Smoke???

[PaHumBug]

Doh! I got it backwards...

[jsbihn]

Well this was a whitish smoke (almost thought it was from the brakes at first because it didnt seem so much like smoke as dust) and has a smell, though I am not sure if it is oily or not since i can only get it to happen when I cruising for a long person of time on the interstate and then exit off and slow down or stop.

I have read a few things saying that the engine valves might be worn and there might be enough vacuum to pull the coolant through and burn that when coming off a continuous run like that.
Most that have said that was the issue.
So i bought some oil additive to rejuvenate the seals, and we will see.

[Hellz]

what did you see when you popped the hood???

i know if i saw smoke from my vehicle.. i would be all over that bish looking for where the leak is coming from..

from the sounds of it, you should obivously see where the leak is coming from, the side, or the issue...

you may have to crawl underneath the H2 (Crazy.. i know!) to get a better view.

white smoke = water
the only thing with water in it is your washer fluid, and your anti-freeze...

so i would look at your coolant resivior, all the lines connected to it, and to the radiator.

the washer fluid tank might be a pain... but if you have a CAI installed, you might be lucky to see if it is leaking.

when you find out more, let us know....

[IRA51]

Originally Posted by jsbihn

Well this was a whitish smoke (almost thought it was from the brakes at first because it didnt seem so much like smoke as dust) and has a smell, though I am not sure if it is oily or not since i can only get it to happen when I cruising for a long person of time on the interstate and then exit off and slow down or stop.

I have read a few things saying that the engine valves might be worn and there might be enough vacuum to pull the coolant through and burn that when coming off a continuous run like that.
Most that have said that was the issue.
So i bought some oil additive to rejuvenate the seals, and we will see.

Valve Seals / guieds will suck or leak oil maybe ,not antifreez. a bad head gasket or cracked head will leak antifreez. Are you useing oil or antifreeze ? Keep an eye on the oil level and the water level , the one that goes low will be he culprit . bad valve seals /guieds aint going to be fixed by some snake oil aditive. if you expose your cats to antifreeze you will need to repace them .

[jsbihn]

Ok, here is the latest.
Grabbed a bottle of engine seal renew stuff (cant remember the name right now) and mixed it in with the engine oil. The engine was cold and I checked the level before adding the "stuff". The oil level looked good. So I added in the "stuff". Ok it says it takes few days or a few hundred miles to really do what it needs to do, and I am still waiting on that to occur.

Given, based on what IRA51 said, my cats have been sounding like a Krylon spray can be shook up when the engine is running. I am going to try to dump the cats too.

So we shall see.

[IRA51]

FIX THE PROBLEM FIRST OR YOU WILL DESTROY THE NEW CATS . THE RIGHT WAY TO FIX THE BAD VALVE/BAD SEAL/GUID/HEAD GASKET/CRACKED HEAD PROBLEM IS TO TAKE THE HEADS OFF AND SEND THEM TO A MACHINE SHOP TO BE REPAIRED ,OR GET A NEW SET OF HEADS ..

[jsbihn]

ok but who said it is

"BAD VALVE/BAD SEAL/GUID/HEAD GASKET/CRACKED HEAD"

I mean the truck runs fine except when I come off throttle and slow or stop after driving at 80 for 1.5 hours

To me everyone that has had a similar problem whether it be on the H2 or a different car claims bad seals and/or a issue with vacuum (involving the coolant).

I would like to try to fix this issue with the "snake oil" first since alot of others have stated success with it, but if not then sure lets fix it..... just cant see jumping into a HUGE repair bill if it can be fixed cheaper or if it isnt all that (even in my practice, I tend to diagnose my patients with the lesser "what ifs" before I start going after the bigger "what ifs". No need to diagnose for a brain tumor when it could just be a headache from blood pressure. HUGE difference in treatment (cancer - well you know all they go through, headache - oxygen and a pill).

But I appreciate the help and ideas.
I will keep all informed

[jsbihn]

ok heres the latest
the oil additive didnt work. i found out today that there is something drpping from my engine and that is cause the white smoke to appear from behind (because of the forward motion)
I cant tell what the culprit chemical is, but if sitting still and i rev the car for a while there is no smoke, but underneathe i witness something drip drip dripping from the engine area.
(this would explain how once or twice i saw the white smoke come from the front and once or twice i saw it come from the sides)

so i am guess i have an oil leak even though it doesnt have a real oily smell to it, but a chemical smell with a hint of oil. i will try to get under there tonight