Intake Manifold (Upper) Removal (5.0L & 5.7L)
WARNING: This page is about a different variant/trim than selected.
CAUTION:
Always apply a few drops of clean engine oil to the male fuel pipe ends before connecting fuel pipe fittings in order to reduce the risk of fire and personal injury. This will ensure and prevent a possible fuel leak. During normal operation, the O rings located in the female connector will swell and may prevent proper reconnecting if not lubricated.
NOTE:
Manufacturer does not provide a torque sequence for upper intake manifold on 4.3L, 5.0L & 5.7L engines.
- Disconnect negative battery cable. Remove interior engine cover (if equipped). Remove air cleaner assembly and inlet duct. Disconnect accelerator and cruise control cables. Remove throttle cable bracket. Remove canister purge solenoid.
- Disconnect the Sequential Central Port Injection (SCPI) injector, ignition coil, Ignition Control Module (ICM), generator, Idle Air Control (IAC) motor, Throttle Position (TP) sensor, O2 sensor, Exhaust Gas Recirculation (EGR) valve and Engine Coolant Temperature (ECT) sensor wiring harness connectors.
- Remove the distributor cap and disconnect fuel pipes at rear of engine. Remove PCV valve and hose. Remove the wiring harness support bracket at the rear of the intake manifold. Remove upper intake manifold bolts. Remove upper intake manifold. See Figure.