Century V6-173 2.8L VIN W FI (1987)
Intake Air Plenum: Service and Repair
Intake Plenum And Fuel Rail
REMOVE
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Disconnect negative battery terminal.
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Vacuum lines, noting positions of hoses.
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Exhaust Gas Recirculation (EGR) to plenum nuts.
THROTTLE BODY
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Two Attaching Bolts,
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throttle body and gasket.
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Discard gasket.
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Throttle cable bracket bolts.
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Ignition wire plastic shield bolts.
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Plenum bolts.
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Plenum and gaskets. Discard gaskets.
CAUTION: Use care in cleaning old gasket material from machined aluminum surfaces. Sharp tools may damage sealing surfaces.
INSTALLATION
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New plenum gaskets.
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Plenum and plenum bolts and torque to 21 Nm (16 lb ft).
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Ignition wire plastic shield bolts.
THROTTLE BODY
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Throttle Body Gasket
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Two Mounting bolts
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Torque to 25 Nm (18 lb ft).
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EGR to plenum nuts.
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Throttle cable bracket bolts.
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Connect vacuum lines.
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Connect negative battery terminal.
