Lincoln Aviator 2020-2025 Service Manual / Powertrain / Engine / Engine System - General Information / General Procedures - Exhaust Manifold Cleaning and Inspection

Lincoln Aviator: Engine System - General Information / General Procedures - Exhaust Manifold Cleaning and Inspection

Special Tool(s) / General Equipment

Feeler Gauge

Cleaning

Clean the exhaust manifold using a suitable solvent. Use a plastic scraping tool to clean the gasket sealing surfaces.

Inspection

NOTE: New exhaust manifold gaskets, studs, nuts and/or bolts must be installed when an exhaust manifold is serviced.

NOTE: Use a Straightedge that is calibrated by the manufacturer to be flat within 0.005 mm (0.0002 in) per running foot of length, such as Snap-On® GA438A or equivalent. For example, if the Straightedge is 61 cm (24 in) long, the machined edge must be flat within 0.010 mm (0.0004 in) from end to end.
Using the Straightedge and a Feeler Gauge Set, check the exhaust manifold sealing surface for warpage. If the warpage is greater than 0.76 mm (0.0299 in), install a new exhaust manifold.
Use the General Equipment: Feeler Gauge

General Procedures - Cylinder Head Distortion

Special Tool(s) / General Equipment Feeler Gauge Check NOTE: Refer to the appropriate Section 303-01 for the specification. NOTE: Make sure all cylinder head surfaces are clear of any gasket material, silicone sealant, oil and coolant...

General Procedures - Piston Diameter

Check Measure the piston diameter 90 degrees from the piston pin and piston diameter (DN) height down from the top of the piston at the point indicated...

Other information:

Lincoln Aviator 2020-2025 Service Manual: Description and Operation - Vehicle Dynamic Suspension - Vehicles With: Air Suspension - System Operation and Component Description

System Operation System Diagram Item Description 1 HS-CAN2 2 HS-CAN1 3 HS-CAN3 4 SUMA and Air Compressor Assembly 5 LHF Air Spring Solenoid 6 PSCM 7 PCM 8 ABS 9 LHF Height Sensor 10 RHF Height Sensor 11 LHR Height Sensor 12 RHR Height Sensor 13 BCM 14 RHF Air Spring Solenoid 15 LHR Air Spring Solenoid 16 RHR Air Spring Solenoid 17 IPC 18 RCM 19 GWM Network Message Chart Module Network Input Messages - SUMA Broadcast Message Originating Module Message Purpose ABS active ABS module Indicates the current ABS activity, on or off...

Lincoln Aviator 2020-2025 Owners Manual: 10-Way and 12-Way Seat Controls

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Seatbelt Height Adjustment

WARNING: Position the seatbelt height adjuster so that the seatbelt rests across the middle of your shoulder. Failure to adjust the seatbelt correctly could reduce its effectiveness and increase the risk of injury in a crash.

Adjust the height of the shoulder belt so the belt rests across the middle of your shoulder. Slide the adjuster up to raise the belt. Press the button and slide it down to lower the belt.