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Removal & Installation (B4000)

  1. Disconnect negative battery cable. Remove air cleaner outlet tube. Disconnect accelerator and cruise control cable from throttle body. Remove accelerator cable bracket.
  2. Disconnect PCV and vacuum hoses from upper intake manifold and throttle body. Disconnect ignition coil electrical connector and secondary ignition wires.
  3. Disconnect electrical connectors from throttle position sensor, idle air control valve EVR solenoid and EGR backpressure transducer.
  4. Evenly loosen upper intake manifold nuts. To install, replace upper intake manifold gasket (if necessary). Install upper intake manifold bolts and tighten in crisscross pattern to specification. See TORQUE SPECIFICATIONS . To complete installation, reverse removal procedure.
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