I had a good experience of watching a Tech Clean our 2001 Camry 4 Cyl Idle Control Valve. He showed me that it was full of carbon before he started cleaning the valve. After using some spray cleaner and a scraping tool it looked spotless.
I saw all of what I expected to see except a motor and he explained magnets control the valve to open or close. Not thinking I did not ask his to show me that it would open/close after it was cleaned. I did see him move something freely as he cleaned. I felt I was violating his space but I asked if I could watch him and he was OK with me watching. You could see he knew the process and was quick w/o any wasted time. I could tell it was routine and he was back on his job in progress before asked by the owned if he had time to do the drive-in vs a scheduled cleaning (@60.00. From watching, I could easily repeat the cleaning if needed, which is my mode of learning new processes.
How often or miles are the valves normally cleaned? Should I see any instant changes in the Idle RPM, which was my goal? OR! Will it take a few miles for the computer to re-program after the cleaning?
I saw all of what I expected to see except a motor and he explained magnets control the valve to open or close. Not thinking I did not ask his to show me that it would open/close after it was cleaned. I did see him move something freely as he cleaned. I felt I was violating his space but I asked if I could watch him and he was OK with me watching. You could see he knew the process and was quick w/o any wasted time. I could tell it was routine and he was back on his job in progress before asked by the owned if he had time to do the drive-in vs a scheduled cleaning (@60.00. From watching, I could easily repeat the cleaning if needed, which is my mode of learning new processes.
How often or miles are the valves normally cleaned? Should I see any instant changes in the Idle RPM, which was my goal? OR! Will it take a few miles for the computer to re-program after the cleaning?