Hi, I have been searching on the internet and not had much luck so I am hoping someone here can tell me. On the 22R - 4cylinder 2.4L petrol motor there is a large hole in the back side of the head - drivers side. (No. 4 Cylinder) There are 3 bolt holes around this hole.
I would like to know what is "missing" as the engine sounds like it has a hole in the exhaust manifold....and of course the "loud noise" drops off as soon as it is covered.
Thanks in advance.