Exhaust Manifold LH: Installation

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

- Install the new exhaust manifold studs.
  Torque: 106 lb.in (12 Nm)
- Install the new exhaust manifold gasket.
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NOTE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.

Install the exhaust manifold and the new nuts.

Torque: Stage 1: 168 lb.in (19 Nm) | Stage 2: 18 lb.ft (25 Nm)

Fig 1: LH Exhaust Manifol Tightening Sequence
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Install the LH fender splash shield. Refer to: Fender Splash Shield .
Install the new RH catalytic converter-to-exhaust manifold nuts.
Torque: 30 lb.ft (40 Nm)

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Install the new LH catalytic converter-to-exhaust manifold nuts.
Torque: 30 lb.ft (40 Nm)

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- Position the exhaust Y-pipe dual catalytic converter-to-exhaust intermediate pipe and install the bolts.
- Tighten the inner exhaust Y-pipe dual catalytic converter-to-exhaust intermediate pipe bolt.
  Torque: 46 lb.ft (63 Nm)
- Tighten the outer exhaust Y-pipe dual catalytic converter-to-exhaust intermediate pipe bolt.
  Torque: 46 lb.ft (63 Nm)
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If equipped, install the skid plate and the bolts.
Torque: 30 lb.ft (40 Nm)

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If equipped, install the underbody shield and bolts.
Torque: 30 lb.ft (40 Nm)

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If equipped, install the transmission housing cover and the bolts
Torque: 71 lb.in (8 Nm)

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Start the engine and check the exhaust for leaks.