Daughter has grandmother's focus rented while waiting on other guy's insurance to cough up check for damage to her car and family is involved here.Since daughter lost her job recently along with her house dad would like to do this repair. Hope you can help me with this since daughter can't afford shop repair and frankly neither can I. Local Ford says needed is evaporator solenoid,also supposedly cost to repair around $300.00 Also, can she continue to drive the car while waiting for repair?