Date: Sat, 20 Sep 2003 21:47:05 +0200
Reply-To: Robert Steven Fish <fish@SALZBURG.CO.AT>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Robert Steven Fish <fish@SALZBURG.CO.AT>
Subject: Re: vibrations from front fan
Content-Type: text/plain; charset="iso-8859-1"
It's your high speed fan. They all kick in like that, and they all sound
like a rocketship landing in your front seat.
The thing is.... that your high speed should not really be kicking in,
except under rather extreme situations. If you have the A/C on and are
doing some hill climbing in hot weather... maybe....
Or are sitting in traffic with A/C on etc.
But under normal circumstances, only the low speed will turn on, which you
will hardly notice.
Get your cooling system pressure tested, and test the efficency of the
existing coolant. If it is old coolant, flush the system and replace with
VW autobahn blue r-11 coolant mixed 1:1 with distilled water.
usually you can also watch the temp gauge and see what is happening... when
the high fan kicks in, you should also see the temp needle slowly creeping
back down below 3/4.
Good luck!
RSF
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<º)))>{ <º)))>{ <º)))>{ <º)))>{ <º)))>{ <º)))>{
Robert S. Fish
Salzburg, Austria
1987 Wolfsburg Vanagon 2.1 GL Weekender
1987 Golf Cabriolet
1991 Golf
----- Original Message -----
From: "Dan Erlandson" <danoer1@ECLIPSE.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, September 18, 2003 1:36 AM
Subject: vibrations from front fan
> OK so this has happened before, but the last time was at least 8 years ago
> or so and I forget what the mechanics did at the time, but now I'd like to
> try my hand at fixing it...
>
> Lots of vibration from the front fan assembly when the fan kicks on... my
> wife was driving the van home today and she described it like going over a
> rumble strip only there was no rumble strip. She pulled over and turned
the
> van off and the sound kept on going (she had the AC on at the time).
After
> the van cooled down a bit she started it up and no sound. I'm unsure if
the
> sound will start up again if the engine heats up and the front fan kicks
on
> or if it only occurs when the AC is on, I'll check that out tomorrow.
Might
> it be the thermoswitch for the fan or is it the fan motor itself? There
are
> a number of speeds for the fan, no? One for the engine temperature and
one
> for when the AC is on??
>
> Any help is appreciated.
>
>
> --
> Dan Erlandson
> Flemington, NJ
> > danoer1@eclipse.net
> 91 VW Vanagon GL 174,000 mi
> 99 VW Passat 111,000 mi
>
