Toyota Innova Gas Tank woes

[markduguran]

Do not be alarmed bro,- our Honda car also has that. I also experience that with our 08 Innova. The gasoline tank is pressurized (higher pressure than the atmosphere) and so air coming out of the tank should be normal.

From what I've read, and I need to do some research,- the culprit is the charcoal canister... And based on the separate experiences of Sis Kristine and bro.cast_no_shadow,- if it is ticking, then it is defective and could cause the tank to warp and eventually leak....

16.4K:bond:

Bro, In my case Air is comming IN the tank that is why I am alarmed. I think Only Petron Blaze is the only pure gasoline (not blended with ethanol) being sold here. Pero hindi ko pa siya nasubukan. since ni release ung innova namin petron extra unleaded lang pinapa karga ko. I try ko i check ung filler cap mamaya pag uwe ko. baka marumi din. so aling part ang culprit?

Filler cap?
Charcoal canister?
Fuel tank assembly?

As experienced lahat ng sasakyan sa family(both efi and caburated) lahat sila puro POSITIVE pressure or when you open the filler cap...air is comming out of the tank.

1992 Toyota Corolla 1.3(carb) - Mine
2001 Toyota Revo 2.0(efi) - My Uncle's
2003 Toyota Revo 1.8(efi) - My Father's
2010 Honda Civic 2.0(efi) - My Uncle's

Lahat sila POSITIVE pressure ang meron...bukod tangi ung innova namin ang pahigop pag binuksan filler cap.

[CVT]

Madali mo namang malaman kung air/(actually vapor) is coming out of the tank...

Amoy gasolina from a distance when you remove the fuel cap...

Ang sabi sa article,- the canister works when you turn off the engine...

The canister goes unused until the car is turned off again.

Further,- walang breather ang tank filler cap,- dahil nga dapat trapped ang fuel vapor at ia-absorb ito ng canister when you turn off the engine, and then ipu-purge out when you start the engine... (Please refer to the previous article I posted)

An evaporative control system was developed to eliminate this source of pollution. The function of the fuel evaporative control system is to trap and store evaporative emissions from the gas tank and carburetor. A charcoal canister is used to trap the fuel vapors. The fuel vapors adhere to the charcoal, until the engine is started, and engine vacuum can be used to draw the vapors into the engine, so that they can be burned along with the fuel/air mixture. This system requires the use of a sealed gas tank filler cap.

So, the system requires a sealed gas tank filler cap....

16.4K:bond:

[cast_no_shadow]

Thats a relief, thanks CVT. Saken papalabas yung hangin, parang nag exhale normal lang pala yun?
Even my gas tank warped last time i haven't experienced na papaloob yun pasok ng hangin.
Ako most of the time shell super unleaded pinapagas ko, next option is petron extra unleaded.

[cast_no_shadow]

I've been experincing higher NEGATIVE pressure lately. Even my brother who was closing the gate 5 meters away heard the "wooooooooooooooeeessss" sound. though hindi ko muna tinignan ung tank kung may warping. the "wooooooooooooooeeessss" sound is alarming.

2012 model Vvti ung ride ko.
2months since na release and 2,000Km pa lang milage.
No tiktik sound on the canister
Have white handwritten markings on the visible side of the tank "0144XX"

Bro sure ka papasok sa loob yung hangin? hindi papalabas?

[markduguran]

Bro sure ka papasok sa loob yung hangin? hindi papalabas?

Yes Bro 100% sure. at hindi lang basta simpleng higop. nitong dalawang huling bukas ko (just after parking the car in the garage) sobrang lakas. sabi nga ng utol ko nung sinasarado nya ung gate "kuya ano un?"
Ma ramdaman mo sa kamay mo ung higop ng hangin nya.

[kristine123]

Even my gas tank warped last time i haven't experienced na papaloob yun pasok ng hangin.

How come nag warp ang Gas tank mo kung papalabas ang hangin? dapat lumobo ang gas tank mo.

[kristine123]

Yes Bro 100% sure. at hindi lang basta simpleng higop. nitong dalawang huling bukas ko (just after parking the car in the garage) sobrang lakas. sabi nga ng utol ko nung sinasarado nya ung gate "kuya ano un?"
Ma ramdaman mo sa kamay mo ung higop ng hangin nya.

bagong linis ang Fuel Cap ko... gamit ko ang Innova kanina, long run... NAG WARP NA NAMAN...pag open ko ng CAP papasok na naman ang hangin. NO LUCK!!!!

[kristine123]

Sir mile, pwede po pa explain paano ang DIY ng charcoal canister. Di po ba delikado gawin to? baka magkalat tayo fuel?
pansin ko sa isang hose ng charcoal parang papunta man yun sa baba left wheel parte yung hose na walang clip. di kaya barado yun? breather ba yun ng charcoal canister?

[nicnoc]

bagong linis ang Fuel Cap ko... gamit ko ang Innova kanina, long run... NAG WARP NA NAMAN...pag open ko ng CAP papasok na naman ang hangin. NO LUCK!!!!

Wah..may issue na rin po kyo sa canister..ngayun lng po ako naka pag online..the new fuel filler cap is the same as the old..no changes as per your pictures posted even the part number is the same..ma'am wag mu na po kyo mag full tank as a precaution para d mabutas ang tanke..

[kristine123]

Wah..may issue na rin po kyo sa canister..ngayun lng po ako naka pag online..the new fuel filler cap is the same as the old..no changes as per your pictures posted even the part number is the same..ma'am wag mu na po kyo mag full tank as a precaution para d mabutas ang tanke..

di po kasi ako nag fufull tank, once lang ako nakapag full tank. bad trip nga ako...

Musta po sir ang Innova nyo sir? no more whooooooooesss?

sabi kasi ng iba mas malaki na daw ang butas ng bagong fuel cap compare sa old...



pansin ko dito sa image ano kaya itong

77269A HOSE, FUEL TANK BREATHER
77179A GASKET, FUEL TANK BREATHER TUBE
77018E TUBE SUB-ASSY, FUEL TANK EVAPORATION VENT

ToyoDIY.com

[nicnoc]

Mga sir, before replacing my canister, nag suck sya ng air after opening the fuel cap..what i do is slowly open it para syang nag whistle paluob para dahan dahan yung inflate ng tanke ko....malakas yung vacum talaga.. Imagaine, naka full tank/half tank ka pa..tapos mabigat yung tanke mu then a gasboy just crack it open..magkakaroon ka talaga ng crack sa tanke in the long run


Ang alam ko d soleniod type ang canister natin..walang electrical connection eh..may charcoal lng sya sa loob and once u shake it you can hear the beads of charcoal... Mas maganda yata yung soleniod type mas matibay..pede ba yun sa hilux/fortuner i lagay sa innova natin?

[nicnoc]

di po kasi ako nag fufull tank, once lang ako nakapag full tank. bad trip nga ako...

Musta po sir ang Innova nyo sir? no more whooooooooesss?

sabi kasi ng iba mas malaki na daw ang butas ng bagong fuel cap compare sa old...



pansin ko dito sa image ano kaya itong

77269A HOSE, FUEL TANK BREATHER
77179A GASKET, FUEL TANK BREATHER TUBE
77018E TUBE SUB-ASSY, FUEL TANK EVAPORATION VENT

ToyoDIY.com

If i am not mistaken..the 77269A HOSE, FUEL TANK BREATHER goes to the canister..if correct this could be disconnected to the canister and just let the fuel vapor flow out continously..tataas lng yung fc mu kasi it should trap it and pushed it back to the tank to be burned

[nicnoc]

If i am not mistaken..the 77269A HOSE, FUEL TANK BREATHER goes to the canister..if correct this could be disconnected to the canister and just let the fuel vapor flow out continously..tataas lng yung fc mu kasi it should trap it and pushed it back to the tank to be burned

Add ko lng..ma'am kristine..wala na po yung sound..bale bumyahe po ako sa pangsinan nung weekend after replacing my canister..i did my full tank of course.. I was expecting 1/4 na lng matitira sa full ko..but indi..almost half pa sya..going to alaminos...i was avaraging 12.9 sa mid..im happy kasi yan na pinaka mattas kung nakuha for ilang years years nah

[kristine123]

Add ko lng..ma'am kristine..wala na po yung sound..bale bumyahe po ako sa pangsinan nung weekend after replacing my canister..i did my full tank of course.. I was expecting 1/4 na lng matitira sa full ko..but indi..almost half pa sya..going to alaminos...i was avaraging 12.9 sa mid..im happy kasi yan na pinaka mattas kung nakuha for ilang years years nah

at yung tank mo walang deformation after driving long run Sir Nic? sa casa mo po pinapalitan or DIY? nakita mo silang nag palit?

meaning gumanda ang FC mo after replacing the canister and the cap?

Anong comment nyo po pag mag order dito sa Search for Genuine Parts - Amayama Trading

[nicnoc]

at yung tank mo walang deformation after driving long run Sir Nic?

Ma'am kristine..yung tank ko deformed na talaga ..wala napo yung leak after the weld

sa casa mo po pinapalitan or DIY?

sa carzone ko pinagawa pati yung pag replace ng canister...pero we can actually replace it ourselves...madali lng talaga

nakita mo silang nag palit?

yap..nandun po ako nung pinalitan..all you need is just a pliers

meaning gumanda ang FC mo after replacing the canister and the cap?

The canister has a factor that could relate to our our FC

Anong comment nyo po pag mag order dito sa Search for Genuine Parts - Amayama Trading

d pa po ako naka pag try mag order sa amayama pero i do recommend buying here in manila and asking someone to send it to you via LBC

thanks thanks

[nicnoc]

another good read..on the fuel cap and the canister

Total Automotive Technology - Anthony E. Schwaller - Google Books


Shot at 2012-07-30

[nicnoc]

[Mile2]

If i am not mistaken..the 77269A HOSE, FUEL TANK BREATHER goes to the canister..if correct this could be disconnected to the canister and just let the fuel vapor flow out continously..tataas lng yung fc mu kasi it should trap it and pushed it back to the tank to be burned

correction lang sir, 77269A goes to the Filler Port breather hole. If you remove your Filler Cap you'll see a small inlet inside the large inlet for gasoline tube. The small inlet hole is the breather hole from the tank.

[nicnoc]

W

correction lang sir, 77269A goes to the Filler Port breather hole. If you remove your Filler Cap you'll see a small inlet inside the large inlet for gasoline tube. The small inlet hole is the breather hole from the tank.

Ayun..thanks sir mile for the correction..

[nicnoc]

Ma'am Kristine, please update po dun sa issue nyo. Thanks.