Question about Cadillac Seville

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Cold AC but weak Airflow---Also Driver side not as cold as passenger

Weak airflow--blower is strong on high setting but little air volume. Driver side is not as cold as passenger side (pass side blows ice cold). If I turn on the rear AC blower it gets cold and blows fine but then the front has almost zero airflow. Freon is full--cooling line is cold. Blower and temp control work but lots of blower sound and little airflow. I've switched the inside/outside, defog, etc. to work the air doors and still the same. 1999 Cadillac SLS.

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  • Anonymous May 11, 2009

    Weak heater airflow on driver's side, air cool to cold rather than warm.

  • yadayada
    yadayada May 11, 2010

    clean the evaporator core.

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  • Master
  • 3,113 Answers

The air doors are controlled by actuators that on of them or so may need replacing.

Posted on May 09, 2009

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1st: make sure you have the fan up all the way, and you're A/C is on the MAX selection. If it's on Normal A/C it will blow lightly even with the fan up as far as it will go - however - if your heater blows strongly, but he A/C on MAX does not - you may need to replace the blower motor (usually installed on the passenger side, on the rear firewall, or under the dash on the passenger side (near heater core).

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Please let me know if you need further assistance.

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