Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 1997 >> F 150 2WD Pickup V6-4.2L VIN 2 >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Catalytic Converter >> Service and Repair >> Removal
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Removal

REMOVAL

1. Remove the muffler and tail pipe assembly.





2. Disconnect the two Heated Oxygen Sensor (HO2S) and the two Catalyst Monitor Sensors (CMSs).

NOTE: The two upstream HO2Ss are located on the exhaust manifolds and do not need to be removed.





3. Remove the two LH and two RH TWC to exhaust manifold nuts.





4. Remove the transfer case skid plate.
1 Remove the four transfer case skid plate bolts (two each side).
2 Remove the transfer case skid plate.





5. Remove the two heat shield-to-transmission support crossmember bolts.
6. Use Hi-Lift Jack to support the transmission.





7. Remove the transmission support crossmember-to-transmission support insulator nuts.





8. Remove the transmission support crossmember.
1 Remove the three LH bolts and three RH bolts.
2 Remove the transmission support crossmember.





9. Remove the nuts.
10. Remove the two TWCs.





11. If only one TWC is being replaced, remove the LH to RH TWC clamp.





12. Separate the LH and RH TWCs.

NOTE: It may be necessary to heat the LH/ RH TWC joint to ease removal.

pro multis · About Operation CHARM