Ford Focus Coolant Sensor

The coolant was a 1/2″ below the min. line, so I added enough to bring it up. I haven’t gone for a test drive to see if that takes care of it yet. In the event that it wasn’t just low on coolant, where is the coolant sensor located? (By the way, I work with Leslie, and she gave me your web address! Unfortunately, it was after I complained about my shop bill. The water pump had froze up, and then the fuel pump went out. All one after another!) Thank you for the tips and quick response!”

Some of those Focuses have hydraulic fans, and that could be the problem. they are VERY complex. BUT, if you have an electrical cooling fan, the most common problem in that model is actually a bad fan relay. It snaps in above the fan housing, and its kinda, a square piece of plastic with a metal shroud around it and a plug going into it. I’d check that relay first as they go bad all the time. Ford dealers stock tons of them. Then sensor itself is by the thermostat and bolts on there, but they really don’t go bad that often from my experience.