Hi all,
My truck is suffering from pre-ignition spark knock. I am in need of a heavy duty combustion chamber cleaner.
Just last weekend I wanted to clean my combustion chamber, i intended to buy seafoam but they were sold out so i used B12 Chemtool instead (i actually i think i like this stuff better).
I ran the chemtool thru a vacuum hose to the intake (not the brake booster it was actually a piece of vacuum hose i hooked up to the PCV inlet on the manifold since the hose on my 04 silverado 1500 is plastic i had to remove it and use my own, if that matters)
It was a little bit colder than usual night here in Houston TX, and several hours after doing the cleaning i went and took it for a spin and the spark knock was practically non-existent. 90-95% better. immediatley.
Today, while entering the freeway on-ramp i ran WOT trying to see if there was any spark knock happening and it did come back although this time it was a less "harsh" sounding ping (not so much "TICK TICK TICK" as it was "tshh tshh tshh" sounding) about 50% less harsh sounding than usual.
I know for 100% certainty that carbon in the combustion chamber has artifically raised the compression ratio in my engine causing the spark knock.
That being said, my dad seems to think the spark knock is caused due to "cheap gas" which I do use often, but im still expecting 87 octane which is prescribed for my truck, not to spark knock in the winter, even if its from a "generic" gas station such as "Murphy USA" (walmart)
Long story short: I'm wondering if anyone can reccomend a heavy duty combustion chamber cleaner, perhaps one that takes 30-60 minutes to complete, something I can rig up a system to feed the intake with while leaving the truck at idle so i dont have to worry about it stalling.
Also, i know a lot of people recommend filling up the intake with some solvent then killing/stalling the engine to let the solvent sit and clean or break up the deposits, and while i agree that is probably the best way to do it, i am actually too afraid of hydro-lock to do this, so i'd rather spend the extra money and do 2-3 treatments the way mentioned above rather than risk damaging the engine due to hydrolock.
I am considering the MOPAR and/or GM Combustion chamber cleaners, but I am open to any and all suggestions, and also I am interested in hearing anyones experiences chasing after spark knock and hopefully ridding themselves of it due to carbonization in the combustion chamber.
edit: i am also interested in both aerosol and liquid forms, however liquid would be most preferential. if i could rig up a system like the BG cleaner, i'd simply go get a can of BG44k (does anyone know how i can rig up something DIY to use this cleaner with? it seems perfect because it takes 30-60 minutes to actually complete the cleaning process and i need something that runs long and hard to get rid of 150,000 miles worth of PCV blow-by and carbon deposits)
My truck is suffering from pre-ignition spark knock. I am in need of a heavy duty combustion chamber cleaner.
Just last weekend I wanted to clean my combustion chamber, i intended to buy seafoam but they were sold out so i used B12 Chemtool instead (i actually i think i like this stuff better).
I ran the chemtool thru a vacuum hose to the intake (not the brake booster it was actually a piece of vacuum hose i hooked up to the PCV inlet on the manifold since the hose on my 04 silverado 1500 is plastic i had to remove it and use my own, if that matters)
It was a little bit colder than usual night here in Houston TX, and several hours after doing the cleaning i went and took it for a spin and the spark knock was practically non-existent. 90-95% better. immediatley.
Today, while entering the freeway on-ramp i ran WOT trying to see if there was any spark knock happening and it did come back although this time it was a less "harsh" sounding ping (not so much "TICK TICK TICK" as it was "tshh tshh tshh" sounding) about 50% less harsh sounding than usual.
I know for 100% certainty that carbon in the combustion chamber has artifically raised the compression ratio in my engine causing the spark knock.
That being said, my dad seems to think the spark knock is caused due to "cheap gas" which I do use often, but im still expecting 87 octane which is prescribed for my truck, not to spark knock in the winter, even if its from a "generic" gas station such as "Murphy USA" (walmart)
Long story short: I'm wondering if anyone can reccomend a heavy duty combustion chamber cleaner, perhaps one that takes 30-60 minutes to complete, something I can rig up a system to feed the intake with while leaving the truck at idle so i dont have to worry about it stalling.
Also, i know a lot of people recommend filling up the intake with some solvent then killing/stalling the engine to let the solvent sit and clean or break up the deposits, and while i agree that is probably the best way to do it, i am actually too afraid of hydro-lock to do this, so i'd rather spend the extra money and do 2-3 treatments the way mentioned above rather than risk damaging the engine due to hydrolock.
I am considering the MOPAR and/or GM Combustion chamber cleaners, but I am open to any and all suggestions, and also I am interested in hearing anyones experiences chasing after spark knock and hopefully ridding themselves of it due to carbonization in the combustion chamber.
edit: i am also interested in both aerosol and liquid forms, however liquid would be most preferential. if i could rig up a system like the BG cleaner, i'd simply go get a can of BG44k (does anyone know how i can rig up something DIY to use this cleaner with? it seems perfect because it takes 30-60 minutes to actually complete the cleaning process and i need something that runs long and hard to get rid of 150,000 miles worth of PCV blow-by and carbon deposits)
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