OEM 2003 Buick Rendezvous Exhaust Manifold

2003 Buick Rendezvous Exhaust Manifold Parts and Q&A

• Q: How to replace the left exhaust manifold on 2003 Buick Rendezvous?

  A: The replacement process for the left Exhaust Manifold starts by removing the throttle body air inlet duct followed by draining the engine coolant from the cooling system. The next step requires removal of the right engine mount strut bracket along with disconnecting the inlet Radiator Hose from the engine and removing the thermostat bypass pipe. As a next step remove the exhaust crossover pipe together with Exhaust Manifold heat shield bolts and the heat shield itself. First remove all Exhaust Manifold nuts before taking out both the Exhaust Manifold and its gasket from the engine block. The left Exhaust Manifold needs cleaning before installing it on the left cylinder head sealing surfaces of the engine. The Exhaust Manifold process begins by installing the gasket and manifold while using 16 n.m (12 lb ft) torque when securing the manifold nuts. You should position the Exhaust Manifold heat shield followed by its bolts before tightening them to 10 n.m (89 lb in). Put back the exhaust crossover pipe and the thermostat bypass pipe before attaching the inlet Radiator Hose to the engine and reinstalling the right engine mount strut bracket. The procedure ends by adding engine coolant to the cooling system followed by mounting the throttle body air inlet duct.