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S80 MK1 over heating

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Old Jul 9, 2021 | 04:04 PM
  #1  
Glencmp's Avatar
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From: Durham
Default S80 MK1 over heating

Hi there, I need to pull in the big guns for this.
It’s an S80 2006 MK1 runs like a little clock but for only one thing.
The Radiator fan isn’t turning fast enough!
So the fan runs turns on a slow speed but if you are climbing a hill, or it’s a hot day the temp will climb, I don’t let it go above 95 degrees. I turn the heater to hot and let it cool down. You never hear the fan at full speed but the fan turns freely.
Any ideas what it might be?
I’ve have a timing belt and water pump change along with the antifreeze but it was doing this before that.
It’s like the fan isn’t turning fast enough, like it’s on a low setting but the high setting doesn’t kick in if that makes sense.
Always grateful for any help
Thanks Glen
 
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Old Jul 9, 2021 | 05:55 PM
  #2  
hoonk's Avatar
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From: GA
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Bad fan controller - A compatible scan tool would be able to test the various fan speed for you.

What engine do yo have?
 
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Old Jul 11, 2021 | 04:50 AM
  #3  
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It’s the D5, but not too sure of the specifics.
id got the AA in to check and replace the battery and they didn’t pick up any error codes. Would it have shown up or would you need to hunt for the error code?
 
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