Another temp delta thread....... - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-16-2012, 06:28 PM
Compression Ignition Addict
 

Join Date: Nov 2009
Location: Norwalk, CT
Posts: 788
Thanks: 6
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
Another temp delta thread.......

Found a few threads that seem to match my symptoms.

I installed a new oil cooler 2.5yrs ago.
I have been running Rotella EC1 for about 1.5yrs.
Flushed with Restore before the switch.
I think my one year of MC Gold is catching up to me.
I change my coolant filter every other oil change as well.

Similar thread:
Normal Range for a 6.0's deltas

Around town, I cant really get my temps above 190*, EOT or ECT.
On the highway (did a 120 mile round trip yesterday), unloaded besides some tools in the bed, 60* ambient, my ECT would fluctuate 178-184*.
EOT stayed damn steady at 192-194.
Most of the highway run was pretty flat, a few minor hills, and didnt romp on it at all. Stayed right around 65-70mph the whole trip.
Shortly after the highway run, EOT drops within 5* of the ECT.

Not so sure I have an issue?
Opinions?

I finally got that bucking issue fixed with the intermittently sticky IPR, and now this........
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 10-16-2012, 11:15 PM
Banned
 

Join Date: Oct 2011
Location: Carrollton Ohio
Posts: 8,839
Thanks: 65
Thanked 58 Times in 40 Posts
Feedback Score: 10 reviews
Replace your thermostat it sounds like it failed open. You should easily be able to get ECT up to atleast 192*.
Reply With Quote Quick reply to this message
  #3  
Old 10-17-2012, 03:52 AM
Compression Ignition Addict
 

Join Date: Jul 2012
Posts: 158
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
What he said. Sounds like the t-stat is staying open. Mine does the same thing. I have one here just need to stop being lazy and put it in lol
Reply With Quote Quick reply to this message
  #4  
Old 10-17-2012, 04:32 AM
Compression Ignition Addict
 

Join Date: Jun 2008
Location: Brewster, NY
Posts: 1,180
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The ECT temperatures are too low. If you were seeing maximum of 184 ECT and 194 EOT, there is reason for concern. While officially your ECT needs to be 190 for an accurate test, I would anticipate the EOT climbing as well once you raise the ECT.

If it were me, I would plan on changing the coolant with fresh ELC when changing the thermostat and in the process reverse flush the oil cooler hoping to dislodge enough to put you back into a comfortable range. If you'd like, you can borrow my oil cooler reverse flush adapter.
Reply With Quote Quick reply to this message
  #5  
Old 10-17-2012, 06:37 AM
Compression Ignition Addict
 

Join Date: Nov 2011
Location: Concord, NC
Posts: 1,035
Thanks: 0
Thanked 15 Times in 13 Posts
Feedback Score: 0 reviews
Replace thermostat with OEM then retest.
Reply With Quote Quick reply to this message
  #6  
Old 10-25-2012, 06:17 PM
Compression Ignition Addict
 

Join Date: Nov 2009
Location: Norwalk, CT
Posts: 788
Thanks: 6
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
Motorcraft thermostat replacement installed.
My delta is now less than 3*.

I did some around town driving today with a couple short highway runs, less than 2 miles.
ECT never went above 193*, EOT stayed pretty much solid at 192* all day.
I even had to tow a 32' Intrepid with twin 250's across town, they both stuck within 3* the whole time.

The thermostat I pulled out was a different design. Not sure what brand it was, but it was noticeabley different. Different size springs, disc, etc.
Reply With Quote Quick reply to this message
  #7  
Old 10-25-2012, 06:18 PM
Compression Ignition Addict
 

Join Date: Nov 2009
Location: Norwalk, CT
Posts: 788
Thanks: 6
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
Motorcraft thermostat replacement installed.
My delta is now less than 3*.

I did some around town driving today with a couple short highway runs, less than 2 miles.
ECT never went above 193*, EOT stayed pretty much solid at 192* all day.
I even had to tow a 32' Intrepid with twin 250's across town, they both stuck within 3* the whole time.

The thermostat I pulled out was a different design. Not sure what brand it was, but it was noticeabley different. Different size springs, disc, etc.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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
Display Modes

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



All times are GMT -8. The time now is 02:51 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors