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GM Decarbonizer

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Old Aug 19, 2005 | 02:24 PM
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I noticed the Tech note on this stuff. I'm curious if it does any good and when do they recommend using it, etc., etc.?
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Old Aug 19, 2005 | 03:02 PM
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Sea Foam works just as good and you can get it at O'Rielly, Auto zone etc. Do a search for Sea Foam on the forum and you will see some of the posted results to include mine.
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Old Aug 19, 2005 | 03:19 PM
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Sea foam is the scariest stuff in the world. Do you have a whole bunch of miles on your car?
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Old Aug 19, 2005 | 03:56 PM
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Originally Posted by Ducman69
Sea foam is the scariest stuff in the world. Do you have a whole bunch of miles on your car?

now why do you say that?
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Old Aug 19, 2005 | 04:24 PM
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Originally Posted by Ducman69
Do you have a whole bunch of miles on your car?
Yeah...I can't believe it myself, but recently turned 100K. I like driving my car.

Starting to think about a rebuild/LS2 crate motor options, etc., but the car still runs very strong and would like to do as much as I can to keep the insides clean until then. Therefore, wondered if this junk (or junk like it) really works or if it's only snake oil.
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Old Aug 19, 2005 | 05:25 PM
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I thought seafoam was that stuff that you suck into your engine from a vacuum line, and it then creates a huge cloud of smoke, causing birds and insects to start dropping from the sky littering your lawn... and then you hear sirens blaring as a firetruck comes to a screeching hault in your driveway, that you later found out the neighbors called because they thought you perished in an engine fire after you disappeared from view in the fog.

Last edited by Ducman69; Aug 19, 2005 at 05:36 PM.
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Old Aug 19, 2005 | 11:44 PM
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Originally Posted by Ducman69
I thought seafoam was that stuff that you suck into your engine from a vacuum line, and it then creates a huge cloud of smoke, causing birds and insects to start dropping from the sky littering your lawn... and then you hear sirens blaring as a firetruck comes to a screeching hault in your driveway, that you later found out the neighbors called because they thought you perished in an engine fire after you disappeared from view in the fog.

yep, thats the stuff
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Old Aug 19, 2005 | 11:51 PM
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Thanks for all the comments, but can someone answer my original question?
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Old Aug 20, 2005 | 12:23 AM
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like I said before, type in "seafoam" in the search tab. There are a lot of longer informative write ups on it.
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Old Aug 20, 2005 | 02:18 AM
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Originally Posted by dragon84
like I said before, type in "seafoam" in the search tab. There are a lot of longer informative write ups on it.
No...you hadn't mentioned it, but thanks, gotta use the search function more often I guess. Sounds like great chit and I'm sure MY car will benefit greatly. Can't wait to smoke up the place!
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Old Aug 20, 2005 | 07:46 AM
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Originally Posted by dragon84
Sea Foam works just as good and you can get it at O'Rielly, Auto zone etc. Do a search for Sea Foam on the forum and you will see some of the posted results to include mine.

look alittle closer my friend . It really does work pretty well. Results vay, but it does seem to clean something out.
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Old Aug 20, 2005 | 08:21 AM
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Top end cleaning procedure...

decarb it

I had a ton of black soot come out afterwards but I have seem a post where the heads were removed afterwards and there was a noticable difference. The carmalize crud was gone. Most folks claim the engine ping disappears afterwards as well. But you should do whatever you can to prevent it with a PCV oil catch can. Otherwise it will just re-develope soon after the cleaning.

Last edited by IM QUIKR; Aug 20, 2005 at 08:25 AM.
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Old Aug 20, 2005 | 09:23 AM
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BG44K every 20k miles, whatever it don't get, I can live with.
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Old Aug 21, 2005 | 12:12 PM
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Default GM decarbonizer

I used a GM product called ,fuel system treament,cleans carbon deposits from carbs,fuel injectors,intake valves,ports & combustion chambers.Part #12345104.I had a carbon build-up that you could smell when the car was parked in the garage.Dealer highly recommended it and it did help my problem.
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Old Aug 21, 2005 | 12:26 PM
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I found SeaFoam at a local NAPA store. I used it and noticed an immediate improvement in smoothness throughout the RPM range and idle.
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Old Aug 21, 2005 | 12:46 PM
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Originally Posted by Ducman69
I thought seafoam was that stuff that you suck into your engine from a vacuum line, and it then creates a huge cloud of smoke, causing birds and insects to start dropping from the sky littering your lawn... and then you hear sirens blaring as a firetruck comes to a screeching hault in your driveway, that you later found out the neighbors called because they thought you perished in an engine fire after you disappeared from view in the fog.
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Old Aug 21, 2005 | 09:57 PM
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Originally Posted by Get a Vet
I noticed the Tech note on this stuff. I'm curious if it does any good and when do they recommend using it, etc., etc.?
Don't get talked into this stuff too fast.

My experience has not been positive. My car is a 2001 Z06. It normally lives in the Houston area and runs fine on 93 octane premium. Last summer I took it on a long cross country (5500 mile) trip and it pinged like crazy on the 91 octane fuel available in several states. After the trip, a local dealer insisted the problem was carboning of the heads. I did not agree, and after long discussion with the service manager, I let him do two decarbons of the top end of the engine. Although he swore it would cure the pinging, it did not. So he agreed that I did not owe him a cent. He said he cannot solve the problem, so it must be NORMAL for the Z06 to ping like crazy at part and full throttle on 91 octane fuel.

My advice is that if you do go for the decarbon, change your oil immediately. My dealer did not do this. Consider changing your spark plugs as well.
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Old Aug 21, 2005 | 10:42 PM
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Yes yes.....change your oil immediately after decarbing the car! You don't want gunk floating around in your system for too long. I plan on decarbing my 01 Z06 this week and an oil change right after. Time for a smoke show!
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Old Aug 21, 2005 | 10:47 PM
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Originally Posted by Z.06
Don't get talked into this stuff too fast.

My experience has not been positive. My car is a 2001 Z06. It normally lives in the Houston area and runs fine on 93 octane premium. Last summer I took it on a long cross country (5500 mile) trip and it pinged like crazy on the 91 octane fuel available in several states. After the trip, a local dealer insisted the problem was carboning of the heads. I did not agree, and after long discussion with the service manager, I let him do two decarbons of the top end of the engine. Although he swore it would cure the pinging, it did not. So he agreed that I did not owe him a cent. He said he cannot solve the problem, so it must be NORMAL for the Z06 to ping like crazy at part and full throttle on 91 octane fuel.

My advice is that if you do go for the decarbon, change your oil immediately. My dealer did not do this. Consider changing your spark plugs as well.
You should consider having a tuner tweek your computer with LS1 Edit and change the timing and AFR, etc. I don't think you should run it for too long pinging like that, it can't be good for it.
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Old Aug 22, 2005 | 08:36 AM
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Originally Posted by Z.06
Although he swore it would cure the pinging, it did not. So he agreed that I did not owe him a cent. He said he cannot solve the problem, so it must be NORMAL for the Z06 to ping like crazy at part and full throttle on 91 octane fuel.
So fricking typical! Except for tbe part of him not charging you. That had to break on of GM's laws of acquisition, somewhere! :

Good story though
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