Question about 1999 Chevrolet Silverado 1500

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1997 chevy suburban 1500

My fornt and back heater works but when turn to defrost why would it blow cold air also the front takes longer than the back heater to warm.

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The air ducts need to warm up ...much like adjusting the water for a shower.

For your 2nd question..it's just the nature of the beast.

Hope this helps you

Posted on Dec 31, 2008

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Posted on Jan 02, 2017

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