lnf cobalt ss turbo direct injection valve coking
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- Опубліковано 15 вер 2024
- this video is after my other video of letting valves soak in gm top end cleaner along with a little gumout foaming top engine cleaner. i let the first three cyl sit for about 4 hours did minimal scraping and afterwords vaccumed em out and put some water in a couple times. it actually worked super good!