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smokes when i come to a stop.

 
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Old 09-05-2011, 05:59 PM
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smokes when i come to a stop.

I have a 1997 Honda Prelude with 160k miles on it. I haven't had this car for to long, and all of a sudden white smoke has started coming out of the tailpipe when coming to a stop. I have never noticed this car to smoke at any other point. The only time I see smoke is when I come to a stop(stop light or drive thru). Also i have noticed while in the drive thru the temp will go up a bit, I have been told this is normal, because when i begin driving it goes back down. I have looked around on this problem and haven't found much. From what I have read It could be a blown head gasket, rings, etc. Since it could be these should I take my car to get a Compression, and leakdown test? Any help is GREATLY appreciated, thanks.
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Old 09-05-2011, 06:03 PM
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Re: smokes when i come to a stop.

also it seems to use a lot of gas, but idk.
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Old 09-05-2011, 06:54 PM
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Re: smokes when i come to a stop.

does it smell at all?
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Old 09-05-2011, 10:29 PM
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Re: smokes when i come to a stop.

compression test will tell you if it's piston rings
leak down test will tell you if it's head gasket

we can't tell you what it is from your description so do the tests. If you have to ask how, just take it to a mechanic.
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Old 09-13-2011, 12:18 AM
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Re: smokes when i come to a stop.

no updates? i have the same problem
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Old 09-13-2011, 10:09 PM
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Re: smokes when i come to a stop.

So this is from experience from the DSM's I rebuild a lot.
White smoke means coolant is burning, which there are usually only a couple ways in forced inducted vehicles that, that can happen. Of course these are not turbo from factory so this is my opinion. The white smoke is coolant, with that being said I'd say it burning in the combustion chamber means its leaking into it. So I'd say right away that it's the head gasket.
You should do a leak down test to confirm but I'd say that is the issue. The biggest concern you should have is if the coolant is leaking into your oil too. If it is, you need to stop driving it and replace the head gasket asap.
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Old 09-13-2011, 10:35 PM
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Re: smokes when i come to a stop.

Mine was doing the same thing, well it just started smoking , but I was loosing coolant and it was causing my IAC valve to go crazy causing my idle to surge. The white smoke should have a sweet smell to it--coolant burning. That is what was a dead give away for me. I just ripped the head off on sunday and sent it out to a machine shop yesterday.
Its a big job, I'm doing all the labor myself and I'm already up to $600, between, machine work, head gasket set, valve seals, complete valve job, and fuel filter-(since it's right there)
It's gonna cost WAY more if you go to the dealer!
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Old 09-27-2011, 09:22 AM
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Re: smokes when i come to a stop.

I appear to be having the same issue. The smoke is very subtle but it's definitely there when I come to a stop...
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Old 09-27-2011, 09:57 AM
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Re: smokes when i come to a stop.

drain your oil, and see if it looks like chocolate milk. if it does.... start praying.
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Old 09-27-2011, 03:01 PM
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Re: smokes when i come to a stop.

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Originally Posted by twokexlv6coupe View Post
drain your oil, and see if it looks like chocolate milk. if it does.... start praying.
This.
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Old 09-27-2011, 04:01 PM
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Re: smokes when i come to a stop.

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Originally Posted by 98__SH View Post
This.
explanation please?
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Old 09-27-2011, 07:25 PM
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Re: smokes when i come to a stop.

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Originally Posted by twokexlv6coupe View Post
drain your oil, and see if it looks like chocolate milk. if it does.... start praying.
That only happens if the coolant leaks through the headgasket and gets into the oil passages, and mixes coolant and oil together (chocolate milk) That's when its leaking real bad. When they usually first start to go, the coolant leaks from the coolant passages directly into the cylinder and combustion chamber. That is why you get the white sweet smelling smoke. At least this was the case in my situation.VVV See the link below. Have pictures! VVV


Blown head gasket- should I replace rings while its apart?
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Old 09-28-2011, 12:04 PM
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Re: smokes when i come to a stop.

if it smells sweet its coolant being burned. I would leak test your motor asap before you let a head gasket ruin your day..or in this case, your motor.
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Old 09-28-2011, 02:09 PM
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Re: smokes when i come to a stop.

ok so I'm pretty sure with 95%+ confidence that I was high or something and everything is ok with my car. I only noticed the "white" smoke (if you'd even call it that) in the early AM hours, which I attribute to normal exhaust being expelled from the pipe. It's starting to cool off here a little, particularly in the morning, and that's the only time I've noticed it.

Also, a co-worker of mine who knows Hondas inside and out for 20+ years came down and looked under the hood with me and under the car. We don't suspect any issues. I'll post pics at some point, but I think I was just being a little over-protective of my newly-acquired Lude :)

FWIW, I got an oil change this AM and told them to double check for any coolant leaking into the oil and it was not the case. Came back completely clean. A couple of the techs at the shop were asking where I got my Lude, how clean it was, etc.

Cheers,
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Old 09-28-2011, 02:21 PM
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Re: smokes when i come to a stop.

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Originally Posted by ATLude View Post
ok so I'm pretty sure with 95%+ confidence that I was high or something and everything is ok with my car.
You must be smokin some of that good stuff!! lol
No, you are prob right, it is normal for some smoke to come out of the tailpipe in the morning, especcialy if it is cold.
As long as your not loosing any coolant you are prob OK.
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