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Old 06-29-2008, 12:34 PM
brandlj brandlj is offline
1986 300sdl 1985 380se
 
Join Date: Aug 2005
Location: West Monroe LA
Posts: 484
Quote:
Originally Posted by Brian Carlton View Post
Then, something is amiss. The fan should never run at high speed until the coolant reaches 105C.

Most of us have never heard the fan at high speed.............I certainly have not.
You Are absolutely correct!!!! What I am hearing (actually sensing it coming on ) is the low speed aux fan. I went out to test this yesterday. The low speed fan will come on and I can see my needles jump a little when it does. I guess it is just a little more draw on the electrical system.

I tested my high speed fan and it does work, but it never has come on by itself.

Thanks for helping me clarify this.
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John
1986 300sdl
1985 380se
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