Quote Originally Posted by CivicVTi View Post
Looks like your cylinder head gasket needs replacement...top overhaul. My friend's diesel Revo experienced the same symptoms you are experiencing...overheating and mahina hatak. She eventually had the vehicle top overhauled and the problems vanished. Although your vehicle could have other problems, in my opinion its due for a top overhaul.

what is the mileage of the car? have you operated the engine without air filter before? did you change your fuel recently? the engine might be suffering from preignition caused by carbon build up. does your engine use a timing belt? if the problem was due to carbon build up, you don't need an overhaul. just have the combustion chambers decarbonized