Question about 2003 Saturn L-Series L300

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Heat only blows through the dash vents, not the defrost or the floor vents. What would cause this.

Awhile back when I would run the A/C, I would hear a flapping noise. It didn't matter what speed the fan was on. It has since stopped. Not sure if that would have anything to do with it or not.

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The vacuum line that controls the flap has a leak or is disconnected. If you can get to the vacuum manifold under the dashboard you can see what lines are connected or not connected. Good luck. It's a tight fit to even get under there without taking the whole dashboard off.

Posted on Nov 12, 2014

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