OEM Chevrolet Equinox Exhaust Manifold

Chevrolet Equinox Exhaust Manifold Parts and Q&A

• Exhaust Manifold, Driver Side
  12587594
  Q: How to replace the left side exhaust manifold (LNJ) (3.4L) on Chevrolet Equinox?

  A:

  The replacement of the left side Exhaust Manifold (LNJ) (3.4L) starts by taking out the 3 exhaust crossover pipe nuts which connect to the left Exhaust Manifold. Start by removing the exhaust gas recirculation (EGR) pipe before uninstalling the Exhaust Manifold heat shield bolts and both parts of the heat shield. Start by removing Exhaust Manifold nuts and after this remove the Exhaust Manifold together with the Exhaust Manifold Gasket . To continue the Exhaust Manifold replacement process owners should remove Exhaust Manifold studs while simultaneously cleaning both Exhaust Manifold sealing surfaces and Cylinder Head. The installation process requires studying that you re-install the studs before tightening them to meet a torque range of 18 nm (13 lb ft). The Exhaust Manifold Gasket should be placed first followed by the Exhaust Manifold before securing it with nuts tightened at 16 nm (12 lb ft). Next install and fasten the Exhaust Manifold heat shield together with its bolts until they achieve a torque of 10 nm (89 lb in). The installation process concludes with the reinstallation of the egr pipe combined with tightening the three nuts for the exhaust crossover pipe to left Exhaust Manifold attachment.
• Exhaust Manifold
  12571100
  Q: How to replace the right side exhaust manifold (LNJ) (3.4L) on Chevrolet Equinox?

  A:

  The right side Exhaust Manifold (LNJ) (3.4L) replacement process requires unconnecting the Oxygen Sensor electrical connector as a first step. Unfasten three nuts which hold the exhaust crossover pipe to the right Exhaust Manifold. Raise and support the vehicle. Secure the Catalytic Converter to the side through three nuts then set it apart from the Exhaust Manifold. Begin by unscrewing the 3 bolts from the Exhaust Manifold heat shields and afterwards detach both heat shields (1, 2). Following the removal of 3 Exhaust Manifold nuts and the Exhaust Manifold you need to remove the Exhaust Manifold Gasket . The replacement of the engine right side Exhaust Manifold requires removal of the heated Oxygen Sensor (HO2S). Phenomenon or necessity for stud removal necessitates cleaning the Exhaust Manifold surfaces together with the Cylinder Head sealing surfaces. Install the Exhaust Manifold studs after removal if necessary then torque these to a maximum of 18 nm (13 lb ft). If removed, install the ho2s. Place the Exhaust Manifold Gasket along with the Exhaust Manifold in position before tightening the manifold nuts to 16 nm (12 lb ft). The installation process begins with heat shield upper and lower components before moving to heat shield bolt tightness of 10 nm (89 lb in). Secure the Catalytic Converter into position on the Exhaust Manifold then torque its mounting nuts to the indicated specification. Place the exhaust pipe crossover below the vehicle then fasten its nuts to the right Exhaust Manifold. Finally, connect the ho2s electrical connector.