Quote:
Originally Posted by bobthecabbage
if you have been driving, especially at speed, then you have gone from a situation of high air flow, high coolant and oil flow to suddenly zero of all of these. Therefore all the heat in the hottest part of the engine will transfer to the cooler parts and the coolant, so parts of the engine will get hotter after you stop! As will the engine bay.
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Quite agree. It wouldn't trigger a rheostat installed in a the radiator, but ...
Quote:
Originally Posted by bobthecabbage
I don't know where the temp sensor is for the radiator fan but they are often no longer on the radiator as they commonly were. If its on the engine then it could well trigger after engine shut off.
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Now that you mention it - you're quite right. There isn't one on the radiator. So where is it then?
I took a look through the wiring diagrams in the Haynes manual. There are two types listed; Fenix 5.1 and EMS2000. The latter type uses two relays so the fan can operate at two speeds. The former has only one. But in both cases they are operated by the fuel injection system.
So there we are, that's solved then. The fan comes on when the computer says so it'll be the computer making incorrect decisions. Which either means it's damaged, or it's getting bad information from a sensor.
Somebody mentioned MAF?
Quote:
Originally Posted by bobthecabbage
It would not hurt to check or just replace the coolant temperature sensor. They do fail ... <lots more good stuff snipped for brevity>
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Yes, and that one.