Grand Cherokee 2WD V8-5.2L VIN Y (1998)
Exhaust Pipe: Service and Repair
Exhaust Pipe Replacement
REMOVAL
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 sensor and/or wiring.
1. Raise and support the vehicle.
2. Saturate the bolts and nuts with heat valve lubricant. Allow 5 minutes for penetration.
3. Remove the oxygen sensor from the exhaust pipe.
4. Disconnect the exhaust pipe from the engine exhaust manifold. On 4.0L engines, discard the exhaust manifold seal.
5. Remove the exhaust clamp from the exhaust pipe and catalytic converter connection. Disconnect the exhaust pipe from the catalytic converter. If
needed:
(a) Heat the exhaust pipe and catalytic converter connection with an torch until the metal becomes cherry red.
(b) While the metal is still cherry red, twist the exhaust pipe back and forth to separate it from the catalytic converter.
6. Disconnect the exhaust pipe hanger from the rear mount bracket insulator.
7. Remove the exhaust pipe.
INSTALLATION
1. Position the exhaust pipe onto the catalytic converter.
