Century V6-173 2.8L VIN W FI (1987)
Throttle Body: Service and Repair
Idle Air / Vacuum Signal Housing
Idle Air / Vacuum Signal Housing
REMOVE
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Idle Air Control (IAC) Valve
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Idle Air / Vacuum Signal Housing screws.
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Idle Air / Vacuum Signal Housing assembly and gasket.
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Discard gasket.
CLEAN
Gasket mounting surfaces to ensure a good seal.
CAUTION: Use care in cleaning old gasket material from machined aluminum surfaces. Sharp tools may damage sealing surfaces.
INSTALL
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Idle Air / Vacuum Signal Housing gasket.
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Idle Air / Vacuum Signal Housing
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Idle Air / Vacuum Signal Housing screws.
Tighten
Idle Air / Vacuum Signal Housing screws (starting in the center and moving outward) to 3.4 Nm (30 lb in)
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Idle Air Control (IAC) Valve
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Electrical connector.
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Vacuum harness connector.
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Negative battery terminal.