My guess is that it is the coolant connector on the rear of the engine. It is plastic and in a tight spot. It is easily accessable if you remove the air intake but that is a lot of work. I was able to change mine by using a ratcheting pivot wrench (10mm i think). There are 2 bolts that are not torqued much (in fact they can't be due to the plastic part.)
Use a mirror and light to see the area between the firewall and engine. If yo0u see signs of coolant there it is the problem. I removed mine after a few hours of work (blind work at that) by taking off the plug wire cover and the cabin filter cover. I think it might also help to take off the throttle body but I did not. If you do not have small hands and patience you will have to remove the air intake (get new gaskets) but it is more time but sure to work as the part is completely accessable. If you take the engine intake off you should also replace the plastic fitting underneath as it will fail soon after the rear one does.. |