I need help ! I own a 2001 Jaguar XJR Supercharge and my car is over heating. I have had the coolant hose, thermostat, water pump, and coolant tank replaced but my car is still over heating. the oil was checked and no mix, no white smoke coming from tail pipe to indicate a blown head gasket but my car will over heat after driving about ten minutes, I can let it run, turn ac unit on while the car is running(in park) and the temp gauge will display normal but soon as I drive the car after 10 minutes the gauge shoots all the way up. Lost and confused. can you help, thanks
Edit/Delete Message

 

GGG moved your original post here and there are responses.

 

Make sure the electric cooling fans are working. They should come on whenever the A/C is on. Or, it could be a case of coagulating (sp?) coolant. There have been cases of green and orange coolant being mixed and causing blockages.

 

Make sure BOTH electric fans run. Check the splash shield under the car. It directs airflow. Get an obd2 reader that works with your cell phone. That will give you a
a real temperature gauge. The jag temp gauge only tells you cold, warm, too hot and
nothing in between. That is why it jumps so fast to hot. You should see 195 degrees on a 95 degree day and not over 212 sitting on a 110 degree day.

 

+1 for checking the fans.