1997 F-350 Turn Signal Problems - Ford Truck Enthusiasts Forums

Notices
1994.5 - 1997 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by:

1997 F-350 Turn Signal Problems

Reply

 
 
 
  #1  
Old 08-25-2014, 06:59 AM
BillJones
BillJones is offline
New User
Thread Starter
Join Date: May 2014
Posts: 11
BillJones is starting off with a positive reputation.
1997 F-350 Turn Signal Problems

I am chasing an electrical issue with my 97 F-350. The rear lights have not worked properly in the several months that I have owned the truck. This weekend I took the flatbed off to fix it, and thought that I wouldtry to figure out the wiring problem.

My problem is that when I turn on the left turn signal, I get 12 volt on that wire and 8 volts on the wire for the right turn signal. It is the same for the right turn signal, 12volts on the right wire and 8 volts on the left wire.
The front signals do not have this issue, it is only with the rear of the truck. There is also a group of wires running to the rear of the truck for a trailer plug that appear to be factory wires. These wires mimic the same behavior as the wire for the truck lights.

Can anybody help shed some light on my situation?
Thanks,
Bill
 
Reply With Quote
  #2  
Old 08-25-2014, 07:31 AM
fordpride's Avatar
fordpride
fordpride is offline
Post Fiend
Join Date: Dec 2009
Location: Livoina,La
Posts: 15,140
fordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant futurefordpride has a brilliant future
Does it have LED lights on it ?
 
Reply With Quote
  #3  
Old 08-25-2014, 07:49 AM
BillJones
BillJones is offline
New User
Thread Starter
Join Date: May 2014
Posts: 11
BillJones is starting off with a positive reputation.
Originally Posted by fordpride View Post
Does it have LED lights on it ?

No, it does not have any lights on it. The bed is sitting on a metal stand beside the truck.

Bill
 
Reply With Quote
  #4  
Old 08-25-2014, 08:58 AM
Hussler's Avatar
Hussler
Hussler is online now
Postmaster
Join Date: Sep 2007
Location: Medford Oregon
Posts: 3,887
Hussler is a name known to allHussler is a name known to allHussler is a name known to allHussler is a name known to allHussler is a name known to allHussler is a name known to all
Could be quite normal. PCM put out a voltage, through a pull up resistor, to monitor rear brake - turn signal functionality.

What is the original problem causing you to troubleshoot?
 
Reply With Quote
  #5  
Old 08-25-2014, 09:18 AM
Hussler's Avatar
Hussler
Hussler is online now
Postmaster
Join Date: Sep 2007
Location: Medford Oregon
Posts: 3,887
Hussler is a name known to allHussler is a name known to allHussler is a name known to allHussler is a name known to allHussler is a name known to allHussler is a name known to all
Here is a link describing the situation and why it does it ...

http://www.google.com/url?sa=t&rct=j...73612305,d.aWw

I would just attach the PDF however don't know how to do that.
 
Reply With Quote
  #6  
Old 08-25-2014, 09:44 AM
BillJones
BillJones is offline
New User
Thread Starter
Join Date: May 2014
Posts: 11
BillJones is starting off with a positive reputation.
The reason I removed the bed was that it must have lived it previous life in a Salt mine. It was very rust to the point that I didnt trust hooking a trailer to it. I have new CM flatbed waiting to go on the truck as soon as I get the frame rails painted.

Prior to removing the bed you could notice a faint hint of the opposite turn signal trying to illuminate when using the other sides turn light.

Your post makes he hopefull that it could be a small issue with grounding.

Bill
 
Reply With Quote
  #7  
Old 08-25-2014, 09:44 AM
madpogue
madpogue is offline
Post Fiend
Join Date: Oct 2003
Location: Madison, WI
Posts: 8,435
madpogue is a splendid one to beholdmadpogue is a splendid one to beholdmadpogue is a splendid one to beholdmadpogue is a splendid one to beholdmadpogue is a splendid one to beholdmadpogue is a splendid one to beholdmadpogue is a splendid one to behold
Rather than attach the PDF, post the direct (no CIA-gle) link to it: https://www.ford-trucks.com/forums/a...chmentid=49079

FIRST thing to check is the center stop light in the cab roof.
 
Reply With Quote
  #8  
Old 08-25-2014, 02:53 PM
BillJones
BillJones is offline
New User
Thread Starter
Join Date: May 2014
Posts: 11
BillJones is starting off with a positive reputation.
Originally Posted by madpogue View Post
Rather than attach the PDF, post the direct (no CIA-gle) link to it: https://www.ford-trucks.com/forums/a...chmentid=49079

FIRST thing to check is the center stop light in the cab roof.
The center stop light was the culprit. Thank you very much.

Bill
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vortec 1
1999 to 2016 Super Duty
507
05-21-2018 11:29 AM
John Rowe
1973 - 1979 F-100 & Larger F-Series Trucks
15
11-21-2016 09:13 AM
old blue beast
1987 - 1996 F150 & Larger F-Series Trucks
3
08-05-2016 08:28 PM
Craig46
1947 and Older Ford Trucks
35
12-19-2015 02:16 PM
jayzad
1973 - 1979 F-100 & Larger F-Series Trucks
0
02-27-2013 06:11 AM


Thread Tools
Search this Thread
Quick Reply: 1997 F-350 Turn Signal Problems


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: