OEM 2006 Buick Rendezvous Exhaust Manifold

2006 Buick Rendezvous Parts Questions & Experts Answers

• Q: How to replace the right exhaust manifold (RPO LX9) on 2006 Buick Rendezvous?

  A: Service access for Exhaust Manifold replacement starts with employing the engine tilt strap (J41131) followed by engine forward rotation. The service procedure starts by removing the manifold absolute pressure (MAP) sensor and exhaust gas recirculation (EGR) valve as well as the heated Oxygen Sensor (HO2S) connector position assurance (CPA) retainer. Next, disconnect the ho2s electrical connector before taking out the ho2s electrical connector clip from the Ignition Coil bracket. The next step entails separating the Ignition Coil assembly along with the Spark Plug Wires from each right bank Spark Plug. First remove bolts securing the heat shield before taking out the heat shield and then unscrew nuts from the right Exhaust Manifold. Start by lifting the vehicle with supports while simultaneously taking off the Catalytic Converter before uninstalling Exhaust Manifold upper and lower heat shield bolts and next removing the heat shields and also the Exhaust Manifold nuts. After discarding the Exhaust Manifold Gasket the vehicle should be lowered for cleaning the Exhaust Manifold sealing surfaces. The Exhaust Manifold replacement process requires EGR Valve pipe and ho2s parts to be eliminated. The EGR Valve pipe and ho2s should be installed first before raising and supporting the vehicle. Place a new Exhaust Manifold Gasket inside the setup between the studs and the Exhaust Manifold before tightening nuts to 16 nm (12 ft. Lbs.). Place the Exhaust Manifold upper heat shield in position before installing the bolts which you should tighten by finger pressure. Repeat this process for the lower heat shield before final tightening of both to 10 nm (89 inch lbs.). After setting the vehicle to its normal height position the Catalytic Converter then install exhaust crossover pipe nuts to the right Exhaust Manifold while tightening each nut to 25 nm (18 ft. Lbs.). Place the exhaust crossover pipe heat shield properly before installing its bolts and achieving a torque setting of 10 nm (89 inch lbs.). Reconnect sparks wires to right bank spark plugs then fit the Ignition Coil assembly and join ho2s electrical connector before adding cpa retainer and ho2s electrical connector clip to Ignition Coil bracket. The EGR Valve installation must be followed by a MAP Sensor installation along with releasing the engine tilt strap (J41131), installing the engine mount struts and finally removing the engine tilt strap (J41131) and installing the air cleaner outlet duct.