Notices

Odd front pass blinker behavior

Thread Tools
 
Search this Thread
 
Old Aug 17, 2022 | 07:23 PM
  #1  
Sci79Ranger's Avatar
Sci79Ranger
Thread Starter
|
Tuned
Photogenic
Liked
Loved
Community Favorite
Joined: Aug 2022
Posts: 443
Likes: 62
From: Chicopee, MA
Odd front pass blinker behavior

Hello all, i have searched and could not find something quite similar as my current issue.
I have a 1979 F100 ranger, when i got it every light except one rear marker worked (bad bulb) now the pass side blinker was dimmer than the left and the hazards blink fast and sorta dim.
Today i cleaned the pass side plug and bulb. Swapped bulbs and it seemed to get a bit better, also cleaned the positive and ground side of the battery which only seems to have one cable going to the engine and i have a single white wire going to black box next to the 3 pole that's literally just twisted together …

However after doing all this PLUS cleaning one side of my 4 pole (pos cable side) i no longer have a pass blinker or turn signal, also neither light will light up as a parking light. All other lights work as normal. Drivers side front blinks and hazards fine. Rears are fine.
Could it just be a bad socket that finally went out? Broken ground somwhere? would the TS switch/flasher single out one bulb? Are these lights even parking lights?

I am at a loss and I am trying to get it ready for inspection. Any help would be appreciated.
 
Reply
Old Aug 18, 2022 | 01:56 PM
  #2  
Franklin2's Avatar
Franklin2
Moderator
25 Year Member
Photogenic
Community Builder
Community Influencer
Joined: Jan 2001
Posts: 57,005
Likes: 2,750
From: Virginia
Club FTE Gold Member
The best thing to do is find those wires to that light, get a testlight and clip the one lead to the ground on the battery, and then poke those two wires going to the light that is not lit. Make sure you have the turn on that side on, and the park lights are on too. In that mode one wire should be blinking and blink the testlight, the other wire should have power all the time and light the testlight constant. If this test passes, you know your wiring to the light is good, and there is something wrong at the socket.

You can get a testight like this one cheap at harbor freight.

https://www.harborfreight.com/612v-c...12+volt+tester
 
Reply
Old Aug 18, 2022 | 02:42 PM
  #3  
Sci79Ranger's Avatar
Sci79Ranger
Thread Starter
|
Tuned
Photogenic
Liked
Loved
Community Favorite
Joined: Aug 2022
Posts: 443
Likes: 62
From: Chicopee, MA
Originally Posted by Franklin2
The best thing to do is find those wires to that light, get a testlight and clip the one lead to the ground on the battery, and then poke those two wires going to the light that is not lit. Make sure you have the turn on that side on, and the park lights are on too. In that mode one wire should be blinking and blink the testlight, the other wire should have power all the time and light the testlight constant. If this test passes, you know your wiring to the light is good, and there is something wrong at the socket.

You can get a testight like this one cheap at harbor freight.

https://www.harborfreight.com/612v-c...12+volt+tester
Thanks Dave, I'll have a go shortly, i did grab a new socket just incase and 2 new bulbs. I have a test light already, i Just feel i wiggled something I shouldn't have.
Funny thing my name is Dave, the guy i bought it from is also named Dave lol
Thanks again!
 
Reply
Old Aug 18, 2022 | 08:06 PM
  #4  
Sci79Ranger's Avatar
Sci79Ranger
Thread Starter
|
Tuned
Photogenic
Liked
Loved
Community Favorite
Joined: Aug 2022
Posts: 443
Likes: 62
From: Chicopee, MA
Was a bad socket lol

 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dustin_in_PDX
1973 - 1979 F-100 & Larger F-Series Trucks
3
Jul 20, 2021 05:52 AM
Broncor
1987 - 1996 F150 & Larger F-Series Trucks
17
Oct 5, 2019 08:30 AM
phil64
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
1
Nov 9, 2018 03:42 PM
chiefsfootball
1967 - 1972 F-100 & Larger F-Series Trucks
2
Jan 8, 2015 03:13 PM
solidrunner
1973 - 1979 F-100 & Larger F-Series Trucks
13
Aug 24, 2007 08:53 AM




All times are GMT -5. The time now is 04:07 AM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE