OEM 2006 Chevrolet Cobalt Intake Manifold

2006 Chevrolet Cobalt Parts Questions & Experts Answers

• Q: How to replace the intake manifold on 2006 Chevrolet Cobalt?

  A: Begin your replacement by removing both the Intake Manifold cover and air cleaner outlet duct. Disconnect power connections linking the throttle actuator control (TAC) to the engine harness along with the fuel injector harness and the manifold absolute pressure (MAP) sensor. Detach the clips that secure the engine harness to both the Intake Manifold and oil level indicator tube and fuel injector electrical connector. After repositioning the vacuum brake booster hose clamp you should remove the vacuum brake booster hose. Start by taking out the Throttle Body bolts but keep the Throttle Body seal for potential reuse. If damaged, replace it. Check the Throttle Body during inspection by removing it from position. Detach the evaporative emission (EVAP) canister purge tube which runs between the Intake Manifold and the evap solenoid before you take out the oil level indicator tube and Fuel Rail. First remove Intake Manifold lower bolts followed by upper bolts and nuts then take away the Intake Manifold and inspect the gasket for damage before replacing it if needed. When installing new parts start by replacing the damaged Intake Manifold Gasket. Otherwise, reuse the old gasket. Begin the reinstallation by attaching the Intake Manifold using upper bolts and nuts before adding lower bolts then torque each to 10 nm (89 inch lbs.). Complete installation by putting back the Fuel Rail and oil level indicator tube followed by reinstalling the evap canister purge tube. Replace the Throttle Body seal if you need to do so. Regarding Throttle Body installation use the existing gasket unless it is damaged then deploy a new one before positioning the Throttle Body and securing it with 10 nm (89 inch lbs.) bolt torque. After securing the vacuum brake booster hose and its clamp, the technician reconnected the engine harness clips to both the Intake Manifold and oil level indicator tube and reestablished the fuel injector electrical connector clip. Reconnect the engine harness electrical connectors with the fuel injector harness alongside the MAP Sensor and tac then return the air cleaner outlet duct and Intake Manifold cover.