Re: [doc] Buzzing noise!

["Stian Birkeland" <delorean@xxxxxxxxx>]

The buzzing noise is VERY LOUD (coming from the engine compartment)
Really, its kind of a scary(!) sound...

I have heard the sound when working on the car (engine off, key 2, 
doors up, engine lid up. It doesn't sound right...

Would this go away if I changed either the COIL (original-20 years 
old) or the idlespeed motor?

Best wishes
Stian




--- In doc-uk@xxxxxxxxxxxxxxx, Martin Gutkowski <webmaster@xxxx> 
wrote:
> Frequency valve. Comes on at same time as your fuel pump, often for 
a 
> second or two after the ignition is turned on. The idlespeed motor 
also 
> hums when the ignition is on, though you can usually only hear it 
when 
> you've got your head in the engine bay.
> 
> Stian Birkeland wrote:
> 
> >I'm trying to locate where an annoying buzzing noise is coming 
from.
> >Symptoms:
> >
> >With the key in the 2 position (right before starting the car)
> >there is a buzzing sound from the rear. 
> >
> >What is so special is that:
> >
> >1) It doesn't buzz each time the key is in the 2 position, and
> >2) When it does buzz, there are only about 3 constant buzzes which 
> >last for the same amount of time, then no more buzzing. Reminds me 
of 
> >some sort of reset "back to basic" of an old computer *L*
> >
> >In a few other cases, there is a totally different buzzer sound 
> >coming from the engine compartment (ignition coil?) which 
increases 
> >in volume before it disappears for good. Sounds like a high 
current 
> >buzzing noise.
> >
> >The symptoms I have described...what can I do to fix them. I would 
> >think that even if it is a DeLorean ;) it shouldn't sound like 
this 
> >or?
> >
> >Best wishes
> >Stian Birkeland
> >Norway
> >
> >VIN # 06759
> >
> >  
> >



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