Lincoln Navigator: Exhaust System - 3.5L EcoBoost (272kW/370PS) / Muffler. Removal and Installation
Removal
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With the vehicle in NEUTRAL, position it on a hoist.
Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation).
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Remove the muffler and tailpipe.
Refer to: Muffler and Tailpipe (309-00 Exhaust System - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
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Loosen the clamps, and slide the clamps back on the muffler.
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Detach the isolators, remove the bolts and the muffler.
Installation
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Clean all exhaust connections before reassembly.
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Install the muffler, the bolts and attach the isolators.
Torque:
18 lb.ft (25 Nm)
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Tighten the clamps in the sequence shown.
Torque:
35 lb.ft (48 Nm)
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Install the muffler and tailpipe.
Refer to: Muffler and Tailpipe (309-00 Exhaust System - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
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Check the exhaust system for leaks.
Removal
NOTICE:
Do not use oil or grease-based lubricants on the isolators.
These lubricants may cause deterioration of the isolator. This can lead
to separation of the isolator from the exhaust hanger bracket during
vehicle operation...
Other information:
Special Tool(s) /
General Equipment
6.5 mm Drill Bit
Self-Piercing Rivet (SPR) Remover/Installer
Belt Sander
Blind Rivet Gun
Locking Pliers
Materials
Name
Specification
Metal Bonding AdhesiveTA-1, TA-1-B, 3M™ 08115, LORD Fusor® 108B, Henkel Teroson EP 5055
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Removal
NOTE:
The following procedure details re..
Inspection
NOTE:
Dropped spark plugs should always be discarded.
Unfired
An unfired spark plug should appear very clean
with a pure nickel finish to the threads and ground strap. The center
electrode ceramic insulator surface is often a matte or dull finish and
pure white in color. The external primary insulator is often a polished
white ceramic with appro..