Notices
1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Electrical issue

Thread Tools
 
Search this Thread
 
Old Nov 7, 2012 | 05:44 PM
  #1  
Marky48170's Avatar
Marky48170
Thread Starter
|
65 f250, 67 f100, 76 f250
Joined: Mar 2011
Posts: 233
Likes: 0
From: Michigan
Club FTE Silver Member

Electrical issue

Ok, here goes. 1965 F250 CS with original AM radio. It just seems to happen in the morning, haven't really noticed it any other time but when ever I turn on the turn signals the light on the radio dims with the flashes of the turn signal and can also here it through the speaker. I know its an old radio and I'm not looking to rebuild it either, just wonder if there might be a ground issue or something else that someone has worked on before. Just don't want it to get any worse than what it is.
 
Reply
Old Nov 7, 2012 | 06:00 PM
  #2  
DPhillips's Avatar
DPhillips
Senior User
Joined: Aug 2003
Posts: 127
Likes: 0
Have you tried a different flasher? Static in the radio would indicate something sparking, maybe the internal flasher contacts?
 
Reply
Old Nov 7, 2012 | 07:15 PM
  #3  
Marky48170's Avatar
Marky48170
Thread Starter
|
65 f250, 67 f100, 76 f250
Joined: Mar 2011
Posts: 233
Likes: 0
From: Michigan
Club FTE Silver Member

Yup, tried different flasher. Also went with an electronic one and still does it.
 
Reply
Old Nov 7, 2012 | 08:51 PM
  #4  
rustywheel68's Avatar
rustywheel68
Posting Guru
Joined: Mar 2006
Posts: 1,182
Likes: 1
i would guess ground issue.
 
Reply
Old Nov 8, 2012 | 04:51 AM
  #5  
jowilker's Avatar
jowilker
Fleet Owner
25 Year Member
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Club FTE Silver Member

+1 on the ground. They used to make noise suppressors for those old radios. I haven't used one for so long I don't recall what they were called. You may want to look in that direction.





John
 
Reply
Old Nov 8, 2012 | 06:54 AM
  #6  
schoo's Avatar
schoo
Logistics Pro
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2012
Posts: 4,385
Likes: 26
From: placer county usa?
Originally Posted by jowilker
+1 on the ground. They used to make noise suppressors for those old radios. I haven't used one for so long I don't recall what they were called. You may want to look in that direction.





John
i agree with john but that is old tec thinking
new think do you have 1 wire alt?
2cents from roy
 
Reply
Old Nov 8, 2012 | 07:00 AM
  #7  
Marky48170's Avatar
Marky48170
Thread Starter
|
65 f250, 67 f100, 76 f250
Joined: Mar 2011
Posts: 233
Likes: 0
From: Michigan
Club FTE Silver Member

No, on the 1 wire alt.
 
Reply
Old Nov 8, 2012 | 02:25 PM
  #8  
SuperSabre's Avatar
SuperSabre
Laughing Gas
Joined: Dec 2010
Posts: 1,091
Likes: 14
From: Tucson, Arizona
I know that turn signals and radio are originally designed to be on the same 14A circuit, but in the absence of other ideas, maybe just temporarily for troubleshooting purposes, how 'bout taking the radio power off of that circuit and running a separate one of its own? That way you can see if the problem migrates or goes away. Did the problem start just recently? Can you think of any electrical changes that happened between the time it worked OK and now? Maybe run an additional new, clean ground wire? Good luck!
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Nov 9, 2012 | 03:38 AM
  #9  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Club FTE Gold Member
Originally Posted by jowilker
+1 on the ground. They used to make noise suppressors for those old radios. I haven't used one for so long I don't recall what they were called. You may want to look in that direction.
C3MY-18A952-A .. Radio Receiver Suppression (noise) Resistor-Attaches to ICVR / 1965/66 F100/1100 /1966/77 Bronco / 1967/69 F100/750.
 
Reply
Old Nov 9, 2012 | 04:16 AM
  #10  
jowilker's Avatar
jowilker
Fleet Owner
25 Year Member
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Club FTE Silver Member

Originally Posted by schoo
i agree with john but that is old tec thinking
new think do you have 1 wire alt?
2cents from roy
Roy, the man sed "1965 F250 CS with original AM radio" how can it not be old tec???



John
 
Reply
Old Nov 12, 2012 | 08:06 AM
  #11  
Marky48170's Avatar
Marky48170
Thread Starter
|
65 f250, 67 f100, 76 f250
Joined: Mar 2011
Posts: 233
Likes: 0
From: Michigan
Club FTE Silver Member

Well haven't had a chance to look at it this weekend, but this morning I noticed that the ALT light was dimly lity when my blower motor was on low and got even brighter when turned to high. Also when I turn my turn signals on it would dimly flash with the turn signal. So is it the alt or the regulator or both?
 
Reply
Old Nov 13, 2012 | 11:00 AM
  #12  
rustywheel68's Avatar
rustywheel68
Posting Guru
Joined: Mar 2006
Posts: 1,182
Likes: 1
I think it could still be a ground problem.
To make sure the alt is putting out enough juice, check voltage across the battery terminals while the truck is running, and then with blower motor in high & low.

if readings are ~14v, i'd be cleaning all the grounds.
 
Reply
Old Nov 13, 2012 | 11:10 AM
  #13  
David9842's Avatar
David9842
New User
Joined: Aug 2012
Posts: 5
Likes: 0
hey i have a 83 f100 ranger with a 300 6 cylinder. the problem is that it will not crank but i hear a click and i can get under the truck and start it by jumping the starter with another truck and it runs fine. but it will not start with the key or by jumping the solenoid. I'm thinking its a wiring problem any help plz
 
Reply
Old Nov 13, 2012 | 01:23 PM
  #14  
Marky48170's Avatar
Marky48170
Thread Starter
|
65 f250, 67 f100, 76 f250
Joined: Mar 2011
Posts: 233
Likes: 0
From: Michigan
Club FTE Silver Member

Well checked battery getting 14v and with blower on it only drops to 13v. Looks like I'm cleaning ground wires.
 
Reply
Old Nov 19, 2012 | 01:51 PM
  #15  
Marky48170's Avatar
Marky48170
Thread Starter
|
65 f250, 67 f100, 76 f250
Joined: Mar 2011
Posts: 233
Likes: 0
From: Michigan
Club FTE Silver Member

Well the problem is gone, gone for good! I was sitting in a parking lot and a guy walked up to me and asked me if I would sell it to him and I said sure, so I threw out a number and he said fine . He gave me a deposit right there and now it's his. So thank you everybody for there help. Now to find another one either a slick or a bump for my daily driver.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
OafDawg
2015 - 2020 F150
1
Jun 9, 2017 05:46 AM
fordtruck661
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
1
Mar 2, 2014 05:26 PM
Bunggo
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
5
Mar 4, 2004 12:37 AM
Vanhecht
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
9
Jan 10, 2004 11:27 AM




All times are GMT -5. The time now is 12:08 PM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE