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· Registered
8 Posts
Discussion Starter · #1 ·
Hi all,

I overheated one day, I thought it was the thermostat, I bought a new one, put it in and the car worked fine for a few weeks, I thought my problem was solved.

Then it happened again, so I got another thermostat, but this didn't fix my problem. Looked at the fuses and realized that I had blown my #5 fuse (40A) for the radiator fan.

I replaced the fuse, drove a little (day or so) and it blew again.

I then flushed the coolant, put in a 3rd brand new thermostat and replaced ALL my fuses (I bought a bag of fifty 40A fuses from Amazon because why not).

I'm assuming that I have a short somewhere? Has anyone had this issue? What was the fix? I'm guessing it's not my thermostat at this point, right? I'd outright replace the fan but I'm worried that the actual power line to the fan might have a short in it.

I'm open to all suggestions.

· Administrator
2,424 Posts
Fan motor seized is the likely cause of the blowing fuse. If it is also the cause of the overheat is a different question though. Mine runs fine without thar electric fan coming on BUT my a/c is not charged. Fan is mounted in front of the rad and coolers (closer to the grille)

· '03 Disco SE
573 Posts
Does it overheat only when you're using AC or pretty much all the time?

The reason that I ask is because the electric fan (if the AC's off) will only run when the engine temps reach 212F, and from my experience, you shouldn't be reaching these temperatures under normal driving conditions. I've had my fan automatically kick on at those temperatures only once, and that was when I spent 20 minutes trying to free myself from a mudhole.

I'd look at other causes for the overheat. Maybe a clogged radiator or a failed fan clutch - maybe even a dodgy expansion tank cap. At any rate, stop driving it until you figure out what's wrong. One too many overheats and your engine could be toast.
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