strange buzzing noise

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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modified406
2.0 Turbo
Posts: 273
Joined: Wed Jun 30, 2010 12:34 pm
Location: glasgow

strange buzzing noise

Post by modified406 »

hi guys i have a hdi 110 x reg and when the cars started theres a strange buzzing noise but i can feel it vibrate through the brake pedal and clutch pedal i can clearly hear it any ideas what this could be
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Captain Jack
3.0 24v
Posts: 3820
Joined: Sun Aug 07, 2005 11:26 am
Location: Langford, Somerset

Re: strange buzzing noise

Post by Captain Jack »

My car is full of strange buzzing noises - I just ignore them until something actually dies...
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp :twisted:)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
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Doggy
Mod with a 2.2 HDi, De-Fapped!
Posts: 10710
Joined: Mon Oct 13, 2008 11:49 pm
Location: Northants

Re: strange buzzing noise

Post by Doggy »

If it's come on all of a sudden, check for signs of dual mass crank pulley failure, (rust / swarf in the general area).
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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mjb
Site Admin
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Joined: Wed May 31, 2006 9:06 pm
Location: Stoke

Re: strange buzzing noise

Post by mjb »

You say "when the car's started"... Do you mean:

a) When the ignition is turned on? This will be the recirc flap and the vent selector mechanism starting up and working out where it is
b) When the engine's started? Could just be a bit of cold running vibration mixed with a worn engine mount
c) When the engine's running? Could be a hydraulic problem - when was the brake fluid last changed (including the clutch bled)? Could also be the DMF or clutch having issues - what other things affect the level/speed of vibration?
<steve_earwig> I think this forum is more about keeping our cars going with minimal outlay than giving our cars more reason to go bang
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