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Home >> Jeep >> 2020 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Converter, Catalytic >> Installation >> 3.6L Engine

3.6L Engine

GC0144288Courtesy of CHRYSLER GROUP, LLC
  1. Position new exhaust gasket (6) onto the flange (1).
  2. Position the front exhaust pipe/catalytic converter assemblies (4) into the vehicle.
  3. Install the lower bolts (5) at the front exhaust pipe/catalytic converter (4) assembly to exhaust manifold (1) flange. Do not tighten.
  4. Remove the support and lower the vehicle.
  5. Install the upper bolts at the front exhaust pipe/catalytic converter assemblies to exhaust manifold flanges. Tighten the bolts to 23 Nm (17 ft. lbs.).
  6. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  7. Tighten the lower flange bolts to 23 Nm (17 ft. lbs.).
    GC0138689Courtesy of CHRYSLER GROUP, LLC
  8. Position the exhaust system for proper clearance with the frame and underbody parts. A minimum clearance of 25.4 mm (1.0 in.) is required.
  9. Tighten the front exhaust pipe/catalytic converter assembly to muffler flange (2) nuts to 47 Nm (35 ft. lbs.) torque.
    GC0145888Courtesy of CHRYSLER GROUP, LLC
  10. Connect the oxygen sensor (2) electrical connectors.
  11. Install the transmission crossmember reinforcement brackets (1, 4). Tighten the bolts to 55 Nm (41 ft. lbs.).
  12. If equipped, install the skid plates. Refer to PLATE, SKID, TRANSFER CASE, INSTALLATION .
  13. Remove the support and lower the vehicle.
  14. Start the vehicle and inspect for exhaust leaks. Repair exhaust leaks as necessary.
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