Cutlass Ciera Cruiser V6-3100 3.1L MFI VIN M (1994)
Upper Intake Manifold: Service and Repair
Removing Plenum And Fuel Rail
REMOVE OR DISCONNECT
1. Negative battery cable.
2. Drain coolant.
3. Air inlet duct.
4. Accelerator and cruise control cables at throttle body and accelerator control cable bracket.
5. Fuel pipe clip at accelerator control cable bracket.
6. Accelerator control cable bracket.
7. Vacuum lines, noting positions of hoses.
8. Exhaust Gas Recirculation (EGR) valve.
9. Heater inlet pipe hose clamps at heater inlet pipe.
10. Ignition coil assembly front bolts.
11. Loosen ignition coil assembly rear nuts.
12. Alternator braces.
13. Electrical connectors at Idle Air Control (IAC) valve, Mass Air Flow (MAF) and Throttle Position (TP) sensors.
14. Upper intake manifold bolts and studs.
15. Upper intake manifold and gaskets. Discard gaskets.
Disassemble
1. Throttle body from upper intake manifold.
2. Heater hoses from upper intake manifold.
3. Fuel pressure regulator vacuum line.
NOTICE: Use care in cleaning old gasket material from machined aluminum surfaces as sharp tools may damage sealing surfaces.
Clean
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Gasket sealing surfaces.
Assemble