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2003 Mercury Grand Marquis Question: Why does my A/C blower blow vent or hot air then eventually cold air?

 

Question

bribri76, Newport News, VA, November 24, 2013, 17:39
 Rookie

2003 Mercury Grand Marquis about six months ago the A/C would work as it should and then occasionally would start out blowing warm air and then after about 5 min. it would blow cold air. Then it became sporadic until now it blows warm air for an extended period of time and then eventually will blow cold air. What should I do to resolve the issue?

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  • Answer #1

    November 24, 2013, 20:06
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     Master

    The HVAC control heads give a bunch of trouble on these vehicles. Have a mechanic with a 'mighty vac' tool check it out! That's all that is needed to find this problem.

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  • Answer #2

    Greg's Orange Auto (13991 Answers) , Orange, CA - (714) 361-9386
    globalhelper November 25, 2013, 05:43
     Master

    seek diag and est from your mech

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