Question about 2006 GMC Yukon

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Rear heat in 2006 yukon blowing cold air

Inoperable rear heater

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Locate the rear heater hoses, make sure eng is at operating temp.
fill of the 2 hoses , should be worm tot he touch, if one is hot and the other is luke warm, the problem is in the circulation in the rear heater core. thanks and good luck . let me know.
kindest regards Bill ps. don't over look the fan speed at the rear core.

Posted on Jan 30, 2009

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Posted on Jan 02, 2017

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