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hi julietee, mostlikely the cause for the intermittent starting problem, is mostlikey the idle air control valve, this allows the car to remain started by letting air into the combustion chamber when your foot comes off of the gas pedal, as far as the a/c fan I think you may need to have the blower motor resistor, replaced as this is the most common problem with a/c fans
anything else please let me know
Both of these remedies have been tried and it is neither of them.
hi julie, i spoke with another expert, and we have come to the conclusion that you mostlikey have fuel problem, when the vehicle acts up like you say, you will need someone to test for fuel pressure, mostlikey, a fuel pressure regulator, or the pump itself.