OEM 2010 Cadillac DTS Exhaust Manifold

2010 Cadillac DTS Exhaust Manifold Parts and Q&A

• Q: How to replace the left side exhaust manifold on 2010 Cadillac DTS?

  A: A driver must commence replacement of the left side Exhaust Manifold by removing the front Engine Mount Bracket first. The first step requires users to detach the heated Oxygen Sensor (HO2S) by removing its engine harness electrical connector and cpa retainer. Start by disconnecting the Exhaust Manifold front pipe bolts before removing the Exhaust Manifold bolts from the Exhaust Manifold. Finally, take out the Exhaust Manifold and keep the Exhaust Manifold Gasket and front Exhaust Manifold pipe seal for replacement. The team will discard the front Exhaust Manifold Gasket as well as the Exhaust Manifold pipe seal before extracting the front Exhaust Manifold pipe flange. Installation begins with the Exhaust Manifold receiving a new seal after which you should install the front Exhaust Manifold pipe flange. Fasten the upper right Exhaust Manifold bolt into its place at position before setting down the new Exhaust Manifold Gasket opposite the manifold surface. Lay the Exhaust Manifold in position within the front Exhaust Manifold pipe while the Cylinder Head receives it. After that, use your fingers to start the Exhaust Manifold bolt. Begin by installing the first Exhaust Manifold bolt located at position . Start tightening from right to left, followed by all remaining bolts up to the final one which should be torqued to 25 nm (18 lb ft). Afterwards install the Exhaust Manifold front pipe bolts. The threads of reused ho2s require anti-seize compound gm p/n 12377953 as a coating followed by ho2s installation which should be torqued to 41 nm (30 lb ft). Proceed with connecting the ho2s engine harness electrical connector while installing the cpa retainer and then placing back the front Engine Mount Bracket.