Question about 1993 Chevrolet Suburban

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Front aircond. blows warm. Rear air is cold

On 1993 Suburban R-12 system was low. Added freon. Rear A/c is cold. Front is still warm.System won't take any more freon. Might there be a "blend-door" problem- or a blockage/ or a clogged valve for freon to get to front??

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This is caused by a defective temperature control blend door actuator motor. Don't overhcahrge the system, if one part of dual climate works ok the problem is not the compressor or the system charge

Posted on May 12, 2009

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