Ford Mustang Service Manual: Dual Converter Y-Pipe - 3.8L

Removal

NOTE: The RH and LH catalytic converters are serviceable separately.

1. Raise and support the vehicle. For additional information, refer to Section.

2. CAUTION: When repairing the exhaust system or removing exhaust components, disconnect all heated oxygen sensors (HO2S) (9F472) and catalyst monitor sensors at the wiring connectors to prevent damage to the sensors and wiring harnesses.

Disconnect the RH and LH HO2S connectors.

3. Disconnect the RH and LH catalyst monitor sensor connectors.


3. Disconnect the RH and LH catalyst monitor sensor connectors.

4. Remove the dual converter assembly nuts.


4. Remove the dual converter assembly nuts.

5. Remove the RH exhaust manifold flange nuts.


5. Remove the RH exhaust manifold flange nuts.

6. Remove the LH exhaust manifold flange nuts.


6. Remove the LH exhaust manifold flange nuts.

7. Remove the dual converter (5F250) assembly.


7. Remove the dual converter (5F250) assembly.

8. If necessary, use the two spot welds as a baseline, measure 226.8 mm (9.07


8. If necessary, use the two spot welds as a baseline, measure 226.8 mm (9.07 in) and cut the pipe.

9. Remove 13 mm (0.52 in) from the LH dual converter.


9. Remove 13 mm (0.52 in) from the LH dual converter.

Installation


Installation

1. Position the LH dual converter.

  • Snug the LH converter-to-manifold nuts.

2. Position the RH dual converter pipe.


2. Position the RH dual converter pipe.

  • Snug the RH converter-to-manifold nuts.

3. If necessary, position the LH and RH dual converter pipes into the sleeve


3. If necessary, position the LH and RH dual converter pipes into the sleeve and install the clamps.

Tighten the clamps to 55 Nm (41 lb-ft).

4. Install the dual converter assembly nuts.

5. Tighten the LH converter-to-manifold nuts.


5. Tighten the LH converter-to-manifold nuts.

6. Tighten the RH converter-to-manifold nuts.


6. Tighten the RH converter-to-manifold nuts.

7. Connect the RH and LH HO2S connectors.


7. Connect the RH and LH HO2S connectors.

8. Connect the RH and LH catalyst monitor sensor connectors.

9. Lower the vehicle.

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