'08 f350 6.4 obd code P00B7 - Diesel Forum - TheDieselStop.com
2008- 2010 General Questions General questions related to 2008-Up Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 05-16-2012, 09:09 PM Thread Starter
Junior Member
Join Date: May 2012
Location: virginia beach
Posts: 5
Feedback Score: 0 reviews
'08 f350 6.4 obd code P00B7

hello, i'm new to the diesel world and to TDS. i picked up a used '08 f350 lariet w/70k miles about 7 months ago. very nice ride, wife loves it, about a month ago it tripped a "wrench" and "reduced power". my part time job has a obd 2 scaner so we ran it and the code is P00B7, if i reset it the code will return. the scaner or shop computer however, states this is not a valid code. the fault happens about 30 min of driving and i lose cruise control function. everything works fine if the truck is turned off and sits for a few minutes, but it starts all over after 30 min. before 2008 the code was for low coolant flow so i topped off the antifreez with no luck. has anybody seen this or am i the lucky one.
achips is offline  
Sponsored Links
post #2 of 5 (permalink) Old 05-16-2012, 10:51 PM
Senior Member
Join Date: May 2010
Location: Arizona
Posts: 316
Feedback Score: 0 reviews
Plug it into a google search. Apparently it means 'engine coolant flow low/performance'.

Oops...looks like you already found it...never mind...

2008 Ford F250 6.4l PSD Lariat Super Cab, Long Bed
2006 Jayco Jay Flight 27.5 RLS Fifth Wheel

Last edited by zedd; 05-16-2012 at 10:54 PM.
zedd is online now  
post #3 of 5 (permalink) Old 05-17-2012, 06:40 PM Thread Starter
Junior Member
Join Date: May 2012
Location: virginia beach
Posts: 5
Feedback Score: 0 reviews
i went to google and found a post from 07-23-2011, H2Oman. he had to replace both thermostats to fix the problem. he also noted some helpful info about the water temp and trans temp gauges, mine are the same way. i will be looking into the t-stats next week. thanks for the help zedd. will up date when the thermonstats are replaced. also, how do i find out if the computer has been updated?
achips is offline  
post #4 of 5 (permalink) Old 05-17-2012, 09:46 PM
Senior Member
senix's Avatar
Join Date: Jul 2009
Location: maryland
Posts: 4,742
Feedback Score: 0 reviews
Yup..for did a software update 11B23. That enabled it to read the code. It is a warranty item so let it throw the code and take it in to have the thermostats replaced.

Verify warranty beforehand though as some of the 08's are coming out of warranty now.

08F250 CC 6.4 PSD
Banks 6 gun/ram air
40' Stoneridge 5th wheel, coming in at 15.4K.
senix is offline  
post #5 of 5 (permalink) Old 07-26-2012, 11:01 AM Thread Starter
Junior Member
Join Date: May 2012
Location: virginia beach
Posts: 5
Feedback Score: 0 reviews
it took some time but we took our truck in last week. told them that "after about 20-30 min of driving we get the reduced power and the P00B7 code for low/poor coolant flow, and we have a small coolant leak". i also told them about the TSB's that cover this. two days later we get a call telling us that a heater hose is leaking and that the system needs flush and fill??? so a week later we pick it up and on the 30 min drive home, you guessed it, it fails. stop in to my 2nd job run a scan while the truck is running and P00B7 shows up in memory. my wife takes it back the same day, talks to the servmgr recaps everything, asks why they did not test drive the truck, only 1 mile put on after the first drop off, no one can tell her why. so they have it again, waiting to see what the fix is and how long it will take then to read the TSB for it.
achips is offline  
Sponsored Links

  Diesel Forum - TheDieselStop.com > 2008-2010 Ford Super Duties > 2008- 2010 General Questions
Gear in this thread - Powered by O'Reilly Auto Parts

Quick Reply

Register Now

In order to be able to post messages on the Diesel Forum - TheDieselStop.com 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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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