2003 Ford Escort, PO125 code

by Norine
(Pittsburgh, PA USA)

Friend's car .... she took in for an oil change. They checked air filter, coolant level, etc. Right afterwards the Check Engine light came on. She took car back (they must have disconnected the battery to reset the computer) and CE was off. A few days later back on. She took the car to a local parts store - put on analyzer - code PO125.

Thermostat stuck open? Temperature sensor? What is best approach as she does not have the funds to replace one to find out it is the other....

Thanks for your help and I will definitely put you in my Favorites. It is nice to know there is someone out there willing to help.

Norine

Steve Says,

Thanks for using my website. The first thing that I would do is take the car back to the place that did the oil change. It sounds like they must have either left a connector unhooked or maybe bumped it and caused it to break.

That is the most likely cause of the problem. Hopefully they will be helpful. If they are not then your friend needs to find another place to have her oil changed. Be sure to let them know that you will be telling all of your friends to not go there if they are not helpful.

The good thing is that she can drive her car like this if she needs to. It is not causing any problems, but she does need to get it fixed because the car could overheat without her knowing.

I hope this has helped.