OEM 2005 Buick Terraza Exhaust Manifold

2005 Buick Terraza Parts Questions & Experts Answers

• Q: How to replace the left exhaust manifold on 2005 Buick Terraza?

  A: The process starts with draining engine coolant before removing the throttle body air inlet duct and continuing by taking off the right engine mount strut bracket. First disconnect the inlet Radiator Hose from the engine before removing the thermostat bypass pipe and after taking out the exhaust crossover pipe bolts from the engine left side Exhaust Manifold. Begin the exhaust replacement process by removing all heat shield bolts from the manifold before taking out the heat shield and finally the Exhaust Manifold nuts along with the Exhaust Manifold itself. Persistent cleaning of the engine left side Exhaust Manifold to engine left side Cylinder Head sealing surface must occur before installing the new Exhaust Manifold Gasket. Install the new Exhaust Manifold Gasket before putting on the Exhaust Manifold then tighten the Exhaust Manifold nuts to 16 nm (12 ft. Lbs.). Fasten the Exhaust Manifold heat shield by tightening bolts to 10 nm (89 inch lbs.). The next step should be to set up the exhaust crossover pipe followed by the thermostat bypass pipe installation and a second reconnection of the inlet Radiator Hose to the engine. As a concluding step install the right engine mount strut bracket while adding engine coolant to the cooling system followed by replanning the throttle body air inlet duct.