Crank your engine and turn the AC on high cool, high fan. If your recharging hose is equipped with a pressure gauge, check it to determine if the system needs refrigerant. If the pressure holds steady in the recommended range, the system is full and should not be charged.
The driving distance between Dallas, TX and McKinney, TX is 32 miles. The driving time would be approximately 35 minutes if driving non-stop in good conditions. (The driving time does not take into consideration conditions such as weather, road work and rush hour traffic in urban areas.).
The following Cities are next to Dallas, TX: 1  Plano is 17.8 miles north of Dallas, TX. 2  Garland is 11.3 miles northeast of Dallas, TX. 3  Irving is 12.7 miles west of Dallas, TX.  Grand Prairie is 16.5 miles southwest of Dallas, 1  TX. Mesquite is 10.5 miles east of Dallas, 2  TX. Carrollton is 15.5 miles northwest of Dallas,  TX.