Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Thermostat Question

Thread Tools
 
Search this Thread
 
Old Dec 1, 2012 | 06:54 AM
  #1  
chucknmesa's Avatar
chucknmesa
Thread Starter
|
Freshman User
Joined: Jul 2006
Posts: 37
Likes: 0
Thermostat Question

I purchased my 06 Super Duty diesel pickup in Arizona, new. Moved to South Dakota and have had issues with the truck warming up. Even in summer, have to warm up for 5-8 minutes before driving it and in winter, even with the block heater plugged in, takes about 30 min of idling to be able to drive without truck acting like its missing. Is there a difference in thermostats used in vehicles purchased in different parts of the country? Im thinking my problem could be related to the termostat opening to soon, not allowing the coolant to heat up properly. Any ideas?
 
Reply
Old Dec 1, 2012 | 07:50 AM
  #2  
Tom's Avatar
Tom
Super Moderator
20 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
Club FTE Gold Member
I think it's likely that something is wrong other than the thermostat. You should be able to start your truck up in 10° weather after sitting for weeks and drive down the road without it running badly. Sounds to me like you're having injector stiction, but I'm certainly not the expert.

I'm going to send this one down to the 6.0L Powerstroke forum.
 
Reply
Old Dec 1, 2012 | 09:07 AM
  #3  
Curt's05's Avatar
Curt's05
Wiser by FTE
15 Year Member
Joined: Jan 2010
Posts: 2,837
Likes: 48
Club FTE Silver Member

It could be your glow plugs not working. I had a open thermostat and my 04 ran fine in cold weather.
 
Reply
Old Dec 1, 2012 | 09:11 AM
  #4  
amdriven2liv's Avatar
amdriven2liv
I'm hitting easy street
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Club FTE Silver Member

Test the FICM also.
 
Reply
Old Dec 1, 2012 | 09:13 AM
  #5  
69cj's Avatar
69cj
Hotshot
20 Year Member
Photogenic
Joined: Jul 2005
Posts: 13,834
Likes: 26
From: Middle Tn.
You also and first need to check the ficm voltage key on, key on cranking and key on running. Should never be below 47 volts. What type of oil and filters are you running. Only OEM filters for the fuel and oil. When cold try 5w40 oil. I run it year around. The truck likes it.
 
Reply
Old Dec 1, 2012 | 11:21 AM
  #6  
dannyboy950's Avatar
dannyboy950
Posting Guru
Joined: Nov 2012
Posts: 2,123
Likes: 5
While thermostats are the same you may need to have your truck pcm recalibrated to the different environment it is living/working in. Thats a pretty big jump in both operateing temps and altitude depending on where in s.dakota.

Check with ford.
 
Reply
Old Dec 1, 2012 | 11:46 AM
  #7  
daddykitty's Avatar
daddykitty
Elder User
Joined: Jul 2012
Posts: 834
Likes: 0
From: tonopah, az
What kind of oil are you running? If you are from AZ like i am you would have been running 15-40. Did you change to a 5-40 for the colder weather?
 
Reply
Old Dec 1, 2012 | 02:25 PM
  #8  
chucknmesa's Avatar
chucknmesa
Thread Starter
|
Freshman User
Joined: Jul 2006
Posts: 37
Likes: 0
I do use 5-40 oil.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

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

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Dec 1, 2012 | 02:41 PM
  #9  
nonyabiztoo's Avatar
nonyabiztoo
Cross-Country
Joined: Jan 2009
Posts: 57
Likes: 1
From: Coarsegold, Ca
I agree with Crazy 001, sounds like stiction to me.
 
Reply
Old Dec 1, 2012 | 02:44 PM
  #10  
BLADE35's Avatar
BLADE35
Hotshot
15 Year Member
Liked
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
You need a New thermostat to that Arizona Heat Weaked the Spring


And you have Other Issues Search the Site for a Gauge Setup
 
Reply
Old Dec 1, 2012 | 02:50 PM
  #11  
BLADE35's Avatar
BLADE35
Hotshot
15 Year Member
Liked
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
Start with Batterys Alternator and FICM

You have a Problem

I dont even Plug in and Can Take off in 10 minutes and Be OK No Miss at Like 32*f

It Not GP cause you dont Complain about the start

30 minutes and still have a Mis is a Problem
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JeffMcMahon
1999 - 2016 Super Duty
1
Mar 4, 2018 09:05 PM
bgab3
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
6
Jan 5, 2013 08:17 PM
BigTires
1999 - 2003 7.3L Power Stroke Diesel
2
Dec 2, 2010 07:03 AM
Dead Meat
1987 - 1996 F150 & Larger F-Series Trucks
47
Mar 11, 2010 11:24 PM
Kid 67y
1983 - 2012 Ranger & B-Series
9
Apr 4, 2007 05:05 PM




All times are GMT -5. The time now is 02:14 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