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Why does 1995 Suburban front air vents blow cold air but rear air vents blow hot air?
Wiki User
∙ 18y ago
Possible blockage in the rear air units expansion valve. I just replaced mine for the same reason.
Wiki User
∙ 18y ago
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thats because your blower went out
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You need to check the vacuum lines for the a/c system for leaks, breaks and loose ones first.......
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The most likely cause would be a vacuum leak at the rear of the engine or a defective selector switch.
