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General => The garage => Topic started by: rikmayall on 08 April 2011, 19:23

Title: A real growling (loss of speed too maybe) when I accelerate?
Post by: rikmayall on 08 April 2011, 19:23

I have discovered a real growl/rattle from my Golf TDI MK4 when I accelerate the harder/faster I accelerate/put my foot on the accelerator, the louder the noise. It comes and goes, lasts for about 5 mins then it stops again and maybe would come on 5 mins later, so very inconsistent - tried my best to remember what I was doing or if I was driving a certain way, but nothing different, seems very random.

• It doesn't happen when I am freewheeling, or using the engine to slow down or anything.
  
  I don't think its anything to do with the heat from the engine as it can be at the start/end of a journey.
  
  I was told it could be a hole in the exhaust, but if it was that, surely it would be constant?
  
  I think I have lost a little 'kick' of acceleration when the growling comes, but I'm not so sure.
  

Anyone have any suggestions?

I have hosted and given links of audio clips of the sound it makes (normal and when 'growling', the phone is on the floor of the car, on the same place both times). Hope it triggers something somewhere amongst you. Cheers.

http://myspacefilehosting.com/lmxgj/Normal.mp3.html (http://myspacefilehosting.com/lmxgj/Normal.mp3.html)

http://myspacefilehosting.com/lmxgk/Growling.mp3.html (http://myspacefilehosting.com/lmxgk/Growling.mp3.html)

Title: Re: A real growling (loss of speed too maybe) when I accelerate?
Post by: Wayne on 08 April 2011, 23:45

Flywheel issue maybe.