Got a code PO125 today? - Ford Truck Enthusiasts Forums



Got a code PO125 today?

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 02-05-2007, 09:49 PM
Fredster Fredster is offline
Freshman User
Thread Starter
 
Join Date: Apr 2003
Posts: 36
Fredster is starting off with a positive reputation.
Got a code PO125 today?

I have a 2000 F-150 5.4L. Got a code Po125 today. Eng. service light is on.
Autozone says it means the pcm has determined that the amount of time it took for the coolant temperture sensor to reach an input value consistent with closed loop operation was to excessive. Can anyone tell me what to check for?
Reply With Quote
  #2  
Old 02-06-2007, 12:17 AM
LxMan1's Avatar
LxMan1 LxMan1 is offline
Moderator
 
Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,378
LxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant future
It means the engine isn't warming up fast enough. Either the thermostat isn't closing completely or the temp sensor is bad.
Reply With Quote
  #3  
Old 02-06-2007, 07:37 AM
Fredster Fredster is offline
Freshman User
Thread Starter
 
Join Date: Apr 2003
Posts: 36
Fredster is starting off with a positive reputation.
Where is the temp. sensor on a 5.4? I could not find it.
Reply With Quote
  #4  
Old 02-06-2007, 08:18 AM
LxMan1's Avatar
LxMan1 LxMan1 is offline
Moderator
 
Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,378
LxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant future
There is one sensor on the drivers side head in front of the #5 intake port. I'm not sure if this one measures coolant temp or the head temp for the gauge.
Reply With Quote
  #5  
Old 02-07-2007, 07:44 AM
Fredster Fredster is offline
Freshman User
Thread Starter
 
Join Date: Apr 2003
Posts: 36
Fredster is starting off with a positive reputation.
I cleared the code without doing anything. So far it hasn't came back.
Reply With Quote
  #6  
Old 02-07-2007, 08:12 AM
LxMan1's Avatar
LxMan1 LxMan1 is offline
Moderator
 
Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,378
LxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant future
Perhaps the thermostat stuck open one time. Might not be a bad idea to change it just to be sure it doesn't stick again if it did. Sticking closed would be worse that sticking open.
Reply With Quote
  #7  
Old 02-07-2007, 08:18 AM
projectSHO89 projectSHO89 is offline
Post Fiend
 
Join Date: Jan 2004
Location: St Louis
Posts: 12,680
projectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant futureprojectSHO89 has a brilliant future
Time for a new thermostat. Replace it now before it causes further problems of a more serious nature.

Steve
Reply With Quote
  #8  
Old 02-07-2007, 08:05 PM
Fredster Fredster is offline
Freshman User
Thread Starter
 
Join Date: Apr 2003
Posts: 36
Fredster is starting off with a positive reputation.
I plan on flushing the cooling sys. soon anyway. I will change the thermostat at the same time. Thanks
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
code po125 other issues that are involved 7240powerstroke 1997 - 2003 F150 1 02-22-2015 03:42 PM
2002 f150 has po125code 4.6 engine James Nelson 1997 - 2003 F150 1 12-20-2014 01:03 PM
Po304 po308 FFEMT32 Modular V10 (6.8l) 2 05-10-2013 07:31 AM
check engine codes silver05fx4 2004 - 2008 F150 4 09-01-2008 02:25 PM
PCM error code PO603 "Help!" case2273 1994.5 - 1997 7.3L Power Stroke Diesel 1 07-17-2006 06:40 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
02, 125, 2000, 54, check, code, codes, engine, f150, ford, fseries, mustang, po, po125, trouble

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 05:51 AM.