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Exhaust Y-Pipe - 3.0L, 4.0L: Installation

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Do not tighten the exhaust system fasteners until all components are assembled and aligned, making sure to tighten all fasteners beginning at the front of the vehicle. For additional information, refer to Exhaust System Alignment  in this article.
NOTE: Clean the mating surface of the exhaust manifold outlet flares and the exhaust Y-pipe inlet flares. Make sure not to damage the exhaust manifold outlet flares or the studs.
NOTE: Clean the mating surface of the exhaust Y-pipe and the catalytic converter. Make sure not to damage the exhaust Y-pipe and catalytic converter mating surfaces or studs.
    NOTE: Make sure to apply anti-seize lubricant to the threads of the sensors before installation.
  1. If removed, install the catalyst monitor sensors and the RH HO2S and catalyst monitor sensor.
    • Tighten to 41 Nm (30 lb-ft).
  2. NOTE: 3.0L shown, 4.0L similar.
    Fig 1: Locating RH Side Of Exhaust Y-Pipe-To-Exhaust Manifold Nuts
    GF0010725Courtesy of FORD MOTOR CO.
  3. Position the RH side of the exhaust Y-pipe into the vehicle and loosely install the RH side of the exhaust Y-pipe-to-exhaust manifold nuts.
  4. Install the LH side of the exhaust Y-pipe-to-RH side of the exhaust Y-pipe gasket.
  5. NOTE: 3.0L shown, 4.0L similar.
    Fig 2: Locating LH Side Of Exhaust Y-Pipe-To-Exhaust Manifold Nuts
    GF0010729Courtesy of FORD MOTOR CO.
  6. Position the LH side of the exhaust Y-pipe into the vehicle and loosely install the LH side of the exhaust Y-pipe-to-exhaust manifold nuts.
  7. Loosely install the LH side of the exhaust Y-pipe-to-RH side of the exhaust Y-pipe nuts.
  8. Install the transmission mount and isolator-to-transmission bolt.
    Fig 3: Locating Transmission Mount & Isolator-To-Transmission Bolt
    GF0010728Courtesy of FORD MOTOR CO.
    • Tighten to 90 Nm (66 lb-ft).
  9. Loosely install the RH side of the exhaust Y-pipe-to-muffler and tailpipe assembly gasket, bolts and flag nuts.
  10. Align the exhaust system. For additional information, refer to Exhaust System Alignment  in this article.
  11. Connect the HO2S and catalyst monitor sensors electrical connectors.