Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLINCOLN2006NAVIGATOR 4WD V8-5.4L VIN 5REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTFUEL DELIVERY AND AIR INDUCTIONTHROTTLE BODYSERVICE AND REPAIR
2006 Lincoln Navigator 4WD V8-5.4L VIN 5
Throttle Body: Service and Repair
2006 Lincoln Navigator 4WD V8-5.4L VIN 5SECTION Service and Repair
THROTTLE BODY
Removal
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and can be ignited. Failure to follow these instructions may result in personal injury.
CAUTION: The throttle body bore and plate area have a special coating and cannot be cleaned.
1. Disconnect the battery ground cable.
2. Remove the air cleaner assembly.
3. Disconnect the electronic throttle control electrical connector.
4. Disconnect the throttle position (TP) sensor electrical connector.
5. Remove the 4 bolts and the throttle body (TB) assembly.
- Discard the TB O-ring seal.
Installation
1. Using a new O-ring seal, install the TB and tighten the 4 bolts in 2 stages.
- Stage 1: Tighten to 9 Nm (80 lb-in).
- Stage 2: Tighten an additional 90 degrees.
2. Connect the TP sensor electrical connector.
3. Connect the electronic throttle control electrical connector.
4. Install the air cleaner assembly.
5. Connect the battery ground cable.
Removal
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and can be ignited. Failure to follow these instructions may result in personal injury.
CAUTION: The throttle body bore and plate area have a special coating and cannot be cleaned.
1. Disconnect the battery ground cable.
2. Remove the air cleaner assembly.
3. Disconnect the electronic throttle control electrical connector.
4. Disconnect the throttle position (TP) sensor electrical connector.
5. Remove the 4 bolts and the throttle body (TB) assembly.
- Discard the TB O-ring seal.
Installation
1. Using a new O-ring seal, install the TB and tighten the 4 bolts in 2 stages.
- Stage 1: Tighten to 9 Nm (80 lb-in).
- Stage 2: Tighten an additional 90 degrees.
2. Connect the TP sensor electrical connector.
3. Connect the electronic throttle control electrical connector.
4. Install the air cleaner assembly.
5. Connect the battery ground cable.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.