Bad smells from exhaust (especially cold start)

[Supra_Fanatics]

don't know y but my kelisa engine bay oso getting hotter not like in 5 years ago, that time after long hours in jam can open the hood locking mechanism without much heat, now it's very2 hot, even the hood holder oso hot like wtf. than my kancil exhaust smell oso got into the cabin but than again i think it's normal coz runnin wit no a-con & windows down. problem is if on the run the smell oso very strong even wit all the wind around. if only can do test to see where the fume came from like those heat vision thingy where different temp shows different colors. i wonder hmmmm

LOL! U need to buy those heat detectors goggles? Like detect body heat
The hood stand is hot most of the time for me. Kelisa also if run for a long time.

Just my main concern is the bad smell from exhaust. Stand behind smell stronger but cant be if front also can smell..

 

[stupidcar]

Bro vr, i've checked the oil level every week or twice a week no oil missing. Maybe i have phobia for that TB clean with WD4D that mech did last time, keep pop ups in my mind that if WD4D sticked at intake manifold will that smell disappear after came out from the combustion chamber?

If it's really running rich, what should i do?

Time to take out the WD40-ed TB and reclean it with TB cleaner.

 

[^pomen_GTR^]

valve seal? i suspect it would be engine oil burning...

 

[stupidcar]

valve seal? i suspect it would be engine oil burning...

But his EO level never drop.

 

[Supra_Fanatics]

Then need to check my engine oil, it cant be as my engine would consider as new now

 

[k0pi]

I think it's normal about the bad fumes. From wat I know... if the fume is kinda itchy to the eyes and stabbing the nose (at first contact with the fume), the engine's running lean AFR... if around stoich, you just tend to smell normal and it takes time before eyes begin to itch and hurt your nostrils... if too rich, already can smell petrol. Exhaust fume also can gather up behind the bumper and undercarriage, making it smell everywhere around the car... especially when the wind is going against the exhaust... but it's best to go to exhaust shop to check for leak especially around exos system flanges and connecting welds, and the flexible at the adjoining cone. Undercarriage leak is bad because exhaust fume may slowly enter the cabin and you're breathing it.

Another way air from engine bay or outside came into the cabin is when you have torn 'daun pisang' (that plastic cover under the fender) + worn out door rubber - which will allow high flow of air circulated under the fender to seep in at the door hinge... AND...
open holes at the firewall... AND the ventilation gate in the aircond blower box couldn't be shut properly (maybe the flap is out of shape).

Hot air around tyre area - probability hot air that being blown by radiator fan collected into the tyre well, or hot knuckle/disc.

 

[Supra_Fanatics]

Mine no smell in the car, just outside the car or driver window fully wind down/ when car door is open. then can smell.

 

[DanzEterna]

change your catalytic converter.

 

[vr2turbo]

But his EO level never drop.

If EO level drop the car will be smoking already.....

---------- Post added at 05:05 PM ---------- 6 hour anti-bump limit - Previous post was at 05:05 PM ----------

change your catalytic converter.

Wah! That one $$$ fly woh!

 

[desmond0318]

change your catalytic converter.

Expansive indeed, hope i find a way to diagnose either the cat.con clogged or not

 

[Supra_Fanatics]

change your catalytic converter.

Serious? Damn! hope nothing serious.

 

[vr2turbo]

Expansive indeed, hope i find a way to diagnose either the cat.con clogged or not

Cat con clogged will have loss of power liao.....

 

[desmond0318]

Cat con clogged will have loss of power liao.....

If really cat.con clogged i might just replace with a midbox

Serious? Damn! hope nothing serious.

Bro SF problem seems like more serious than mine le, engine hot still smells bad >_<

 

[vr2turbo]

If really cat.con clogged i might just replace with a midbox


Bro SF problem seems like more serious than mine le, engine hot still smells bad >_<

Then get more power....hahaha

 

[desmond0318]

Then get more power....hahaha

More FC too haha

 

[Supra_Fanatics]

Ya wor engine hot still got smell, not just morning cold start

Hope nothing wrong...like Desmond say mod it if need to change...

 

[desmond0318]

After cold? Most cars have the smell when its cold.
I think its because its warming up with richer fuel.
And I told its normal.
My hse's Innova and Persona.

Have to update something, after removing the cat.con and replace a resonator for a test, i have to agree with sc, is normal for bad smell at cold start, and cat.con need to reach some temperature for it to do it's job.. Luckily im still have the cat.con checked nothing breaks and nothing clog inside, thinking of reinstall the cat.con back soon, the smell is alot sick and killing the enviroment running without a cat.con

Thanks all brothers for opinion :knuddel:

 

[Supra_Fanatics]

Have to update something, after removing the cat.con and replace a resonator for a test, i have to agree with sc, is normal for bad smell at cold start, and cat.con need to reach some temperature for it to do it's job.. Luckily im still have the cat.con checked nothing breaks and nothing clog inside, thinking of reinstall the cat.con back soon, the smell is alot sick and killing the enviroment running without a cat.con

Thanks all brothers for opinion :knuddel:

Ya man, killing ourselves and the environment without the catcon. I also agree to have it
Love mother nature Minimising the pollution as much as we can.

 

[DanzEterna]

but cat con's lifespan is about 3 yrs only...if not mistaken.

 

[Supra_Fanatics]

but cat con's lifespan is about 3 yrs only...if not mistaken.

means got to replace it then