turn signals don't work

50

Asked by adam Nov 24, 2018 at 05:40 PM about the 1989 Ford F-150 S Standard Cab LB

Question type: Maintenance & Repair

I have replaced the bulbs and I installed a new
switch I have working hazards but no turn signals  
and ideas

16 Answers

9,520

Did you install the correct bulbs? This is strange because the hazards and the turn signals as well as the brake lights all use the same wire. There is a separate flasher for the turn signal it could be that. Try this find one flasher turn the hazards on to see if it's the hazard or turn signal, then find the other around the steering column the one not flashing will be the turn flasher, I hope this helps

26,810

My wiring diagram for your model year isn't the best, it showed a turn fuse and a different hazard fuse. Turn fuse, fuse 5--15 amp in fuse box, check the fuse. Just a thought.

2 people found this helpful.
50

fuse is good and I put correct bulbs. I have all lights except turn signals. I just had the whole column opened up putting the new turn signal switch. the flasher fuse is also brand new. I'll habe to see if I can find a second flasher fuse but I haven't seen one so far

3 people found this helpful.
26,810

Did you check for voltage at turn fuse? Use a test light to check for voltage, should go hot with the key on.

9,520

Turn on the hazards and feel that flasher is it's clicking look for the other one. The dealer or some pars stores have component locators that I'm sure will direct you to one of the column braces although I've seen them hidden behind the glove box so you never know. Let me know how you turn out, questions on this site show up on My email

1 people found this helpful.
50

I don't seem to be getting power to my flasher for my turn signals. I pulled flasher off and hooked it to hazard and the flasher fuse worked so now I gota figure out why there's no power to turn signal flasher in fuse box

50

there's gota be a short somewhere. I put a new fuse in my turn signal spot and as soon as I touched hazards it started burning the fuse apart

1 people found this helpful.
50

I turn truck off put in another fuse. as soon as I turned on power. it blew fuse to the turn signal. so now to trace grounds and wires

9,520

Does it blow the fuse if the hazards and turn signals are off? If no leave the hazards off and move the sig switch one way then the other, does it blow the fuse on one side and not the other? If yes check that side it's usually in the rear. If the fuse blows with everything off look at where the wiring harness goes into the column they like to rub through there, if not unplug the column harness if the ground goes away the problem is in the column.

2 people found this helpful.
50

the column is all new I just installed it 3 days ago. and it blurs with everything off. all I gota do to blow fuse to turn ignition on it blows instantly

9,520

Look at the column mounts to see if you have a pinched wire.

1 people found this helpful.
50

I bought new fuses and unplugged and replied up column wires and now no problems. I had some old fuses before. but now it all works fine

1 people found this helpful.

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