I hear the same noise, and the feeling goes both ways.... noisy injector or valve issue. Its been there since Day 1 just like everyone else so the past three years I've told myself INJECTORS

Just drive the damn things

 

I'll be the first to admit it, it's a designed problem. Not a biggie, but known. If everyone has gotten a chance to grab Russel's maintenance book, it is in there.

60k maintenance adds a nugget to check valves. The tappets I guess will compress, some faster/more than others, and cause your valvetrain to develop click click.

I have that, it's there - first signs close to 5k or so, slowly increased but nothing bad and I've driven this car (see below). But damn the car is trackable and reliable both. I have only the mods in the sig, still running pig rich as all can be, and while I get a code or two a year, things like lean from oil/K&N stuff or overboost/MAF (from hittin'! it at 60mph), I don't fault the mitsubishi engineers, this is not a problem. I'll let y'all know when I do get that fixed what I pay for it. But at 59k I am holding pat, and have four more track days just this year ahead of her, I'm not worried.

 

yep, all of my mods are/will be reversible like yours so if need-be, i can take it in. honestly, the ONLY time i hear it is when i pull in my garage or through a drive-thru window and it's bouncing off the walls. so far though she pulls like a freight train on the stock tune. loving every minute of it

btw, mine started out around 2k miles.

 

I have a tick on my IV. I've been told its the tappet/lash adjustors and that it is a common problem with evos. The noise comes from right at the valve cover area. The mechanic told me it can cause the engine to kill itself when driving hard.

 

Mine makes tick noise when AC is on but also sometimes when I used to turn it on after a few days it. Would make a weird noise as well

 

Mine makes the same sounds, and I only have 1k miles on mine. Sounds like a clanking sound near the exhaust manifold. Took it to mitsu and they said everything was fine of course.

 

I had the same problem as the OP. My tappets had to get replaced under warranty, and also a broken exhaust cam as well.

 

I know this thread is worn out but when I first bought my car a last month it had 28700 miles on it and was quiet except for the noisy clutches. Now I have almost 30k on it and I have the ticking noise that in my opinion is not normal. I am a former mechanic on military equipment and have built my share of cars also. This noise was not there before and now its there. The temperature has dropped a lot here in Wisconsin but the engine is warm and has me a little concerned. My car still has the factory warranty on it up to 60k with a 10 year 100k mile warranty on the powertrain so I am going to take it to the dealer next week. It is from the right rear side of the engine near the TB. Almost sounds like injector noise but is only at one side it seems.

 

First, many people do not know what a tappet is. Imagine you have a cup. That cup has a raised, circular platform inside of it. The platform is located in the direct center of the base(inside of cup). The raised platform is 1/3rd the area of the cup's base and, located centrally, on the largest plane of the base. The cup is the bucket(mechanic speak lol). Buckets are tappets for all intensive purposes.

You have to remember, the 8/9 EVOs have different head designs. The older EVOs do not use buckets. They have oil squirters and rocker arms. That is why they have ticks for different reasons. In fact, they actually sound different to the trained ear.

Do not sweat the ticking in a X. It may even change pitch with different oil viscosity or temperature.

The bucket, for our purposes, has a hammer hitting at both, centrally, large sides of the base. It is bound to compress a little, it is steel for the love of... This is why some Xs heads are louder than others.(in addition to oil temp, viscosity, and quality).

At the bottom of this(link below) page it illustrates the X head design on the left and the 8/9 head design on the right....see the differences?

http://constructionmanuals.tpub.com/...s/14264_50.htm