Wrangler 4WD L4-150 2.5L VIN P MFI (1998)
Muffler: Service and Repair
WARNING: IF TORCHES ARE USED WHEN WORKING ON THE EXHAUST SYSTEM, DO NOT ALLOW THE FLAME NEAR THE
FUEL LINES.
CAUTION: When servicing exhaust system components, disconnect the oxygen sensor connector(s). Allowing the exhaust system to hang by the
oxygen sensor harness will damage the wiring and/or sensor.
All original equipment exhaust systems are manufactured with the exhaust tailpipe welded to the muffler. Service replacement mufflers and exhaust
tailpipes are either clamped together or welded together.
REMOVAL
1. Raise the vehicle and support the rear of the vehicle by the side rails and allow the axle to hang free.
Engine And Tailpipe Assembly
2. Remove the clamp from the catalytic converter and muffler connection.
Catalytic Converter To Muffler Connection
3. Remove the tailpipe hangers from the insulators.
4. Heat the catalytic converter-to-muffler connection with an oxyacetylene torch until the metal becomes cherry red.
5. While the metal is still cherry red, twist the exhaust tailpipe/muffler assembly back and forth to separate it from the catalytic converter.
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To separate an original equipment exhaust tailpipe/muffler combination, cut the exhaust tailpipe close to the muffler. Collapse the part
remaining in the muffler and remove.
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To remove a service exhaust tailpipe/muffler combination, apply heat until the metal becomes cherry red. Remove the exhaust tailpipe/muffler
