[Shrillmill]

when I drive on the highway and then like get off and stop and go again my car makes big clouds of smoke.
and smells like ass.
Its an auto.

Yea....
Its been doing it for a while...

Maybe bent valves?

[EagleEyez]

Originally Posted by Shrillmill

when I drive on the highway and then like get off and stop and go again my car makes big clouds of smoke.
and smells like ass.
Its an auto.

Yea....
Its been doing it for a while...

Maybe bent valves?

Ha, your car wouldnt run.

Is that all the info you can write and give us? You cant tell time of day? Was your car cold or hot? Did it lose power? White smoke or black smoke? Did it smell sweet or burnt? Were you at 100% throttle? Were you full on oil? Did you have too much oil? Have you replaced your oil recently? Did you look under the hood after? See anything unusual? Any lights on dash? How many miles on the car? See any fluid on the ground? Do you maintain it or just drive it? BE HONEST!!!

What info you did give leaves us at nothing but guessing and you could do that just the same.

[rudeludebb6]

Originally Posted by EagleEyez

Ha, your car wouldnt run.

Is that all the info you can write and give us? You cant tell time of day? Was your car cold or hot? Did it lose power? White smoke or black smoke? Did it smell sweet or burnt? Were you at 100% throttle? Were you full on oil? Did you have too much oil? Have you replaced your oil recently? Did you look under the hood after? See anything unusual? Any lights on dash? How many miles on the car? See any fluid on the ground? Do you maintain it or just drive it? BE HONEST!!!

What info you did give leaves us at nothing but guessing and you could do that just the same.

damn do you have a flashlight in his face when you ask all this???

[Shrillmill]

I had just gotten off work when i wrote that tired.

car has 14x,xxx miles. did oil like 1200 miles ago.
Its been doing it for a few months.
But not always.
It does it maybe 4 times a week.
When I drive on the hwy like 80 or so.
and then come to a stop and start to go again it smokes
it smells rich.
Its white smoke.
Not alot to make a big cloud but to make a trail.

[JLude]

Do you check your oil level at least every 300 miles? YES you need to on the H22 motor! White smoke is either oil or coolant. Could be a lot of things: Headgasket, bad ring seals, etc. Best to do a compression test after you verify that you aren't leaking fluids.

[psud3ity]

My slushbox would smoke after I parked my car right before it died...

[migoreng]

blue smoke after deceleration, when starting, taking off = worn valve stem seals?

[Nismo2Honda]

Mine does the same, I've noticed recently It smokes sometimes. when I get going from a light. I don't pay any mind to it, Car still runs and pulls hard so ehhhh.

[bb6ryder]

it could b alot of things might b the gromets in the vc seals leakin oil in to the spark plugs

[migoreng]

could be oil gradually being sucked through the pcv valve?
i smoke for a few seconds at the light sometimes, usually after some hard driving...and it stinks

FYI i've taken my pcv valve out a few times and it has always been covered in oil..looks like bits of oil can easily get sucked up during high pressure/vacumm...the rubber grommet is also covered in a thin film of oil.

i might DIY a catch can later which i haven't been bothered to do for the last 6 month or so =_=

[Shrillmill]

I check my oil all the time.
Like every other day or so.
The coolant is full.
Um.
Maybe is oil threw the pcv.?

Maybe is rings.

Ugh.

I guess more reason to drive it till it stops working right....

[5thgenftmfw]

White smoke.......... = coolant being burned through the exhaust.

Right?

If so.. Then the #1 culprit for coolat burnage is headgasket.

[migoreng]

Originally Posted by 91OEMLude

White smoke.......... = coolant being burned through the exhaust.

If so.. Then the #1 culprit for coolat burnage is headgasket.

when people say headgasket problem is it a major problem or can there be minor head gasket problems?
like is it possible to have a hairline crack that will cause you to loose coolant slowly over a few months or will a car suddenly just billow out white smoke when the gasket cracks?

[JLude]

Originally Posted by migoreng

when people say headgasket problem is it a major problem or can there be minor head gasket problems?
like is it possible to have a hairline crack that will cause you to loose coolant slowly over a few months or will a car suddenly just billow out white smoke when the gasket cracks?

Headgaskets failures can be minor. I've replaced 4 headgaskets on fixer upper Hondas and most of them still ran fine and didn't smoke but coolant was leaking into the cylinder(s) and burning out the exhaust, sucking the radiator dry in about 50 miles! On the Accord I'm working on now there is also some oil getting into the coolant through a failed head gasket.

[Shrillmill]

I dont go threw coolant tho.
Ive only had to put some in once since I got the car.
And it wasnt even alot.

idk.

[migoreng]

need some advice. sorry for the long post but i want to know if there are any fixes at all. like could it be a sensor problem or something else. this smoking has been happening for a while. car is completely stock except for a k&n panel filter.

i'm noticing blue/white smoke puffing randomly usually when i come to a stop from cruising or getting back on the throttle after engine braking (overrun?)
my car goes through around 1/3quart of oil (10w40 synthetic) every 600miles or 200-300ml/1000km...

the car still makes good power, has good fuel consumption and coolant level is fine.
no blue/white smoke puffs out when i start the car in the mornings and no smoke after idling for a few minutes.

i did a test today...i was cruising down the highway at 110kph in 5th for the last 10-15mins...so i slow down to 90-100kph and downshift to 4th and engine brake for around 10 seconds. i down shift to 3rd, slow to around 50-60kph and give around 15-20% throttle...no blue/white smoke in my rear view.

i cruise down the road normally around 60kph in 4th and let go of the throttle for a few seconds and step on it. no smoke visible in the rear view. i do it once or twice more and then notice a puff of white smoke rise above the rear wing.

i do it 3 or 4 more times while still maintaining a speed of 60kph and only managed to make the exhaust puff a cloud white smoke once more.

other times i would stop at the lights and there's a cloud of white smoke that reaches my door but that's very rare.

sometimes i would slow down using engine braking, lights turns green, i shift into second, give a decent amount of gas and shoot out a small cloud of blue smoke that lingers around for 2-3 seconds.

i did my 200,000km service 4000km ago. changed timing belt, waterpump, tensioner and all oil seals. compression test was fine. i think the second cylinder was 178psi. the rest were between 180-185psi. mechanic said my valve stem seals were fine.

[DmansLude]

So did u even replaced the pcv valve yet? I mean with honda oem not the cheap aftermarket one(I got the cheap one at Kragen and the smoke got worse). Because pcv valves do wear out over time.

[MommysLittleMonster]

Do you always have to engine break? That's probably a large part of why your car is smoking excessively. Also, why are you running 10w-40? 10w-30 is what you SHOULD be running, synthetic too...

[migoreng]

i have been using an aftermarket pcv valve for the last year(20,000km). it's brown/black but don't know what brand but it looks cheap. it cost me around 1/4 of the price of a genuine pcv valve.

i roll in gear when i'm not accelerating as no fuel gets injected? when i'm approaching a turn i usually downshift 1 or 2 gears and i roll in gear to the lights.

why would engine braking cause excessive smoke and how do you guys usually use the gears when rolling to the lights/corner or rolling down a long hill?

my car has 200,000km and everyone recommends 10w40 max. that's why i'm using it.

[DmansLude]

Engine braking will cause increased manifold vacuum (due to closed throttle but the rpm is still high so the cylinders still take in more air than the IAC can provide) So, the pcv valve is another short way for the manifold to get air in. The pcv is actually a two way valve. When there is too much vacuum, it will close itself. But if there is high pressure in the manifold(due to backfire), it will also close itself. But the point is it can only do that a few times before the spring inside is weaken and start letting everything in or out including a lot of oil.

BTW. I have 188k miles (about 300,000 km) on my 98 and i still use 5w-30 with no problem, not even burning oil. How hot is it over there though?

[KraserK]

Originally Posted by DmansLude

Engine braking will cause increased manifold vacuum (due to closed throttle but the rpm is still high so the cylinders still take in more air than the IAC can provide) So, the pcv valve is another short way for the manifold to get air in. The pcv is actually a two way valve. When there is too much vacuum, it will close itself. But if there is high pressure in the manifold(due to backfire), it will also close itself. But the point is it can only do that a few times before the spring inside is weaken and start letting everything in or out including a lot of oil.

BTW. I have 188k miles (about 300,000 km) on my 98 and i still use 5w-30 with no problem, not even burning oil. How hot is it over there though?

wow that is some valuable information! thank yo alot! I hope to get my lude lasting that long. Im wondering would you have a pic of the pcv valve? I dont get how it has a spring inside of it? I thot the pcv valve was just a tube of plastic

[DmansLude]

Originally Posted by KraserK

wow that is some valuable information! thank yo alot! I hope to get my lude lasting that long. Im wondering would you have a pic of the pcv valve? I dont get how it has a spring inside of it? I thot the pcv valve was just a tube of plastic

Here's the link. It has a diagram of the PCV. http://www.filtercouncil.org/techdata/tsbs/94-2R1.html

[migoreng]

Originally Posted by DmansLude

But the point is it can only do that a few times before the spring inside is weaken and start letting everything in or out including a lot of oil.

BTW. I have 188k miles (about 300,000 km) on my 98 and i still use 5w-30 with no problem, not even burning oil. How hot is it over there though?

i don't get how the spring can weaken? so what's the best thing for me to do?

well we're heading towards summer here so maybe 35degrees celsius max in the middle of the day (95f?)

[DmansLude]

It gets weaken because of the heat. Remember there was a thread of some luder here that made some plastic catch can and it melted and collapsed. Yeah, the oil and vapor are that hot. And when you expose that kind of heat to a small metal spring pretty much constantly it will lose its spring tension over time. I would recommend that u use 10w-30 instead of 40 because that's just a bit thick for an h22.

[pv97lude]

Originally Posted by Shrillmill

when I drive on the highway and then like get off and stop and go again my car makes big clouds of smoke.
and smells like ass.
Its an auto.

Yea....
Its been doing it for a while...

Maybe bent valves?

I seem to have the same problem as you, i also have a auto prelude and its a 97 and has 190xxx miles on the body and about 15xxx on the motor me and my dad rebuilt for a project, but mine seems to be way way worse, i look like a deisel anywhere i go on cold start up and even when its warm?? help?? lol, but once it gets warm it seems.. to be fine, but if i ever look out of my rear view mirror when i hit vtec, black/grey smoke. i will soon try to put a video up once i figure out how. We just recently changed the head gasket because my radiator fluid is literally black, so we flushed it and it stilll has the same problem, black, like oil. so black smoke and black in coolent tank?? linked maybe?? it drives fine, except for i always have a problem with it over heating.