Earlier this year I had to replace my leaky engine oil cooler. When refilling the coolant I sat the jeep on an incline and tried get all of the air out by squeezing the coolant lines and adding coolant. I can tell there is air still in the system though. The car is not overheating or anything but i want to get all the air out. I looked at an online manual and it said i needed a special tool that hooks up to compressed air. Does anyone know of a different way? Or should I start asking around in local forums to see if someone has the tool?