Hello Mr.Kilmer,
My truck's check engine light came up, ran a diagnose and it showed the P0125 code. I was told it's either the ECT sensor needs to be checked or replaced or replace the whole theromostat. Although, I was told it's still ok to drive the truck too, but I'll have a bad gas mileage by a little bit. I'm planning on getting it fixed, but is it ok to drive it even for long drive like 4 hours (will happen only twice)?
Best regards,
Mohammed Alrashed.
Forgot to mention there's no coolant leak under the truck and no leaking on the theromstat as well.
Clarification: Year, Make, Model, Mileage?
2002 Ford Explorer Sport Trac with the 4.0L V6.
One final thing I'll add is there's no engine overheating, it stayed at quarter as usual or any other issues I noticed during my today's drive.
Well what does your temperature gauge say if it shows incorrect temperature and slow but it does show temperature you need a new thermostat. If it doesn't show temperature at all then the sensor or wiring would be bad
