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Old 11-06-2012, 08:36 PM
hyksos hyksos is offline
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Location: Montreal
 
Join Date: Apr 2011
Posts: 47
Mein Auto: BMW X3 3.0si 2007
Oh, I forgot to update this thread.

My problem was the radiator fan ..... it was not working anymore, I found it the hard way in the traffic, my engine temperature increased dramatically when I was not moving.

I know it sound very strange that the 2 problem can be related, but they changed the fan under warranty, they did absolutely nothing else and my power loss problem was gone... it's been more then a year now and I never had the problem once...

What is strange is that when I had power loss, the engine was not overheating, my theory is that the engine might have some protection circuity that detect fast temperature increase or something like that, that cut power to the engine to protect it.... I really don't see anything else that can explain that
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