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DISCUSSION => Electrical => Topic started by: max123 on June 07, 2010, 04:25:58 PM

Title: Weird Ventilation Fan Problem
Post by: max123 on June 07, 2010, 04:25:58 PM

Maybe someone else has dealt with this before, because I'd rather not go on a fish expedition under my dash.

Over the winter I noticed that my ventilation fan was blowing cold on really cold days.  I figured it was the temperature control valve.  Fine - but I recently noticed one other quirk.  If I have the fan on 4 and the temp guage all the way to cold I get tons of air.  Turn the temp gauge to hot and something restrict the flow alot.  It's almost like the vent gets blocked.

Any ideas - I thought that the temp control gauge wouldn't have any connection with airflow?

Title: Weird Ventilation Fan Problem
Post by: longtallsally on June 08, 2010, 04:30:04 AM

Perhaps something is clogged in the heater core or the flap for the heater valve?  Have you verified that the heater core and valve are working?

Title: Weird Ventilation Fan Problem
Post by: max123 on June 08, 2010, 02:45:39 PM

Haven't pulled it apart yet - was hoping to get some ideas first.