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      01-27-2013, 12:48 PM   #4
Sindarin
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Drives: 135i
Join Date: Jul 2012
Location: USA

Posts: 45
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Quote:
Originally Posted by Ihave1 View Post
Does anyone else have a strange grunting noise when the fan first spins up? I bought a used fan and installed it today and both my old fan and the replacement make the same noise. I could just have got unlucky twice, but that seems unlikely. On hot days inside the car it sounds like someone farting in a bathtub when it spins up.
I've replaced aux fans for making this noise, always fixed it. This was with a new part though.
Quote:
Originally Posted by Dmacc View Post
You should go with the 1M fan!
Not without the additional wiring and relay. The higher output fan draws more current and there would be the possibility of an electrical fire if you connected it to the stock wiring.The higher output fan is part of the PPK2 which includes everything you need to install it.
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