MKZ AWD V6-3.5L (2008)
Exhaust Pipe: Service and Repair
Exhaust Y-Pipe - 3.5L
Removal and Installation
1. NOTE: Always install new fasteners and gaskets. Clean flange faces prior to new gasket installation to make sure of proper sealing.
With the vehicle in NEUTRAL, position it on a hoist.
2. If equipped, remove the 6 screws and the underbody shield.
3. Remove and discard the 2 exhaust Y-pipe-to-resonator nuts.
^
Discard the gasket.
^
To install, tighten to 40 Nm (30 lb-ft).
4. Remove and discard the 2 RH catalytic converter-to-exhaust Y-pipe nuts.
^
To install, tighten to 40 Nm (30 lb-ft).
5. Remove and discard the 2 LH catalytic converter-to-exhaust Y-pipe nuts and remove the exhaust Y-pipe.
^
Discard the gasket.
^
Tighten in 3 stages:
^
Stage 1: Tighten the passenger side nut to 5 Nm (44 lb-inch).
^
Stage 2: Tighten the driver side nut to 40 Nm (30 lb-ft).
^
Stage 3: Tighten the passenger side nut to 40 Nm (30 lb-ft).
6. To install, reverse the removal procedure.
^
Install new gaskets and nuts.
7. Start the engine and check for exhaust leaks.
