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Tag Archives: FSI intake valve cleaning

Audi FSI Carbon Cleaning

Audi FSI Carbon Cleaning

Carbon build up on Audi engines such as 2.0 TSI/FSI, 3.0 TFSI, 3.2L V6 FSI and 4.2L V8 FSI are inevitable. The by-products of the engine combustion process contains carbon deposits that looks like soot, is constantly being recirculated through the engine. Overtime these carbon deposits will build up on the intake valves. When this happens the car's fuel economy will be degraded then leading to loss of engine performance. In order to clean off the soot deposits, we start by removing the intake manifold to gain access to the intake ports. We then blast each intake port with crushed walnut shells under high pressure, a procedure our repair shop uses known as walnut blasting. This particular car had a rough idle, drove sluggish and had a misfire during acceleration. The excess carbon was preventing the intake valves to close properly ... read more


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