Question about 1998 Volvo V70

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Heather blows intermittent cold air

My Volvo V70 (2005) blows about 5 seconds of hot air (which I have it set to do), and then blows about three seconds of cold (outside?) air. The air speed is not consistent; it seems to blow hard then slow down, then repeat the cycle. It does this for hours, and the car in zero weather never gets warm. I have tried it on Auto, manual, recirculate, etc., all speeds and settings, it continues to do it. Help!! Larry

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It sounds like you need to go to the shop. the blend doors control the air flow, heat, and distribution. There are about 6 to 7 motors in all. They most likely need to be recalibrated. There is also a possibility the Climate Control Module Software will need to be upgraded. There is a small chance that there is a bad blend door motor that is crashing the communication link between the motors and the module.

Either way it goes only the dealer, or mabey a very heavily invested independent shop.

Hope this helps.

Posted on Feb 23, 2009

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