Question about 1998 Pontiac Grand Prix

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The heat blows cold on driver side and warm on passenger side whay?

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Check to make sure you are not in "Dual" zone and if you are, turn the driver temp knob up all the way to see if it gets as warm as the passenger side. If this doesn't work, you might have a flapper door actuator fault as rustfarmer has mentioned.

Posted on Dec 13, 2014

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You may have a flapper door actuator bad, such that it never opens to heat position for one side.

Posted on Dec 12, 2014

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As per your problem mentioned. There are few solved help links to troubleshoot these problems. Go through the list and Click the link below:----

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http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html


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As per your problem mentioned. There are few solved help links to troubleshoot these problems. Go through the list and Click the link below:----

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http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html

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------------
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