Originally Posted by xxMichaelAnthony
Use THROTTLE BODY cleaner. Most cars have a teflon or similar coating inside metal intake parts. Carb and break clean will take it right off and it will start to pit like a son of a bitch. I found this out when I cleaned the IAC and throttle body in my Ranger. Had to buy a new throttle body and IAC. The buffer fly in my throttle body seized up and the IAC seized also. Better safe then sorry.
It can cause pitting, but most likely wont.. the carb cleaner is more harsh on the sensors around the TB because it is formulated to remove heavy varnishes found in carburetors. so that means it should be 100% okay to sue on the IAC since it is a valve. dozens of people have used carb cleaner on it it just is stronger than the Throttle body cleaner
Zetec Crew #343
1979 Ford F-150 Custom 200,000 and counting
2003 Ford Focus Zx3 - 130,000 and counting (DD)