6.4 oil temp problems - Ford Powerstroke Diesel Forum
6.4L Problems Forum Having Trouble? Post here

 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 07-05-2013, 04:39 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2013
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
6.4 oil temp problems

I have an 08 6.4 with 105,000 miles and the other day after 45 min of combined city and highway driving my EOT hit 230 while the ECT still 190. I had no load the outside temp was mid 80s and i had the ac going. I took the truck to ford thinking the oil cooler had gone bad. They called me a couple days later saying 230 is ok for EOT and hot is considered 260. From what I have found the EOT and ECT should be within 4 degrees of each other. Obviously there is a problem but I am at a loss what to do. Any help would be greatly appreciated!
NoJokePowerstroke is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 07-05-2013, 04:46 PM
Dont Mess With Texas!


 
ThirdCoastStroker's Avatar
 
Join Date: Apr 2010
Location: Corpus Christi TX
Posts: 5,724
Thanks: 2
Thanked 2 Times in 2 Posts
Mentioned: 1 Post(s)
Quoted: 14 Post(s)
Feedback Score: 0 reviews
How are you monitoring your temps? what mods do you have on the truck? Def. sounds like a plugged oil cooler with those kind of deltas. I had a plugged up oil cooler and pulling my fifth wheel (10k pounds) I was seeing those kind of deltas.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Casey

New Truck
15' F-350 King Ranch 4x4 CCLB
Platinum White / Caribou Metallic
Stock for now!

Old Truck
08' F-350 King Ranch 4x4 CCSB
H&S Mini Maxx 300 HD
5" Straight Pipe to 7" rolled tip
AFE S2 PDS
ARP Head Studs
FloPro EGR Delete with Intake Elbow
FloPro CAC pipe
Rebuilt beefed up OEM Up pipes
Deisel Site Coolant Filter
Firestone RideRite Airbags
Leveled
35X12.50R20 ProComp Xtreme A/T
Ranch Hand Front and Rear Replacement Bumpers
ThirdCoastStroker is offline  
post #3 of 9 Old 07-05-2013, 06:49 PM
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
Sounds like the diesel guy at that dealer is dumber than a box of ****.

Took them two days to diag it?

15-25 degrees MAX delta. And 25 is the high end, with high ambient temperatures, and load.

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 #4 of 9 Old 07-05-2013, 06:51 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2013
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
The truck has a 5 inch straight pipe with cat and Dpf delete. An s and b intake and a spartan 250 tune. I was using the dash daq to monitor EOT and ECT.
NoJokePowerstroke is offline  
post #5 of 9 Old 07-06-2013, 03:04 AM
Member
 
Join Date: Aug 2012
Location: Orlando suburb
Posts: 69
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
It sounds like the oil cooler. I had the same thing happen to my rig. I ended up installing the bulletproof diesel 6.4l half kit on and it works great. I heard to many horror stories of people replacing their oil coolers more than one time with their trucks.
Bullet Proof Oil Cooler System, 2008-2010 F-Series, 6.4L Half-Kit
kmack08 is offline  
post #6 of 9 Old 07-07-2013, 01:12 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2013
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks for the help! I am gonna try the half kit and hope that works.
NoJokePowerstroke is offline  
post #7 of 9 Old 07-09-2013, 05:07 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2013
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
So I picked up the truck from ford after they charged me $150 to do nothing and they gave me a copy of an e mail they received from ford hotline assistance about oil temps.

"If there was a concern with high EOT the PCM should set a P012F DTC. The difference between the EOT and the ECT will vary depending on the ECT, air temp and engine load. The difference of 15 degrees is not valid for the 6.4, the 15 degree difference between the EOT and ECT was used on the 6.0 engine. Since there is no P012F DTC present it is not supected that there is a concern present. Once the EOT reached 259*F the PCM will derate engine power without setting a DTC, and it is normal for the EOT to be higher than the ECT because the coolant cools the oil."

Any thought on this...?
NoJokePowerstroke is offline  
post #8 of 9 Old 07-16-2013, 03:01 AM
Member
 
Join Date: Aug 2012
Location: Orlando suburb
Posts: 69
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Did you install the half kit yet?
kmack08 is offline  
post #9 of 9 Old 07-19-2013, 12:29 PM
Premium Member
 
Join Date: Jun 2013
Posts: 403
Thanks: 44
Thanked 9 Times in 8 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
230 okay? Maybe pulling a double wide through CO.

15 degree is valid, and any EOT over 225 is not good.

Have you tried tuning down for awhile (spartan 250 tune)?

Any reason why you need to keep it tuned so high?

I agree the 1/2 kit will solve the heating unless you have a plug.

I hit 221 in 104 degree weather in Texas last week while in reGen mode, but I was going 85 with 1K of weight in the bed. LOL, I was running for the border. (J/k)

Threw the old P2002. I was so happy..
GSchretter is offline  
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:
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