What is your question?
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What is your question?
only blows cold air even when engine is warm. Turning temp gauge up does not solve problem
What makes this problem better or worse?
no heat even when engine reaches operating temp
How long has your 2002 Mercury Sable had this problem?
4 weeks

1 Reply
Unless the blend foor has been verified as the culprit - recommend checking the coolant level and heater core for restriction: With engine at normal operating temperature - *BOTH* of the heater hoses should be as HOT as the 'top' radiator hose is - if they are grasp for a couple seconds!