Question about Nissan Xterra

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Every time i turn on my ac or heater and start driving it starts to squeal until i turn it off. how can i fix this?

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If its the belt slipping under load replace it if necessary. Inspect the belt, if it looks good adjust the tensioner. If its the compressor, add freon with the oil in it. If it don't fix it, its time to replace it.

Posted on Oct 15, 2010

  • Teddi B Oct 15, 2010

    Also it might be debris like leaves in the blower. If the noise is coming from the vents. Remove the blower and remove anything that is not supposed to be there.

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