OEM 2001 Chevrolet Suburban 1500 Intake Manifold

2001 Chevrolet Suburban 1500 Intake Manifold Parts and Q&A

• Q: How to remove the intake manifold on 2001 Chevrolet Suburban 1500?

  A: Removing the Intake Manifold starts by removing the engine sight shield and retainer followed by fuel system pressure relief. First disconnect the cruise control cable from the throttle blade stud before removing it from the bracket and then remove the accelerator control cable from the throttle blade and its bracket. The procedure continues by disconnecting the Fuel Rail's main ignition coil harness and fuel injectors while also removing the harness clips. You should next proceed to uninstall the main ignition coil harness and fuel injectors while also disconnecting the exhaust gas recirculation (EGR) valve. Lastly remove the harness clips that secure the Fuel Rail. Fasten the Knock Sensor harness electrical connector to the Intake Manifold while you disconnect the manifold absolute pressure (MAP) sensor and Knock Sensor. Set the electrical harness to the side. Connectors should first be removed from the throttle position (TP) sensor if present before proceeding to disconnect the electronic throttle control (ETC) motor if present and the idle air control (IAC) valve and purge solenoid then generator . Remove the wiring harness bracket nut and its bracket attachment at the stud before readjusting the engine wiring harness alongside the coolant air bleed hose at the Throttle Body. Ensure the Throttle Body remains hose-free during this process. Remove the radiator vent inlet hose from the Throttle Body by removing its clamp. The positive crankcase ventilation (PVC) hose needs to be taken from the Throttle Body and rocker arm cover and the pcv hose (with valve) needs to be taken from the Intake Manifold and rocker arm cover. The egr pipe bolts need removal from three points: Intake Manifold and Cylinder Head and Exhaust Manifold. The egr pipe (with valve) and Exhaust Manifold gasket must also be extracted. Remove the vacuum brake booster hose from the rear of the Intake Manifold when equipment requires it. You need to first disconnect the evaporative emission (EVAP) purge solenoid vent tube from its solenoid section while pressing the evap pipe fastener to separate the tube end from the vapor pipe. Begin by disconnecting the fuel line quick connect fittings before you remove the bolts from the Intake Manifold and its adjoining gaskets which must be discarded. Wipe down both the gasket surfaces on the egr pipe and the Exhaust Manifold for cleanup. The Throttle Body and Fuel Rail with injectors must be removed along with the MAP Sensor along with the accelerator control cable bracket bolts and bracket and the evap solenoid bolt and solenoid and isolator when replacing the Intake Manifold.