S10/T10 Blazer 2WD V6-4.3L VIN X (2003)
container regarding cleaner usage.
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DO NOT use a cleaner containing an extremely powerful solvent such as methl ethyl ketone.
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Shiny spots on the pintle and seat do not represent a bent or misaligned pintle shaft.
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If heavy deposits are present in the air passage, remove the throttle body for a complete cleaning.
2. Replace the IAC valve O-ring.
IMPORTANT: DO NOT reuse the original O-ring.
INSTALLATION PROCEDURE
1. On a new IAC valve, measure the distance between the IAC valve pintle and mounting flange. Use finger pressure to slowly retract the pintle if the
distance is more than 28 mm (1-1/8 in).
IMPORTANT: Use an identical part when installing a new idle air control (IAC) valve. The IAC valve pintle shape and dimensions are designed for
specific applications.
2. Lubricate the IAC valve O-ring with clean engine oil.
3. Align the flange holes with the mounting holes on the throttle body assembly.
4. Insert the IAC valve through the O-ring into the throttle body assembly.
5. Install the IAC valve mounting screws.
