car wont start after driving

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i have a 2005 chlysler 300. morning or nights my car start just fine but if i drive it for few minutes or stop to the gas station when i tried to start it, it wont start. if i sprayed starting fluid in the air intake or waited for minutes the car will go back to normal and start. i had this problem almost for 3 years but now it getting worst. its only happens after the car reach to normal temperature