Lincoln Aviator: Exhaust System / Exhaust System - 3.0L EcoBoost

Exhaust System

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Description and Operation - Exhaust System - Overview

Overview NOTICE: Do not use leaded fuel in a vehicle equipped with a catalytic converter. In a vehicle that is continually misfueled, the lead in the fuel will be deposited in the catalytic converter and completely blanket the catalyst...

Other information:

Lincoln Aviator 2020-2026 Service Manual: General Procedures - Crankshaft Main Bearing Journal Clearance

Check NOTE: Refer to the appropriate Section 303-01 for the specification. NOTE: Crankshaft main bearing journals must be within specifications before checking journal clearance. Remove the crankshaft main bearing cap and crankshaft main bearing...

Lincoln Aviator 2020-2026 Service Manual: General Procedures - Spark Plug Inspection

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...