Unique Smell from Air Going Through AC Blower

[EddieCabael]

Whoever has the same problem of mine and got solved or you haven't had an experience for the same problem with me --- but you have idea, please come out and please help get solve my problem:

Please do reply in English or Tagalog, although I used English Version here:

Problem Details and situation/scenario:


At the beginning of this year in late Feb-2013 I started to smell like burnt plastic or like metal to metal friction smell coming from my AC Blower.

I just ignored until June-2013. But I am not relaxed because I know there's already an accumulation of car air pollution with me.

When my Clutch Pedal was making noise I brought my car for maintenance and the company did repair my clutch telling they replaced the clutch disk with new one but they just made a machine works for the affected area of the Ply Wheel or whatever you may call it. After this the clutch noise was removed and made Big OK.

But the problem is --- the smell still there.

Around August-2013 my AC Cooling system has a poor cooling and I brought my car to the company for checking and they replaced my AC Compressor.

But the problem is --- the smell still there.

Around September-2013 my AC Cooling system has still a failure and that the smoke direct from the Panel (from AC Blower) is coming out but there is not enough cooling inside the car. I brought my car to the company for checking and they replaced my AC Freezer or Talaja as they call it. The car cooling now is excellent.

But the problem is --- the smell still there.

I remembered I hit one big plastic, the one being used in wrapping big carton, and it wrapped my exhaust pipe, that time I cut some but most have remained wrapping my exhaust pipe, lately when I checked --- the plastic remains got melted and wrapped around my exhaust pipe and I brought to outside shop to remove the same. And the exhaust pipe was cleaned and that melted plastic around my exhaust pipe from rear side was completely removed.

But the problem is --- the smell still there.

I checked my dashboard and opened all to see which one is not closing or opening whenever there is a switching from AC Blower recycling or not recycling. I found out all are in good order and all are functioning.

But the problem is --- the smell still there.

I checked my AC Drainage system and found OK and nothing is blocked and that AC moisture water is going through that AC Drainage system or AC Moisture hose completely OK.

But the problem is --- the smell still there.

I checked my AC blower air filter in front of passenger side and found empty but there's a slot for a purpose and I inquired from many and they said there must be filter in it and I bought new one and I fixed by myself through Internet Tutorial. And I was able to have it done. The Talaja is still new and being used in less than a month for now, so late providing for the AC Blower Air Filter is not a big deal.

But the problem is --- the smell still there.

What is left now on how to find the source of that smell nobody knows.

My Sedan Yaris 2010 Car was purchased on October-26-2010 and is no longer in warranty period after such long trouble shoot, the smell problem remains.

I found just today 06-Nov-2013, that my AC Valve is exposed, leaving spaces from left/right/top/bottom of the AC Valve --- which I am thinking maybe it will cause to suck the air and throw it to the car inside because of air pressure from the engine. If the pressure from the air engine while ON could not penetrate through the created surrounding spaces from the AC Valve because the blower is set to close or in recycling air setting (where it is taking air from inside the car only and rotating therein) and not the one if open (taking from front side air and throwing at the rear side).

But if there is such kind of smell in case the smell is coming from the accumulated hot air from the engine --- then the smell never stops and it will go through the car inside regardless of AC Blower setting whether recycling or not --- because of such surrounding spaces from the AC Valve.

I remember before, I was searching my AC Valve location and I cannot find because the AC Valve was concealed and covered --- only piping was exposed --- but now, the AC Valve itself is also exposed --- maybe some mechanic did forget to have it covered. Or maybe the AC Valve is by manufacturer's default is really exposed, this I don't know.

I went crazy thinking because of this unwanted smell is mostly occurring while the car moves from the it’s parking being parked of around 3 hours --- means while the car came from cool engine, when the smell is coming out, it’s not continues and the smell is gone but it is sometimes worst. When the car is in stop position but engine and AC are working, it never gives that smell.

While car is running, only two functions are smell suspects: From the Clutch and From the Brake --- but clutch and brake functions now are excellent.

But the problem is --- the smell still there.


And even also my back compartment is clean.


What is left now to find solution and get solve this unwanted smell going through my AC Blower in my front side and going into my lungs in almost more than half year now.

Thanks to all of you,

Edito Tizon Cabael (Eddie Cabael)