OEM 2005 Buick Park Avenue Intake Manifold

2005 Buick Park Avenue Parts Questions & Experts Answers

• Q: How to replace the upper intake manifold on 2005 Buick Park Avenue?

  A: Start by removing the fuel injector sight shield and disconnecting the manifold vacuum source before you remove the evaporative emission canister purge valve while maintaining the hoses near the air inlet grill. First disconnect the right Spark Plug Wires from the ignition module then put them away while setting the heat shield aside by taking off its fasteners first then removing the MAP Sensor. Remove Fuel Rail mounting bolts together with the Fuel Rail along with injectors then remove Throttle Body support bracket bolts and finally remove the bracket itself. After taking off the air cleaner intake duct you must remove the nuts securing the Throttle Body to the upper Intake Manifold then place the Throttle Body to the side for storage. First remove the upper Intake Manifold bolts and the Throttle Body Gasket before you extract the upper Intake Manifold. The technician should clean both the upper Intake Manifold while also inspecting the lower Intake Manifold mating surface. Begin installation by applying a new upper Intake Manifold gasket to the lower Intake Manifold before placing the upper Intake Manifold into position. Replace all ten upper Intake Manifold bolts by following the sequence order (1-10) and tighten each bolt gradually to 10 nm (89 inch lbs.). After applying a new Throttle Body Gasket onto the upper Intake Manifold, install the Throttle Body and fasten it using nuts that reach 10 nm torque (89 inch lbs.). First reinstall the air cleaner intake duct as well as the Throttle Body support bracket and its bolts before tightening these components to 10 nm (89 inch lbs.). Install the Fuel Rail assembly before putting the engine wiring harness heat shield using fasteners torqued to 10 nm (89 inch lbs.). Be sure to follow these concluding steps: reinstall the MAP Sensor then connect right Spark Plug Wires to the ignition module then install the evaporative emission canister purge valve and restore manifold vacuum source before installing the fuel injector sight shield.