Engine Cooling problem
2000 Lincoln LS V8 Front Wheel Drive Automatic 128000 miles
My check engine temperature light came on today and the heat indicator gauge went all the way up. I was parked at a drive thru with the air conditioning on. I had the thermostat changed last october because I was having this problem and it has been fine up until this june. I turned the car off and let it sit for 10 minutes and it has ran fine all day today. Please help. I am getting really frustrated with this problem.