power to the brake switch is supplied by fuse #13 as well. Replace both fuses at location #13 in the dash fuse panel and Fuse "L" in the power distribution block under the hood and then check for power at both terminals in the opening for the directional flasher which is the one facing you when you pull the fuse panel cover off. If you get power to that point but the signals still don't work you want to pierce and test for power on the LT BLUE wire coming off of the directional falsher location. That wire sends power to the multi function switch for the turn signals. I am willing to bet that the fuse "L" is probably your problem though.
 

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krazykustomz
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69 Posts
Discussion Starter #4
i checked all fuses in cab under hood,still nothing, i have brake lights and everything else works fine but turn signals,i did new flashers and nothing,im at a loss
 

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Demon Dually
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5,140 Posts
Paul pm replied to. By still nothing do you mean no power or do you mean the signals just don't work? If you have power and the signals still don't work the the switch is bad.
 

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krazykustomz
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69 Posts
Discussion Starter #6
no power to the number 7 fuse which is the turn signal fuse which is a 15 amp. then i checked the flashers theres 2 one for the 4 ways and 1 for turn signals, i checked both with test light to see if i got power, well the 4 ways has power the turn signals dont,but all lights work, brake lights,running lights,headlights,parking lights, if the multi function switch is bad would it make it loose power to the 2 items in fusebox? but wipers and high beams and flash to pass work fine
 

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Demon Dually
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5,140 Posts
No it wouldn't but the ignition switch which feeds the fuse which feeds the directional can which then travels to the switch would. Replied to pm again. Check the Grey/yellow wire at the ignition switch for power with the key in the run position. If no power there either the igntion switch has gone bad or is out of adjustment but i would lean towards bad.
 

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Dreams of owning cclb
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695 Posts
Just a problem mine has...try signaling just a little bit and see if it works. if I pull the level all the way down to where is stays like it should the signal does not work. but if I pull it part of the way down then it works fine...its a pain.:shrug:
 

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Demon Dually
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5,140 Posts
We diagnosed his problem. It was a bad ignition switch. the actual switch down on the column underneath.
 

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Registered
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1,209 Posts
Common failure is the switch itself. If it works kinda sorta as in part way down than it's probably the switch. MIne was bad. A lot of the time the 4 ways will still work. Agreed it could also be the ignition switch!
 

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Demon Dually
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5,140 Posts
He had no power coming from the ignition switch to the fuse for the turn signals. Diagnostic process of elimination. Start at the beginning and work your way forward. In his case no power at the fuse so the only thing before the fuse was the ignition switch. When I had him jump the two sides of the circuit manually the signals worked.
 

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Registered
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1,209 Posts
Missed that part of the conversation! Sorry your exactly right I do my work the same way
 
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