Exhaust Y-Pipe - Gasoline Engines: Installation
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Do not tighten any fasteners until all components are aligned.
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NOTE: Prior to installation, inspect the Heated Oxygen Sensor (HO2S) and the Catalyst Monitor Sensor (CMS) wiring harness for damage.NOTE: LH exhaust Y-pipe-to-exhaust manifold shown, RH similar.
With the help of an assistant, position the exhaust Y-pipe into the vehicle and loosely install 4 new exhaust Y-pipe-to-exhaust manifold nuts.
- Loosely install the 2 exhaust Y-pipe-to-catalytic converter bolts.
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NOTE: Make sure the exhaust Y-pipe is aligned to provide maximum clearance to adjacent parts.
To seat the LH exhaust Y-pipe-to-exhaust manifold nuts, tighten the nuts in the following sequence.
- Tighten the lower LH exhaust Y-pipe-to-exhaust manifold nut to 20 Nm (177 lb-in).
- Tighten the upper LH exhaust Y-pipe-to-exhaust manifold nut to 40 Nm (30 lb-ft).
- Tighten the lower LH exhaust Y-pipe-to-exhaust manifold nut to 40 Nm (30 lb-ft).
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NOTE: Make sure the exhaust Y-pipe is aligned to provide maximum clearance to adjacent parts.
To seat the RH exhaust Y-pipe-to-exhaust manifold nuts, tighten the nuts in the following sequence.
- Tighten the lower RH exhaust Y-pipe-to-exhaust manifold nut to 20 Nm (177 lb-in).
- Tighten the upper RH exhaust Y-pipe-to-exhaust manifold nut to 40 Nm (30 lb-ft).
- Tighten the lower RH exhaust Y-pipe-to-exhaust manifold nut to 40 Nm (30 lb-ft).
- Tighten the 2 exhaust Y-pipe-to-catalytic converter bolts.
- Tighten to 40 Nm (30 lb-ft).
- Connect the CMS electrical connector.
- Connect the 2 HO2S electrical connectors.