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Re: 5.3 knocks when warmed up
Sorry, ive been busy lately. Seafoam is a good product but it will not clean the carbon like a BG type product will. The BG product is used pressurized directly into the fuel system and is a very powerful cleaner. But with that being said you could always try a can of seafoam. It's a small investment with nothing to loose. The only reason I used the BG product is because it is readily available to me. That's all I ever use because of that reason. I know it works. I used a carbon cleaner product made by motorcraft years ago that I pulled through the booster vacuum hose. I let it soak then ran the snot out of the engine in my 4.3 s10. It fixed the spark knock I had in it. Seafoam or similar product should do the same.
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