Air conditioning/ heater

Cynthia Mathis Lindsey

Asked by Feb 16, 2016 at 09:42 PM about the 2003 Mercury Grand Marquis LSE

Question type: Maintenance & Repair

After a couple of days of a knocking noise around
the on off switches. Which I was able to stop by
turning the heater / air to off and presses all the
buttons, I did not have cold air anymore. It just blew
90  degrees hot air. Even the vent blows hot air. I
took it to Medike because the sign said free a/c
check up. After 45 minutes they told me they
needed to run a dye in the line to be sure there is no
leak. That was not to be free. Then they added
coolant. After another 45 they told me my car was
ready. They charged me 159.00. The man at the
desk took me to my car and the there was a
problem with the blend door. He started the car and
showed me the heater was on and he turned the
car off. He said this is how I was to make the a/c
work. He pushed the a|c max and started the car
again. Cold air started coming out. He said that will
make it cold. I paid the bill and drove off. A few
days later I tired doing just that. I never ever got
cold again. Five days later I went back to Mineke
and said I felt ripped off. (I'm and old lady) the new
man behind the counter took it back into the shop.
After and 45 minutes he said 'we told you there was
a problem with the blend door they thought. Not
sure what is causing it to stick. It could just be a
spring. But they need to pull the dash. 5 hour job.
They they would be able to know which part was

2 Answers


I've been hesitant to answer this but these guys you are taking it to are jerks. It is one of two things. From what you describe you have to select the a/c prior to turning the vehicle on. If you have a vacuum leak in the system it would allow this type of operation but my first reply would have also been the blend-door actuator. The blend door actuator in your car is electric so the process he has you follow would not fit that as a failure. I know everyone hates the dealer but I think they may be the right fit for your repair - or at least someone other then the guys you are dealing with now. I hope this helps, I feel bad for you because I think you are being taken advantage of, which unfortunately is not uncommon in the automobile world. I terminated many people for that type of practice

3 out of 3 people think this is helpful.
Cynthia Mathis Lindsey

Thank you. I did try that turned the car off and selected a/c. It worked for him that one time. It doesn't seen to come on for me.

1 out of 1 people think this is helpful.

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