Outside smoke smell entering Innova's cabin through back aircon

[number001]

This unresolved issue deserves its own thread.

Problem:

With the back aircon in use or " on ", outside smoke smell is apparent esp. when stuck beside old diesel powered PUV, bus, delivery vans, and tricycles. When not around these types of vehicles, smell is not detected.


Solution: None so far

[number001]

Posting all previous posts regarding this topic.

We have a 2011 Innova E and if there is really heavy smoke (black smoke belch) outside from other vehicles in traffic, the odor becomes very noticeable inside the cabin. If I'm not mistaken, this is more apparent when the passenger aircon at the back is on. Anybody experience this? Note: aircon is in recirculate mode.

This does not happen to our Fortuner (the one with the aircon switch at the third row passenger).

Thanks!

http://tsikot.com/forums/toyota-cars...ml#post1878370

Up!

I would really like to hear from G and V owners if you ever experience smoke from outside entering the cabin through the a/c system. I never had this problem with my Fortuner which had denso a/c system.

We are deciding whether to get a 2012 Innova G and want to make sure this does occur with the G variant.

Thanks!

I got my Innova V VVT-i last 2010 ang never experienced this even at full blast A/C both front and back.

http://tsikot.com/forums/toyota-cars...ml#post1885213

I finally found why outside smoke (smell) is entering the cabin through the aircon. It is coming in through the passenger aircon (2nd and 3rd row). I tested this by just turning on the main aircon at the front and leaving the back aircon off (2nd and 3rd row).

Anybody experience this ? Esp. G or V owners. I think most owners don't use the back aircon that's why they don't notice this.

PS: 2011 " E " D-4D M/T

di ko to na experience sa G ko. bukas man o patay yung 2nd and 3rd row AC.

http://tsikot.com/forums/toyota-cars...ml#post1885396

I had this problem on my 2006 innova j gas. the problem is the aircon design at the back.
Dito pumapasok yung outside fumes:
1. Yung air flapper/side vents (not sure what this is called) located sa side ng rear bumper (left and right)
2. yung bakal sa likod ng bumper. you will see this pag tinangal yung bumper. you will notice puro butas yung area na yon.

Solution from TMP c/o Toyota Pasong tamo:
1. Permanently takpan yung left and right flapper.
2. Permanently takpan lahat ng butas sa bakal.

Effect:
Hinbdi kagad masara yung mga doors dahil hindi kagad makalabas yung excess air.
Yung excess air lalabas sa left and right side ng dash board.

After 5 years I sold my innova. However, I bought another 2011 innova j gas. Surprisingly, ganon parin!
This time ako na lang gumawang solution 1 & 2. I used vulcaseal

Dito sa office namin we have 3 innova j gas and 1 innova g gas. Lahat sila has the same problem on fumes entering the cabin. Im just surprise bakit hindi ito major issue sa tsikot.

http://tsikot.com/forums/toyota-cars...ml#post1885505

yes there are air vents on both sides near the rear bumper but there is a thick insulating material in the form of a thick foam or some kind of material. I've seen this in my unit 2007 model. not sure about the earlier models. there are also rubber flaps that are normally closed and only opens when a door is closed. yes the fan at the back just re-circulate air inside but can suck air from 1 side of the vent. Have never encountered any smoke smell entering the cabin. The small holes on the rear bumbers are for the clips so if the clips are complete those holes are covered.

what you can do is to close one side ( passenger side ) where the blower is located and leave the other side open.

http://tsikot.com/forums/toyota-cars...ml#post1885533

It seems owners not experiencing smoke smell cabin through back aircon are at least G variant owners (and above).

So far based on this informal (and extremely small sample), E and J variant are prone to this.

G variant
Ginnova
SEALANDER
ericson21
spyghost

V variant
Louie_18

E variant
number001

J variant
wakin

http://tsikot.com/forums/toyota-cars...ml#post1885540

ganyan din 2008 innova G namin. pag naka-On ang blower sa likod pumapasok amoy galing sa labas. never bothered to complain it sa dealer. pano nyo tinakpan sir? tinanggal nyo pa yung rear bumper? if yes, anong steps pag tanggal ng rear bumper? kung magawa ko kasi tatakpan ko yung iba para maminimize lang ang pagpasok ng amoy
TIA

http://tsikot.com/forums/toyota-cars...ml#post1885550

the process that it took to completely fix my problem on fumes entering the cabin is almost a year. its not a one time solution. the blower is located at the rear right side so it has a tendency to suck air at the rear right flapper.
The following are the steps done at a time:
1. seal rear right flapper, seal rear right water drain (just under the flapper). tested for 3 mos. still problem persist.
2. seal rear left flapper, seal rear left water drain (also just under the flapper), tested for another 3 mos. still problem exist.
3. remove the rear bumper. you will see that chasis metal with lots of holes. this is not used for clips. seal every holes that you see. tested for another 3 mos. problem solved

During the different tests, naka set sa high ang blower sa likod na aircon. nag sindi ako ng katol ang placed it near sa flapper and chasis holes to check if the katol smoke would enter the cabin and true enough meron nga. it took me every 3 months before i can have my car brought to tpt dahil tinatamad ako. All of the 3 steps i mentioned nakita ko kung pano ginawa sa tpt thats why i know yung progress. they let me take a look sa loob ng bay area nila. since alam ko na kung pano nila ginawa so ako na lang gumawa nung 2nd innova ko.

hindi naman ganon kahirap isara yung mga doors, may konting effort lang. g variant yung sa ka officemante ko meron ding problem. lahat sila ginaya yung solution. actually hindi solution kundi cover up lang sa palpak na design. na involve na rin dito yung isang VP ng tmp. they are willing to loan me either a revo or an altis during the time na nagiisip sila kung pano maayos yung car ko. but then sabi ko no need for the loaner car gusto ko lang maayos kaagad.

ma swerte yung hindi nakaka encounter ng fumes comming from outside.

http://tsikot.com/forums/toyota-cars...ml#post1885692

Confirm ko rin po sa aking innova j diesel nabili nung November 2011 itong problem na smoke entering thru aircon vent.

Pinatignan ko po sa Toyota Davao last month at sabi nila wala naman daw sila makitang butas na maaring daanan sa harap. Di ko po naisip yung sa back aircon.

Thanks so much for confirming this issue, pa-tsek ko ito sa 5k pms ko.

[number001]

Reposting all previous posts regarding this topic.

http://tsikot.com/forums/toyota-cars...ml#post1885733

puzzled din po ako. i even went to the extent to remove the sidings ng 3rd row where the blower is located. gabi ko ginawa yon. ang idea is to use a pwerful flash light at ilagay sa near the blower ng aircon. habang naka ON yung flashlight tinignan ko from labas kung may makikitang ilaw. and yes meron akong nakitang ilaw from labas. that means doon pumapasok yung fumes.

http://tsikot.com/forums/toyota-cars...ml#post1885795

hindi ko po ma check. wla po ako sa pinas right now
i remembered something, when i removed the rear right siding on the 3rd row seats, comming from the blower dinukot ko po kung may connection yung rear chasis sa blower (parang elbow), as far as i remember parang tuloy tuloy. naisip ko ata noon na dapat may nakaharang doon sa may elbow. one thiing to check din is the rear right signal light. pag hindi maganda ang lapat may chance din na pumasok dito.

http://tsikot.com/forums/toyota-cars...ml#post1886730
totoo nga yata yung problema in sir wakin, yung innova G 2011 namen nadaan kanina sa esterong mabaho nagreklamo is esmi sa likod; medyo dumadalas na ngayon umamoy pag may mabahong nadadaanan (one month na pero di consistent; sya lang kasi nakakaamoy sa likod hehehe); pero saglit lang ang amoy mga 3-4 sec lang pinakamatagal. at yung usok di pa naexperience so far. pede po ba sir wakin paki-post yung pic ng holes na tinakpan.

http://tsikot.com/forums/toyota-cars...ml#post1886792

Solution to the smoke smell entering the cabin:

1. If stuck in traffic surrounded by any old diesels (jeep, PUV, delivery van, 10 wheelers, etc...), turn off back aircon immediately.

2. Set the aircon in front to a higher blower speed and lower temp. to compensate.


PS: Depending on the number of passengers, these steps might cause discomfort (warm cabin) if performed when the vehicle is running in the summer afternoon heat.

http://tsikot.com/forums/toyota-cars...ml#post1886818

sa akin kapag nadaan sa may nagsisiga, pumapasok din sa loob yung amoy. pinacheck ko nung 1k PMS wala naman daw nakabara sa mga vents. papacheck ko ulit sa 5k. innova g din, last dec lang namin nakuha.

http://tsikot.com/forums/toyota-cars...ml#post1886837

bat ganun sa ibang naka innova G? aw.

sakin kasi never talagang may pumasok na amoy sa loob galing sa labas eh. 1 beses lang talaga. nung napindot ng ermat ko yung may sign na air outside going in sa AC ko. tapos naka amoy ako ng usok galing sa labas, tapos nakita ko ganun settings, pinindot ko lang circulate sa AC ko, ayun never na ulit nangyari yung ganun na may pumasok na mabaho or amoy usok sa innova ko.

kahit sa innova ng friend ko wala din ganun pag nakakasakay ako. innova G din na 2010. sakin kasi 2011 model naman. bukas man or hindi yung AC din sa 2nd row, wala din amoy coming from the outside.

http://tsikot.com/forums/toyota-cars...ml#post1887100

umuupo din ako sa likod pag tinatamad ako mag drive at erpat ko pinagddrive ko ng innova, wala din namang amoy na galing sa labas na amoy usok or mabaho kahit naka ON or OFF yung 2nd row AC ko. kahit ako naman ang driver at loaded kami with 6, wala naman daw amoy na amoy usok ang sinasabi ng ermats at kapatid ko.

http://tsikot.com/forums/toyota-cars...ml#post1889063

boss, eto po ba yung sinasabi nyong butas (encircled in red) na pinatakpan nyo?

http://tsikot.com/forums/toyota-cars...ml#post1889251

yes, yan nga yung tinakpan ko. notice also the hanging metal connecting sa bumper, may butas din yan (near the bolt). This is the underneath view. at pag tinanggal mo pa yung bumper (front view), may makikita ka pa. madami yan.

http://tsikot.com/forums/toyota-cars...ml#post1892502

Sa mga nakaka-experience ng fumes getting in to your rear aircon, check you rear shutter flaps passenger side doon dumadaan ang usok galing labas.

Had my aircon cleaned and rear evaporator replaced today, found out also today that the rear aircon is not recirculate it gets outside air from the shutter flaps. The rear aircon assembly has a tube connected directly on the passenger side shutter flaps.

Problem with the shutter flaps is that it has no user control on opening or shutting it close, control is only by cabin pressure.

http://tsikot.com/forums/toyota-cars...ml#post1892628

the rubber flaps are located at sides of the rear bumper. the flaps are one-way and if air is sucked from that portion, the flaps actually will close. the fan does not suck air from the outside but from inside the cabin. i intentionally covered the opening of the rear fan before and no air comes out of the rear air-con vents.

http://tsikot.com/forums/toyota-cars...ml#post1897734


Heavy traffic noong Saturday morning sa EDSA and we were 5 in the van... Bukas ang blower sa likod pero wala namang pumasok na amoy ng usok ng tambutso...
15.2K:froggy:

[number001]

We can tell from the replies of other owners that this " problem " exists in all variants.

I don't know what kind of engine - gas or diesel, do those owners with this problem, have. But I noticed, gas or vvt-i owners are not experiencing this. ie. Louie_18 and CVT. I don't know about ericson21. I think the others are D-4D owners.

I think it was either GINNOVA, mile2 or wakin, who posted that rubber flaps covered by the rear bumpers are operated (opens/closes) depending on the cabin pressure. I noticed the location of the rubber flaps is quite close to the tail pipe of the Innova. Could it be that D-4D owners with this problem are probably smelling the smoke coming from their own vehicle's tail pipe? Just a hypothesis.

[ericson21]

We can tell from the replies of other owners that this " problem " exists in all variants.

I don't know what kind of engine - gas or diesel, do those owners with this problem, have. But I noticed, gas or vvt-i owners are not experiencing this. ie. Louie_18 and CVT. I don't know about ericson21. I think the others are D-4D owners.

I think it was either GINNOVA, mile2 or wakin, who posted that rubber flaps covered by the rear bumpers are operated (opens/closes) depending on the cabin pressure. I noticed the location of the rubber flaps is quite close to the tail pipe of the Innova. Could it be that D-4D owners with this problem are probably smelling the smoke coming from their own vehicle's tail pipe? Just a hypothesis.

sir, my innova is a G variant 2011 D4D. have you tried to cover that holes in the picture encircled in red?

[spyghost]

We can tell from the replies of other owners that this " problem " exists in all variants.

I don't know what kind of engine - gas or diesel, do those owners with this problem, have. But I noticed, gas or vvt-i owners are not experiencing this. ie. Louie_18 and CVT. I don't know about ericson21. I think the others are D-4D owners.

I think it was either GINNOVA, mile2 or wakin, who posted that rubber flaps covered by the rear bumpers are operated (opens/closes) depending on the cabin pressure. I noticed the location of the rubber flaps is quite close to the tail pipe of the Innova. Could it be that D-4D owners with this problem are probably smelling the smoke coming from their own vehicle's tail pipe? Just a hypothesis.

2011 G vvt-i owner here, and yes i as stated in the huge Innova thread, yes I experience this. One thing that make me certain that the entry point is somewhere on the rear end are these 2 instances on separate occassions.
- Rear A/C ON and traffic: A jeepney is on my right side and his muffler is on his left. I CAN smell his smoke
- Rear AC OFF and traffic: A jeepney is on my right side and his muffler is on his left. I CANNOT smell his smoke

BTW, I just sent TMP an email about this with a link to this thread.

Hi,

There had been numerous discussions in Tsikot.com board about the Innova units sucking in outside air. I am personally experiencing this in my 2011 G vvt-i variant.

Can you please shed some light on this issue?

http://tsikot.com/forums/toyota-cars...-aircon-86925/

Thanks

[myk384]

same here, 2008 Innova J gas. Now my dad is finding a shop to fix this.

[spyghost]

Dear Mr. ______,


Thank you for contacting the Toyota Customer Assistance Center . We appreciate you taking the time to write us regarding your concern on your 2011 Innova.



Upon receipt of your feedback, we coordinated this with our technical team and they have recommended having your vehicle checked at an authorized dealer. We recognize your concern based on the number of similar feedback you saw online. We wish to inform you that we are more than willing to evaluate your unit and that any of our dealer’s Service Department is equipped with the necessary tools and knowledge to assess such condition on your Innova.



With this, we would like to encourage you to have the vehicle taken to your preferred dealer for proper inspection and assessment. Rest assured that your vehicle is covered by a 3-year/100,000 km warranty and should an issue related to a defect be found, we will be more than glad to address this under the terms of your vehicle’s warranty. You may contact the Service Department of your nearest dealer, Toyota Marikina Service Station at 981-6000 and feel free to speak with any of our Service Advisors to schedule an appointment.



We hope you find this information helpful. If you need immediate assistance, simply reply to this message or call us at 819-2912.



Again, thank you for contacting Toyota Motor Philippines.



Very truly yours,

REYMAN C. VIADOY

Customer Relations Officer

Customer Relations Department

Marketing Division

TOYOTA MOVING(Rw_gray)

TOYOTA MOTOR PHILIPPINES CORPORATION

Makati Office 31st Floor GT TOWER INTERNATIONAL,

6813 Ayala Ave. cor H.V. Dela Costa, Salcedo Village,

Makati City 1227

Email: reyman.viadoy*toyota.com.ph
Contact: +632 819-2912

Fax: +632 819-2921

Neutral answer, nothing exciting

[OTEP]

I would think its not the aircon itself that is at fault. The rear ac does not draw air from outside the vehicle. However if odors enter the cabin via holes in the floor or through the weather seals and it gets sucked by the ac blower located in the quarter panel, it will give the impression that the odor is travelling via the ac system.

The rear rubber flaps are gravity and pressure operated. If the manufacturerof that part (Toyota doesnt make them) supplies a part which allows air in (it supposed to act as a one way valve), then it will allow odors to enter when the vehicle is at a standstill. And ues that includes even the innovas own emissions,

[darkmatter269]

sa E variant na kagaya ko may maual switch sa harap na pwede mo papasukin yun hangin sa loob using front aircon..pag G at V variant electronic yun.. Hindi ako naniniwala na rear aircon yun..havent experience yet on my innova e variant....

[MrQ5]

baka yung mga nakakaranas nito hindi air tight ang closing ng rear door. just guessing.
minsan ko lang naranasan ito kakatakbo lang at nadaan sa estero, di ko alam kung sa pagliko ko lang.

Posted via Tsikot Mobile App

[jhune garcia]

up lang mga boss

[matt chua]

different experience po sa 2012 innova E namin.

kahit patay yun rear aircon, pumapasok parin yun amoy usok (jeep/bus in front when traffic) at kapag napapadaan sa may pasig river (boni-rockwell bridge). although hindi sobra tindi ng amoy like kapag naka-window down, but ma-distinguish parin na pumasok yun amoy.

Yun lever for air vent is always naka-set sa Recirculate mode.

tinry ko one time, before umakyat ng bridge, turn-off aircon both front at rear, then hanggang sa makalampas ng bridge... walang amoy (good)...
but once I opened only the front aircon again, ayun amoy ilog na mabaho (bad)... parang naipon ata yun amoy somewhere sa engine bay or sa may vent under the wiper cowl...

may nakapag-try na ba dito i-completely seal yun air vent under the wiper cowl? san pwede ito ipagawa?

[matt chua]

natakapan ko na pala yun 5 holes underneath sa may rear bumper... kaso sa case ng innova namin, parang sa harap pumapasok yun amoy usok...

[MrQ5]

ang alam ko kahit anung car, ang design ng a/c may small percentage ng fresh air kahit recirculate mode. pero bihira may pumasok ng mabahong amoy wag lang yung usok ng nagsisiga, sa bukid or sctex.

[number001]

ang alam ko kahit anung car, ang design ng a/c may small percentage ng fresh air kahit recirculate mode.

I agree and an example is the Subaru Forester. You will really notice it. Yes even with recirc button on.

But our Fortuner and Innova has none of this problem of foul air entering through the front vents. Yes with recirc button on.

On the Innova, the foul smell really comes from the ceiling air vents. Its directed towards me so I can really smell the smoke as the air hits my face. Once I smell it, I immediately turn off the rear a/c. Smoke smell weakens and eventually dissipates.

Another example. When travelling along Manila Pier to Navotas, you can smell the putrid smell coming inside through the rear vents.

[kristine123]

I agree and an example is the Subaru Forester. You will really notice it. Yes even with recirc button on.

But our Fortuner and Innova has none of this problem of foul air entering through the front vents. Yes with recirc button on.

On the Innova, the foul smell really comes from the ceiling air vents. Its directed towards me so I can really smell the smoke as the air hits my face. Once I smell it, I immediately turn off the rear a/c. Smoke smell weakens and eventually dissipates.

Another example. When travelling along Manila Pier to Navotas, you can smell the putrid smell coming inside through the rear vents.

Na solve mo ba problema dito sir?

[number001]

Na solve mo ba problema dito sir?

Its a design flaw. I don't think it can be solved. :D

[matt chua]

I agree and an example is the Subaru Forester. You will really notice it. Yes even with recirc button on.

But our Fortuner and Innova has none of this problem of foul air entering through the front vents. Yes with recirc button on.

On the Innova, the foul smell really comes from the ceiling air vents. Its directed towards me so I can really smell the smoke as the air hits my face. Once I smell it, I immediately turn off the rear a/c. Smoke smell weakens and eventually dissipates.

Another example. When travelling along Manila Pier to Navotas, you can smell the putrid smell coming inside through the rear vents.

Thanks sir number001 for sharing your experience.

Sa innova E namin, hindi recirculate button, lever type siya. Kahit naka-set sa recirculate, pumapsok parin amoy usok at ibang amoy sa front aircon. I tried na patay yun rear aircon the whole trip, kapag naka sunod ka sa bus/jeep na mausok papasok yun amoy.

Parang hindi ata lapat ng maayos yun cover sa front air vent. Pero kahit i-open/close ko yun recirculate lever, ganun parin, may pumapasok parin.

Plan ko tuloy patakpan na yun front air vent sa ilalim ng wiper cowl. May ma-suggest ba kayo na shop kung saan pwede patakpan yun? Along QC/Sta. Mesa if meron.

Thanks!

[kristine123]

Thanks sir number001 for sharing your experience.

Sa innova E namin, hindi recirculate button, lever type siya. Kahit naka-set sa recirculate, pumapsok parin amoy usok at ibang amoy sa front aircon. I tried na patay yun rear aircon the whole trip, kapag naka sunod ka sa bus/jeep na mausok papasok yun amoy.

Parang hindi ata lapat ng maayos yun cover sa front air vent. Pero kahit i-open/close ko yun recirculate lever, ganun parin, may pumapasok parin.

Plan ko tuloy patakpan na yun front air vent sa ilalim ng wiper cowl. May ma-suggest ba kayo na shop kung saan pwede patakpan yun? Along QC/Sta. Mesa if meron.

Thanks!

Paayos mo na lang sir, wag mo ipatakpan para may option ka. Sa akin 2005 Innova ay walang problema sa front, Sa rear pumapasok ang amoy.