05 PT Cruiser - wouldn't start - replaced battery - now turns over won't stay running. Just dies out - rec'd a jump and the car was running hot. Also I have noticed the when running the heater it does not warm at all
Make sure the coolant is full. If the check engine light is on, scan the computer to identify trouble codes. If the engine was overheating, you may have blown a head gasket. If that is a concern, check engine compression.