Need a Smart Guy help with the DEF - Ford Powerstroke Diesel Forum
General 6.7 Discussion General 6.7 Discussion

 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 03-20-2010, 04:04 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Mar 2010
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Need a Smart Guy help with the DEF

Ok I understand that the DEF freezes around 12 degrees and that the truck has line and tank heaters that work with the key on. Here is my Question, I live in Alaska and the outside temperature is below 12 degrees for 3 months straight during a warm winter, so will the truck start and run long enough for the DEF to thaw?
2011F350SD is offline  
post #2 of 9 Old 03-20-2010, 04:08 PM
shaking things up

 
jethro's Avatar
 
Join Date: Jan 2009
Location: wexford-Pa
Posts: 3,650
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
just wait till the tunes and deletes come out and get rid of that crap

389.14 HP 726.00 TQ
96 f-350 7.3 with a 5 speed
3 in DP
4 in ex. to 5 in aussies
custom traction bars
TW chip 6 pos
IDM mod
SD IC
HPX
D66
casserly 2's
custom fuel with an AIRDOG 2
910's
*17 TE modded hpop
ebpv gutted
pedestal gutted
gutted ccv elbow
clutch pedal fix

facebook- Graham Maxwell
jethro is offline  
post #3 of 9 Old 03-20-2010, 04:25 PM
Compression Ignition Addict
 
late_99_PSD's Avatar
 
Join Date: Oct 2009
Location: Taneytown, Maryland
Posts: 3,293
Thanks: 2
Thanked 11 Times in 11 Posts
Mentioned: 0 Post(s)
Quoted: 10 Post(s)
Feedback Score: 0 reviews
I'm 90% sure that the truck has to run for someting like 30 min, or X amount of miles before it starts using DEF, so it will have plenty of time to thaw.

Allen
1999.5 F-350 7.3, six-speed

late_99_PSD is offline  
post #4 of 9 Old 03-20-2010, 04:45 PM
Powerstroke.org Fanatic
 
Join Date: Feb 2010
Posts: 93
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
def

There is a winter DEF go to -20F
bigbuckmiddaugh is offline  
post #5 of 9 Old 03-20-2010, 07:34 PM
Powerstroke.org Rookie
 
Join Date: Mar 2010
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
DEF is for reducing NOx emission, and NOx formation is very, very temperature dependent. A little hotter makes a LOT more NOx. So I guess it's reasonable that the truck might not need to use any DEF unless and until it's warmed up.

I wonder what they do to keep the freeze/thaw cycles from destroying the tank though.

'02 Silverado 2500
Duramax 6 spd ZF, 4x4
crew cab, long bed
npauli is offline  
post #6 of 9 Old 03-21-2010, 05:28 AM
Powerstroke.org Fanatic
 
Join Date: Feb 2010
Posts: 93
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
def

If it does freeze thaw. i wonder if they used a bladder like system.
bigbuckmiddaugh is offline  
post #7 of 9 Old 03-21-2010, 07:54 AM
Member
 
Join Date: Jan 2010
Posts: 86
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I'm not worried about the DEF, Ford has tested it in cold weather. Can't wait for the tuners to get a hold of this.
jimchris is offline  
post #8 of 9 Old 03-25-2010, 05:00 AM
Powerstroke Techie

 
Join Date: Oct 2009
Posts: 1,682
Thanks: 0
Thanked 5 Times in 5 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Don't worry about it freezing. There is a tank heater, and line heater as well. The lines are emptied when you shut the key off.

Ford Senior Diesel Technician
2008 F-350 4x4 Off Road 6.4 Powerstroke Diesel
There are strange things done 'neath the midnight sun by the men who moil for gold.
The arctic trails have their secret tales that would make your blood run cold.
Big Angry Hillbilly is offline  
post #9 of 9 Old 03-25-2010, 06:38 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Mar 2010
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Like I stated in the first post i Understand about the line and tank heaters but they only work when the key is on, and all the testing in the cold was done to the trucks with them running 24/7, if the truck sits for 8-12 hours at night in sub zero temps it will take the tank some time to thaw. What I want to know: is there enough time from when the tank is fully frozen untill thaw to drive the truck with out an idiot light or other issues.
2011F350SD is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome