This problem stems from where the air is pulled into the blower motor compartment. Mitsubshi did a poor job in filtering/screening this opening and it allows a lot of debris into it (I have to keep cleaning leaves out of mine, they make an annoying sound when I turn the fan on). I haven't come up with a solution yet, but someone might.

 

I rigged up a piece of plastic hose to the end of the drain and the other end to a shop vac. I turned the a/c on high and turned the shop vac on. The amount of crap that I saw in the clear plastic line was disgusting, but it did the trick. I did this monthly just to keep the drain clean.

 

Well, I don't know if mine is making noise due to this, because my A/C works, ut not the best. However, whenever I am driving and I turn my A/C on the car makes a very weird noise. I don't even know what to compare it too, but it sounds like something spinning really fast and hitting something else. I really don't know, sorry guys. Maybe even sounds like a dirty pulley that's spinning, but it's only when the A/C comes on. Oh yeah, plus, whenever my A/C is actually on, when I hit high revs, I can hear what sounds like an exhaust leak, almost turbo sounding. However, it only does that when A/C is on, if I'm driving hard with no A/C I never hear a leak.

 

If it's only when you turn the A/C on that you get the noise, start by checking the compressor clutch assembly and around the compressor shaft to see if there is any debris.

 

will do, I bought a new A/C belt, could it be the pulley? Here's a question for ya, is there a pulley for the A/C and if there is, does it ONLY come on when you turn on the A/C? If that's the case, then maybe something is wrong with my pulley

 

Yes there is a pulley for the A/C. It is a clutch based pulley though. It free wheels until the A/C is turned on which engages the clutch causing the compressor shaft to turn. You might also have a bad compressor (I hope not. They are expensive)

 

Well, I had all my belts changed, and I can't hear any noise anymore. Although.....my tranny JUST blew out this weekend, so it really sucks.

 

My fan only works on 4, AC only works on 1,2, or 3. I found this thread https://www.evolutionm.net/forums/sh...ad.php?t=90378
That explains the problem. But I don't know where the heator resistor is located on an '04 Lancer OZ. Could anyone enlighten me?

 

I have a bad problem of vibrations when I turn on the ac coming from under the hood. I can hear it pretty bad going through a drive thru

 

pictures are not working.

 

never mind they are working.

 

Where is the blower motor compartment and what does it look like?

 

Bump

 

passenger side under glove compartment.

 

I love that i can bump this, but can someone post pictures of the drain, my car started doing this thismorning. I just need to know where to attach the vaccuum.