coolant sensor problem - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 05-20-2012, 04:30 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2012
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
coolant sensor problem

i am working out the gremlins I inherited in a 2000 f350 7.3. 110,000 miles automatic tranny.


With the genisys scan tool the coolant temp is reading -40 degrees although the gauge on the dash shows the sensor working properly. I also shot the engine with a temp gun at operating temp. and it was in the 180 range.

So I think the sensor on the front of the engine tells the gauge on the dash whats going on, Does anyone know what tells the computer what is going on? I think if I find that info I will find out why I get the false reading from the scan tool.

I just did a quick search and found that the pcm doesn't mointor the engine coolant temp on the automatic transmission. Is the good info?

Last edited by tackman331; 05-20-2012 at 04:42 AM.
tackman331 is offline  
post #2 of 3 Old 05-20-2012, 05:56 AM
Compression Ignition Addict
 
Join Date: Dec 2007
Posts: 6,320
Thanks: 7
Thanked 253 Times in 244 Posts
Mentioned: 6 Post(s)
Quoted: 101 Post(s)
Feedback Score: 3 reviews
We've known for sometime that the coolant temp reported to scanners is not accurate. Here's what the AE forums say about it.

"They confirmed that the pinout is there and AE sees it but the 7.3 application does not use this pinout so it floats - the result is that we see bogus information. Just ignore it, it's a result of Ford using the same hardware for multiple applications."
NoRalPh is online now  
post #3 of 3 Old 05-20-2012, 06:32 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2012
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thats good to know, as this is my first diesel, I'm learning a whole lot of info real fast! lol
tackman331 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