Excuse the basic question, but I'm not too adept at car repair/ maintaining, but I wish to learn. My manual is long gone and trying to find the answers on the 'net is not as comprehensive as i first thought.
I have a 2007 4-door Corolla. My engine is running a little hot and I'm thinking my engine coolant may need to be changed. Again, sorry for the dumb question(s). Must I first drain all the anti-freeze before anything else? After, add just new anti-freeze or must it be a mixure with water? Also, there's a plastic tube with "engine coolant" written across it. Must I fill that separately or will that tube be filled once the coolant is replaced and the engine started? Anything else besides what I stated above? If there's a step I didn't mention, please advise. This board has been very helpful in the past.
Thanks again in advance. Much appreciated.
Brian