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Unread 03-05-2014, 11:09 AM   #1
chefaustino
Registered User
1991 YJ Wrangler 
 
Join Date: Oct 2013
Posts: 14
Turn signals not working

So bit of a issue here.
For a while my jeep was blowing through turn signal fuses.
Now even with a brand new fuse in they don't work.
Before they stopped working completely when I would use my turn signal they would turn on and stay lit without flashing. On my inside indicators as well.
I have the Haynes repair manual but its not giving me any direct knowledge on my specific problem.
So That's why I'm coming to you guys!
Any words of wisdom?

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Unread 03-05-2014, 11:36 AM   #2
69moparman
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1990 YJ Wrangler 
 
Join Date: Dec 2010
Location: Centerport, PA
Posts: 187
First, check your bulbs. With the parking lights OFF, put the turn signal on and check all three bulbs. Front, back, and front side marker. They should all be ON, if not flashing. Put the other signal on and repeat. If one bulb is not on, that's your bad one. Be sure your flasher is good. Replace it with a known good flasher and see if they work. If not, check your fuse again, using a continuity gauge, don't depend on mere sight, sometimes they burn out inside the end cap and you won't see the break. Still nothing? Remove the bulbs, one at a time, and check the bulb base contacts in each socket for voltage. All this with the parking lights OFF. If there's no voltage in the sockets, you've got an issue with either the switch or wiring. Do your hazard flashers work? Check that, and if they're flashing, check to make sure all the bulbs are working. If they are, your problem is in the turn signal flasher or switch.
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Unread 03-05-2014, 12:15 PM   #3
chefaustino
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1991 YJ Wrangler 
 
Join Date: Oct 2013
Posts: 14
That's great! More detail then I had hopped for. Thank you. What exactly is the flasher though? My apologies if that's a dumb question. I'm still learning these things.
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Unread 03-05-2014, 01:15 PM   #4
Mark05059
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1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,402
they are about an inch around.. silver usually plugged into the fuse box. There are 2.. one is for the turn signals the other is for the hazard flashers.
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1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
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Unread 03-05-2014, 01:22 PM   #5
YJ4LIFE
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1989 YJ Wrangler 
 
Join Date: Dec 2011
Location: , San Angeles
Posts: 751
mine blows when my reverse lights go on. I had to disconnect my reverse light switch in the transmission
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'89 YJ, 4.2L, ax-15, B&M shifter, 1" BL, TJ flares, '99 intake, '91 EFI, 5.0L explorer injectors, GenRight tank & stretch, 35" ProComp Xtreme muds, 52" chevy springs rear, 44044 Ranchos front.....
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Unread 03-05-2014, 01:29 PM   #6
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 15,707
YJ your harness is shorted probably at the 6 way connector going down the fire wall near the middle on the the left hand side of the engine compartment. Mine shorted because it got a little too close to the manifold.
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Unread 03-07-2014, 11:32 PM   #7
chefaustino
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1991 YJ Wrangler 
 
Join Date: Oct 2013
Posts: 14
Thanks for the great tips, I'll be checking into this as soon as it gets a little warmer.
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