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Step number 1---ck coolant level in the radiator. Is the radiator full?, is the coolant heating up? hows the water control valve? I all OK--pobably electrical behind the dash. What matters if THE HEATER WORKED LAST WINTER???????

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โˆ™ 2005-10-28 21:33:26
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Q: Why does the heater blow cold air in a 91 DeVille when it worked last winter?
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