Expedition Overheating Speed Sensor

My 2003 Ford Expedition with a gasoline engine is overheating, and the check engine light is on. It's only done 46390 km. I suspect it's the radiator fan or a thermal switch. Any ideas?

4 comment(s)

I had a similar problem with my Expedition some time ago. Check the speed sensor; a defective one can cause the fan motor not to kick in when it should.

Interesting, I wouldn't have thought of that. Where is the speed sensor located, and is it hard to replace? Is there a way I can rule out the fan blade?

It's near the wheel hub, but honestly, diagnosing electrical issues can be tricky. Given the overheating, I'd recommend taking it to a workshop.

Thanks! I took your advice and had a mechanic look at it. Turns out it was indeed the speed sensor. Cost me about 250€ to get it fixed. Appreciate the help!

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