How to service the intake air duct on 2003 Lincoln Navigator?

Service of the intake air duct requires you to remove the engine appearance cover first. The first step involves disconnecting the intake air temperature (IAT) sensor electrical connector after which users must remove the positive crankcase ventilation hose and the idle air control valve inlet tube. The air cleaner outlet pipe with resonator can be taken off through clamp removal. Processing the air cleaner outlet pipe installation requires a tight seal to block unmetered air from entering the engine while you should follow the uninstallation process in reverse to complete the work.

OEM 2003 Lincoln Navigator Air Duct

Air Hose

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2003 Lincoln Navigator Resonator Assembly
Part Number: 2L7Z-9B659-BB
Product Specifications
- Other Name: Hose - Air
- Base No.: 9B659
- Item Weight: 2.50 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 2L7Z-9B659-BB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Lincoln Navigator Submodels:
- Base, Luxury, Ultimate | 8 Cyl 5.4 L GAS

2003 Lincoln Navigator Air Duct

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2003 Lincoln Navigator Air Duct Parts Questions & Experts Answers

Q: How to service the intake air duct on 2003 Lincoln Navigator?
A: Service of the intake air duct requires you to remove the engine appearance cover first. The first step involves disconnecting the intake air temperature (IAT) sensor electrical connector after which users must remove the positive crankcase ventilation hose and the idle air control valve inlet tube. The air cleaner outlet pipe with resonator can be taken off through clamp removal. Processing the air cleaner outlet pipe installation requires a tight seal to block unmetered air from entering the engine while you should follow the uninstallation process in reverse to complete the work.