Hello thanks for taking the time to read my post.I have a 2000 celica gt 1zzfe, the coil pack on cylinder #4 burned out causing misfires so I checked all my grounds and replaced it. The same damn coil has burned out again. The car ran get for a week then it started misfiring the more time that goes by the worse it gets. My second problem, The heat doesnt always work in my car it hasn't for a couple of years it started way before the coil problem and when it does its when the car is moving, I can feel air blowing just not heat. When the heat isnt working at all the car runs a little hot. I check the coolant and its fine.


Thanks for any help