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Subject: WHy is my 4kq's radiator fan always on!

Todd Phenneger wrote:

Car is a 87' 4000cs quattro.  175,000 miles.  Recently the radiator fan

has always been on.  Start car in morning at below freezing temps and it

kicks on, stays on untill you turn car off.  ANY time ingnition is in ON

position it seems fan is on.  Tried putting in relay out of one of my

other cars but that didn't help it any so it appears relay is fine.  Any

There is a temp sensor on the bottom driver's side of the radiator; if this
sticks "on" the fan will stay on.  I'd start by checking that.  You can unplug
the sensor when you turn off the car to save the battery until you get a
chance to get a new one.
hth, chris miller, windham nh, c1j1miller@aol.com
'91 200q ==> http://members.aol.com/c1j1miller/index.html