OEM 2005 Cadillac XLR Exhaust Manifold

2005 Cadillac XLR Exhaust Manifold Parts Questions & Experts Answers

• Q: How to replace the left exhaust manifold on 2005 Cadillac XLR?

  A: The left Exhaust Manifold replacement process requires removal of the powertrain and Exhaust Manifold and Catalytic Converter components which secure the pipe to the bell housing because of the bolt securing them there. Detach the connector position assurance (CPa) lock from the oxygen sensors before disconnecting their electrical connectors number 1 and 2. The installation starts by disconnecting oxygen sensors and then removing bolts securing the left Exhaust Manifold heat shield with its accompanying shield. Proceed with removing the Exhaust Manifold bolts and nuts then separate both the manifold and replace the left Exhaust Manifold Gasket because it needs disposal. Install the Exhaust Manifold by applying threadlock gm p/n 12345493 or equivalent to a 5 mm (0 - 2 inch) width on the bolt and stud threads before positioning the Exhaust Manifold and its new gasket and fastening the bolts at 25 nm (18 ft. Lbs.) beginning with the center two nuts and continuing alternating from side-to-side. After setting the Exhaust Manifold Catalytic Converter hanger bolt into the bell housing position begin tightening it with 50 nm (37 ft. Lbs.). Insert the left Exhaust Manifold heat shield along with its bolts while securing the heat shield bolts at 10 nm (89 inch lbs.). An application of anti-seize compound gm p/n 12377953 or equivalent on the oxygen sensors threads should be followed by sensor installation while achieving a torque value of 42 nm (30 ft. Lbs.). The powertrain procedure concludes when you connect the Oxygen Sensor electrical connectors along with reinstallation of the cpa locks because the powertrain returns.