Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

Turn signal problem

Thread Tools
 
Search this Thread
 
Old Jan 5, 2016 | 10:01 AM
  #1  
eog037's Avatar
eog037
Thread Starter
|
New User
15 Year Member
Joined: Apr 2009
Posts: 5
Likes: 0
From: Bonita
Turn signal problem

I recently purchased a 1999 Ford F250 Super Duty withba V10. On cold mornings my turn signals won't work but my flashers will. Turn signals only work when the cab heats up and get warm on the inside. I found the flasher that works both the turn signal and Hazzard lights. Right next to the flasher are two little five prong relays. What are they for? And also what could cause my turn signals not to work when it's cold in the morning? your help would be greatly appreciated thank you.
Esteban O Guerrero
Bonita, California
 
Reply
Old Jan 5, 2016 | 10:18 AM
  #2  
projectSHO89's Avatar
projectSHO89
Hotshot
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jan 2004
Posts: 19,768
Likes: 1,082
From: St Louis
On cold mornings my turn signals won't work but my flashers will. Turn signals only work when the cab heats up and get warm on the inside.
Probably the multi-function switch or its connectors.

Right next to the flasher are two little five prong relays. What are they for?
One is the fuel pump relay. The other is the trailer running lamp relay.
 
Reply
Old Jan 5, 2016 | 10:25 AM
  #3  
eog037's Avatar
eog037
Thread Starter
|
New User
15 Year Member
Joined: Apr 2009
Posts: 5
Likes: 0
From: Bonita
Thank you. I will be working on that after work. Also thank for the info on the two relays.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stecz
Excursion - King of SUVs
10
Jan 11, 2024 05:35 PM
eog037
General Automotive Discussion
2
Nov 26, 2016 07:24 PM
98rangerll
1999 - 2016 Super Duty
1
Sep 15, 2015 12:37 PM
PeteC
1999 - 2016 Super Duty
1
Jan 31, 2005 04:45 PM




All times are GMT -5. The time now is 01:19 PM.

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