Date: Wed, 28 Nov 2007 23:54:00 -0500
Reply-To: Allan Streib <streib@CS.INDIANA.EDU>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Allan Streib <streib@CS.INDIANA.EDU>
Subject: Re: Changed thermostat - temp gauge still reads stone cold
In-Reply-To: <006201c83242$62c7c9f0$6701a8c0@TOSHIBALAP>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
If the gauge is working, I think this sounds like the sensor. Had
the very same thing happen to me in an A2 Jetta, which I would assume
shares a lot of the same instrumentation. In my experience those
sensors (both for the gauge and the ECU) are only good for a few
years. Luckily they're pretty inexpensive; I recommend keeping
spares on hand.
Allan
On Nov 28, 2007, at 11:43 PM, Scott Daniel - Shazam wrote:
> First you need to find out if it's really running that cold, or if
> the gauge
> is just reading low or not working.
> You did say the heater works well - so maybe it is running warmly
> enough.
> Easiest way to find out temps very quickly and completely non-
> intrusively is
> with an infrared temp gun - so many uses you gotta have one.
> Check the main hoses coming off the engine, you'd like to see 180
> - 190 or
> so warmed up .
> If I am wondering if the temp gage is working, I just jumper the
> two wires
> together - undo them from the *gauge* sensor, not the ECU one,
> jumper them
> together, turn on the key, and see if the temp gauge pegs. If it
> does,
> it's workin.'
> Scott
> turbovans
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> Behalf Of
> David M
> Sent: Wednesday, November 28, 2007 8:15 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Changed thermostat - temp gauge still reads stone cold
>
> I went on the first extended test drive today after
> replacing my thermostat. The temperature gauge still
> does not move above the lowest thick bar. If anything,
> it's worse than it was before. Is it possible the
> replacement thermostat was bad (it was a brand new
> Behr)? Or, is it possible there is some other problem?
> The van drives well and puts out lots of heat from the
> vents. The fan is not running. I hate to think I'm
> damaging the engine.
>
> David ('87 Wolfsburg 2.1 auto)
>
>
>
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