Turn Signal problems
Thread Starter
|
Senior User
Joined: Oct 2010
Posts: 277
Likes: 0
From: Oshkosh, Ne
Turn Signal problems
I have a 1978 f250 4x4 with a 429. i was trying to figure out if i my voltage regulator was bad cause my gas gauge did not work. and after i had taken the dash apart and put it back together my turn signals completely quit working. they dont even make any clicking sounds. although my hazards work and make the clicking sound. but the turn signals do nothing, no light comes on no nothing, so i checked all the fuses they are all good. there are two round silver bottle cap looking things under there to that said flasher on them. so i replaced those and still nothing. i am not sure what is wrong or what i need to do. please help. 
Posting Guru
Joined: Nov 2009
Posts: 1,219
Likes: 4
From: Norton, MA
The two silvers are the flashers/blinkers/things that make the clicking sound. The clicking is something in there heating up from electric current, and making/breaking contact, clicking as it does it, and completing the circuit intermittently.
If your hazards work then your flashers are and were fine, I had this problem when I first bought my truck... trying to remember. The turn signals are on a switch in a sort of plastic disk in the steering column, right where the lever goes in, that part cooould be bad, but I doubt it would go coincidentally right after you did that work.
My truck's in 10,000 pieces right now or I'd just go out and check, maybe someone else will know, or I'll remember.
If your hazards work then your flashers are and were fine, I had this problem when I first bought my truck... trying to remember. The turn signals are on a switch in a sort of plastic disk in the steering column, right where the lever goes in, that part cooould be bad, but I doubt it would go coincidentally right after you did that work.
My truck's in 10,000 pieces right now or I'd just go out and check, maybe someone else will know, or I'll remember.
Posting Guru
Joined: Aug 2010
Posts: 1,761
Likes: 8
From: Knoxville, TN
Most likely you inadvertently disconnected the wire supplying the turn signals with power. I don't know how much difference there is between the wiring on a '74 and a '78, but I think in mine it daisy-chains over from the back of the wiper switch. Get a copy of the wiring diagram and trace it out with a volt meter.
Thread Starter
|
Senior User
Joined: Oct 2010
Posts: 277
Likes: 0
From: Oshkosh, Ne
ok well i have an update, when i got in behind the dash and did some more digging there are some wires leaving the cab in what would be the inside of the fender. these wires are bare and some are almost not there. there are only two that i could see. i have a couple of pics but cant figure out how to upload them.
Thread Starter
|
Senior User
Joined: Oct 2010
Posts: 277
Likes: 0
From: Oshkosh, Ne
figured it out here we go
as you can see in the first pic the wire is all but gone right there. and in the second one it is just missing its outer layer. but i dont know how to replace that kind of connector. the connector in the first picture is directly below the one in the second picture if that makes sense. and the bare wire in the second picture is the one that connects the to connectors together.
as you can see in the first pic the wire is all but gone right there. and in the second one it is just missing its outer layer. but i dont know how to replace that kind of connector. the connector in the first picture is directly below the one in the second picture if that makes sense. and the bare wire in the second picture is the one that connects the to connectors together.
Thread Starter
|
Senior User
Joined: Oct 2010
Posts: 277
Likes: 0
From: Oshkosh, Ne
well upon further investigation I found there are several wires that are fried. So it looks like I need to replace the wiring harness for all of the lights behind the instrument panel.
Trending Topics
Junior User
Joined: Jan 2006
Posts: 64
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
Senior User
Joined: Oct 2010
Posts: 277
Likes: 0
From: Oshkosh, Ne
well upon even further investigation i found that the really frayed out wire goes to the headlight switch and is completely disconnected. so it must have finished breaking when i was back there playing with my fuel gauge stuff. but i found a guy parting out a 78 f250 and he sold me the wires i needed and a spare rim for $40 so that wasn't bad. although i had to cut the wires out with some snips could not get one whole piece so it might be interesting to fix but i think i can get it done. just need to match up the colored wires i think. gonna try that in the morning.
Thread
Thread Starter
Forum
Replies
Last Post
busakiller2001
1994.5 - 1997 7.3L Power Stroke Diesel
38
Nov 12, 2010 11:50 AM
dinikin
1994.5 - 1997 7.3L Power Stroke Diesel
21
Nov 4, 2007 01:34 PM
