How To Prevent (And Clean) Carbon Buildup In Engines
It is also possible to get rid of carbon buildup by manually cleaning the valves with a solvent and scraping tools or walnut ...
The Family Handyman on MSN11 个月
How to Test and Clean an EGR Valve
The most common culprit is carbon buildup on the throttle body, exhaust gas recirculation (EGR) valve and idle air control ...