Regal V6-191 3.1L (1991)
Idle Speed/Throttle Actuator - Electronic: Service and Repair
Idle Air Control (IAC) Valve Replacement
Throttle Body Assembly
REMOVAL:
1.
Disconnect the idle air control (IAC) valve electrical connector.
2.
Remove the IAC valve attaching screws.
3.
Remove the IAC valve assembly.
4.
Clean the IAC valve O-ring sealing surface, pintle valve, seat and air passage.
^
Use carburetor cleaner and a parts cleaning brush to remove carbon deposits. DO NOT use a cleaner that contains Methyl Ethyl Ketone. It is
an extremely strong solvent, and not necessary for this type of deposit.
^
Shiny spots on the pintle or seat are normal, and do not indicate misalignment or a bent pintle shaft.