Rear

REMOVAL
1. Remove under cover. Refer to Body and Frame.
2. Follow procedure outlined in the illustration noting the following.
1 Heated Oxygen sensor connector -- except vehicles for Canada
2 Heated oxygen sensor connector
3 Front exhaust pipe
4 Gasket
5 Catalytic Converter
6 Gasket






3. Use special tool MD998770 to remove front and rear heated oxygen sensors.
4. The exhaust manifold threads must be cleaned with an 18 mm (0.7 inch) x 1.5 + 6E tap after the heated oxygen sensor has been disconnected.

INSTALLATION
1. Follow removal procedure in reverse order, noting the following.
2. If reusing the original sensor, coat the sensor threads with an antiseize compound such as Loctite 771-64 or equivalent. New sensors have compound on the threads and do not require an additional coating.

INSPECTION
Check for damage, cracking or deterioration. Replace if faulty.

CAUTIONS:
- Stop the engine immediately if engine misfiring occurs, otherwise an abnormally hot exhaust system will damage the catalytic converter or other underbody parts.
- Correct and repair the ignition or fuel system if there are malfunctions, otherwise engine misfiring may occur which will damage the catalytic converter.
- Observe manufacturer's specifications when doing service work.