found a picture online. It is an egr valve.
Chuck
--- In diesel_mercedes@yahoogroups.com, Nate Rector <tccservice111@...> wrote:
>
> is it your vaccum amplifier.
>
>
> From: c24052000 <jcrcpa@...>
> To: diesel_mercedes@yahoogroups.com
> Sent: Thursday, September 22, 2011 8:40 AM
> Subject: [diesel_mercedes] Re: one more thing
>
>
> Â
>
> You may be correct since this was a calif car. I will just unplug the electrics going to it and see if it stops the humming, and does not affect the motor.
> Chuck
>
> --- In diesel_mercedes@yahoogroups.com, Bobby Yates Emory <liberty1@> wrote:
> >
> > Chuck, I haven`t noticed one on a MB, but on my Nissan truck that is
> > a vapor tank. Its purpose is to prevent fuel vapors from being
> > released to the atomsphere. The EPA requires it but you MB doesn`t.
> > You could plug the hoses and it should run fine. If you get a picky
> > inspector, he may demand it. I wouldn`t think a diesel needs one as
> > much as gas car, since diesel is not as volitile(SP?). Bobby
> >
> > On 9/21/11, c24052000 <jcrcpa@> wrote:
> > > there is a piece of equipment in front of the water overflow tank. Vacuum
> > > lines run into it, a couple of plugs going in, and it has a round top 3
> > > inches in diameter.
> > > It is humming. Any idea what it is and why it might be humming.
> > > 84 300sd
> > > Chuck
> > >
> > >
> > >
> >
> > --
> > Sent from my mobile device
> >
> > Toward freedom,
> >
> > Bobby Yates Emory
> >
>
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