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92 prelude white smoke?

 
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Old 02-04-2009, 02:30 AM
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92 prelude white smoke?

i have a 92 honda prelude si and there is white smoke coming from my aftermarket exaust but it only produces white smoke when im on the gas flooring it, any suggestions why?
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Old 02-04-2009, 03:28 AM
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Re: 92 prelude white smoke?

I can't remember, I'm pretty sure white smoke = coolant, blue smoke = oil. Might be time for a new head gasket.
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Old 02-04-2009, 06:06 PM
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Re: 92 prelude white smoke?

ok thanks. by the way do you know if the the abs light connectors behind the radio is supposed to be hooked up or pluged into any thing?
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Old 02-04-2009, 06:25 PM
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Re: 92 prelude white smoke?

The one with the little blue plug? No, that's a jumper wire. The only reason it's there is so you can read ABS codes.
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Old 02-04-2009, 08:41 PM
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Re: 92 prelude white smoke?

hmmmm....my car emits white smoke when cold when its warm it doesnt im guessing thats normal ...but changing the head gasket wouldnt hurt
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Old 02-04-2009, 10:20 PM
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Re: 92 prelude white smoke?

good looking out, but yea my car does it even when its warm, so ill just change the gasket. thanks again.
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Old 02-05-2009, 12:28 AM
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Re: 92 prelude white smoke?

white smoke is coolant. and if it does alot upon start up all the time when running then it the head gasket almost every time....

you say so ill just change it out so nonchalantly like its nothing haha

if it is the head gasket then you will need to get the head decked to make the mating surface perfectly square again. it becomes warped b.c its aluminum and it changes shape from the rapid cooling effect from the coolant leaking into the combustion chamber
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Last edited by 94ludeguy; 02-05-2009 at 12:31 AM.
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Old 02-05-2009, 02:11 AM
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Re: 92 prelude white smoke?

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Originally Posted by 94ludeguy View Post
white smoke is coolant. and if it does alot upon start up all the time when running then it the head gasket almost every time....

you say so ill just change it out so nonchalantly like its nothing haha

if it is the head gasket then you will need to get the head decked to make the mating surface perfectly square again. it becomes warped b.c its aluminum and it changes shape from the rapid cooling effect from the coolant leaking into the combustion chamber
hahaha +1 i learned something new today
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Old 02-05-2009, 07:01 AM
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Re: 92 prelude white smoke?

Its normal, but better check the head gasket.
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Old 02-05-2009, 12:31 PM
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Re: 92 prelude white smoke?

Hoppefully your head is not warped....it cost a ton to fix
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Old 02-05-2009, 12:56 PM
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Re: 92 prelude white smoke?

its liek 50 to 100 to get it shaved as long as it can be brought back to specs
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Old 02-05-2009, 09:25 PM
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Re: 92 prelude white smoke?

money is not a big factor so whatever needs to be done will get done. but the white smoke is not there all the time it just emmits white smoke only when im on the gas flooring it and its just like a puff and it goes away. and even then, sometimes it wont emmit smoke when im flooring it. could it be a small leak?
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Old 02-05-2009, 09:29 PM
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Re: 92 prelude white smoke?

I was about to say that's normal-ish with VTEC, but then I realized you have an H23. I wouldn't worry about it too much, but don't procrastinate. Get it checked out.
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Old 02-06-2009, 12:47 AM
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Re: 92 prelude white smoke?

are you sure its white. do you have and black buildup on your bumper.... it is possible that its valve seals if it does it on start up and only full throttle
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Old 02-06-2009, 03:03 PM
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Re: 92 prelude white smoke?

na no black build up at all. i was thinking about getting a new motor dropping the h22 in.
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Old 02-07-2009, 02:37 AM
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Re: 92 prelude white smoke?

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Originally Posted by mysiprelude92 View Post
na no black build up at all. i was thinking about getting a new motor dropping the h22 in.
so what do you have in it now...
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Old 02-07-2009, 02:50 PM
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Re: 92 prelude white smoke?

the h23a1 with 211,000 miles
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Old 02-07-2009, 06:59 PM
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Re: 92 prelude white smoke?

That smoke could be from toasted rings too maybe.

Edit - Especially since it's coming at startup and WoT.
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Old 02-09-2009, 02:57 AM
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Re: 92 prelude white smoke?

Does your engine run hotter than normal?

Example.....after driving approx. 5 miles and the engine at operating temp., can you literally hold your hand on the hood or valve cover, for at least 5 seconds, without it being unbarable?

I know it's a stupid question, but I'm leaning towards the IAT sensor, confusing the ecm that the air coming into the intake may be confusing the ecm, that it's hotter than what it really is. Do you go through coolant rapidly?

If the ecm is telling the engine to run towards a hotter degree, the coolant burns quicker.?. producing more vapor/white smoke.....Just a thought.

When was your last tune up? JC.
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Old 02-09-2009, 03:25 AM
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Re: 92 prelude white smoke?

no, when it reaches operating temp it stays there no overheating, and my coolant is fine also. as far as tune a tune up just oil change coolant flush/new coolant,spark plugs thats it. one more thing i forgot to mention, after the car has reached operating temp going to and from school and home, i turn the motor of and i noticed that there is a little bit of white smoke coming from the vavle cover but its only seen if u take the oil cap of just a little smoke.
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Old 02-09-2009, 03:42 AM
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Re: 92 prelude white smoke?

I'm still saying headgasket needs replaced.
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Old 02-10-2009, 02:01 AM
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Re: 92 prelude white smoke?

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Originally Posted by dbd6604 View Post
I'm still saying headgasket needs replaced.
Yeah, I didn't know it was coming from the valvecover also.
I read to quick, I don't take in all of the info.
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Old 02-10-2009, 10:58 PM
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Re: 92 prelude white smoke?

by the way do u know where to put tranny fluid in at. h23a d.o.c.h 92
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