anybody that has anything please help i don't wont to waist my money at a shop till i have to.... Basically i have a problem with over heating but it doesn't over heat till im sitting still at a stop light then it starts to over heat... so i turn my heat on all the way and the needle goes down to the top of the little picture/design thing on the engine temp gauge....... then when i go from that stop light its starts to over heat then my car shifts to second and it starts to cool down an goes up in third before going down at constant speed. i dont know what it is i thought i was out of coolant so i filled it up and still does it.