De-carbonizing process for combustion component cleaning

A process for cleaning an intake manifold of an engine to remove carbon deposits, comprising the steps of:

• applying a de-carbonizing composition comprising a hydrophobic phase solvent mixture of aromatic hydrocarbons, lipophilic solvent, and a mutual solvent, wherein said aromatic hydrocarbons are selected from the group consisting of:
• trimethyl benzene, toluene, xylene, benzene, and combinations thereof;
• said lipophilic solvent is selected from the group consisting of a C10-C28 fatty acid methyl ester, kerosene, C8-C22 alkane petroleum distillates, and a combination of said kerosene and said C8-C22 alkane petroleum distillates;
• and said mutual solvent is selected from the group consisting of:
• diethylene glycol dialkyl ether, dipropylene glycol, (C1-C6 alkyl)2-O ethers, methyl ethyl ketone, acetone, cyclohexanone;
• N-methylpyrrolidone, N-ethylpyrrolidone, and combinations thereof;
• ammonium soap;
• and water present in amount of more than 5 total weight percent of the composition to the intake manifold of the engine during operation of said engine for a first time period to remove the carbon deposits from said intake manifold of the engine;
• turning off the engine for a second time period;
• and
• restarting the engine to draw the removed carbon deposits and said de-carbonizing composition into a combustion chamber of the engine to clean the intake manifold.