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Engine compartment fan problem

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Dear Loren ,Iam the owner Boxster s '05 and i have the same problem (believe it or not) with the member 'dog4delta'. My engine compartment fan runs at a low speed whenever the engine is running. However,it's not running at full power the way it does when it comes on when the engine is hot.When i disconnect the temp sensor the fun runsat high speed.What's your opinion about it. Is this happen only to my boxster s? Thanks for any help. Greetings from Greece!

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  • 1 year later...

I have a boxster 2005 (25 k) which is giving a similar problem. In my case it seems to be running at low speed, but after running my car for about an hour at low speed and in traffic I get an warning, that says failure of engine compartment fan. After I stop the car the message warning dissapears. Is this fan the auxiliary fan? Any help will be appreciated.

Greetings from Mexico.

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Yes, the engine compartment purge fan should only come on when the engine compartment air temperature exceeds certain levels.

If you are getting a warning then you need to check the fault code(s).

In many cases the thermal sensor has fallen out of it's holder and is laying on hot engine parts giving a false reading.

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