Exhaust System: Service and Repair
Removal and InstallationWARNING:
^ Perform the procedures with the exhaust system fully cooled down to avoid injury from the hot exhaust system.
^ Be careful not to cut your hand on the insulator edge.
NOTE: Use genuine NISSAN exhaust system parts or equivalent, which are specifically designed for heat resistance, corrosion resistance, and shape.
REMOVAL
^ Remove exhaust system components using power tool.
^ When removing center exhaust tube, remove tunnel stay bracket.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
^ Always replace exhaust gaskets with new ones when reassembling.
^ Before installing a new oxygen sensor, clean the exhaust tube threads using Oxygen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
^ Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 inch) onto a hard surface such as a concrete floor; install a new one.
^ Do not over-torque the oxygen sensor. Doing so may damage the oxygen sensor, resulting in the MIL coming on.
^ If any insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the insulator, clean and inspect them.
^ Temporarily tighten the mounting nuts on the exhaust manifold side and the mounting bolts on the vehicle side. Check each part for interference with other components, and then tighten the nuts and bolts to specification.
INSPECTION AFTER INSTALLATION
^ With the engine running, check the exhaust tube joints for exhaust gas leaks and unusual noises.
^ Check that the mounting brackets and mounting insulators are installed properly and free from excessive stress. Improper installation could result in excessive noise, leaks, and vibration.