Code PO12F - Ford Powerstroke Diesel Forum
6.0L Problems Forum Having Trouble? Post here

User Tag List

LinkBack Thread Tools Display Modes
post #1 of 2 Old 08-20-2011, 08:56 AM Thread Starter Rookie
Join Date: Jul 2010
Location: pensacola
Posts: 23
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Code PO12F

Let me run this by yall. 05 250. Oil cooler has 2500 miles on. It was put in by Ford Dealer in AL. When they did the Oil cooler they did not replace the EGR cooler. I was pulling a tractor it was only 5000 lbs. Nothing for the truck to pull. The truck said high temp on the dash display but the temp gauge was normal. Dropped off the trailer and the truck was fine. The servise engine light came on later. The code that popped up was PO12F. Coolant looked like muddy water. I know what the code means just looking for more imput .
poptop is offline  
Sponsored Links
post #2 of 2 Old 08-20-2011, 09:19 AM
information regurgitator
NYC F-350's Avatar
Join Date: Dec 2010
Location: Epping, NH
Posts: 6,140
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Thanks: 25
Thanked 227 Times in 209 Posts
Feedback Score: 0 reviews
Since you already know that the P012F code is the coolant/oil temp correlation code, then you know what you have to do.
First is to do the two chemical flushes to thoroughly clean the cooling system, then replace the oil and EGR coolers (or delete it, your choice).
Finally, refill the cooling system with a CAT EC-1 rated ELC coolant. You will need 4 gallons of the concentrated form of coolant, no 50/50 mix since half of the cooling system capacity is retained by the block, even if you pull the block drains.
NYC F-350 is offline  
Sponsored Links

Quick Reply

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


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

Email Address:


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