SW1 L4-1.9L SOHC VIN 8 (1996)
Throttle Body: Service and Repair
Throttle Body Cleaning and Inspection
NOTE: The TP sensor and IAC valve must NOT come in contact with solvent or cleaner, as they may be damaged.
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The throttle bore and valve deposits may be cleaned on-vehicle, using carburetor cleaner (Saturn P/N 21007432) and a shop towel. Follow
instructions on container. Do not use a cleaner that contains methyl ethyl ketone, an extremely strong solvent, and not necessary for this type of
deposit.
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Remove and clean IAC valve 0-ring sealing surface, pintle valve seat and air passage, if necessary.
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Use carburetor cleaner and a parts cleaning brush to remove carbon deposits. Follow instructions on container. Do not use a cleaner that
contains methyl ethyl ketone, an extremely strong solvent, and not necessary for this type of deposit.
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Shiny spots on the pintle or seat are normal, and do not indicate misalignment or a bent pintle shaft.
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If air passage has heavy deposits, remove throttle body for complete cleaning.
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Inspect IAC valve 0-ring for cuts cracks or distortion. Replace if damaged.
NOTE: If installing a new IAC valve, be sure to replace with an identical part. IAC valve pintle shape and diameter are designed for the specific
application.
