1991 90 10v problems

Dave Fain kf21857 at gmail.com
Thu Aug 30 18:13:54 PDT 2012

Perhaps the temperature gauge isn't working correctly?  A malfunctioning
coolant temp sensor can throw a lot of things off.  It might be a bit
premature to assume that the thermostat is "junk".

From: Huw Powell <audi at humanspeakers.com>
To: quattro at audifans.com
Subject: Re: 1991 90 10v problems
Message-ID: <503F1B8E.8020800 at humanspeakers.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

"Finally I got to change the thermostat. But when I exposed it I found
it was well and truly closed.
I left the thermostat exposed and ran the engine for a while to heat it
up and no coolant escaped past it.
So I still have an engine that wont heat up much and uses twice the fuel
that it should. "

So did you put in the new $10 t-stat???????????

When I swapped out my bad t-stat it tested fine.

Your thermostat is junk, replace it!

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