Right exhaust manifold gasket replacement

2000 FORD EXPEDITION

450,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC

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I have taken my truck into several mechanics and they tell me the same thing my right exhaust manifold has a leak. My truck makes a loud noise and sometimes slow acceleration and sometimes cuts off on me at a stop. Last mechanic i took it to actually looked at it and it bolts ad nuts had been replaced but one of the nuts had come off so that is most likely the reason it has the leak. so basically i need to know how to replace the gasket. Because all the places i been to have wanted $200.00+ to do it and i just can't afford that. Also my check engine light has not come on and i drive this vehicle everyday.

Jan 22, 2020 at 9:17 AM

ASEMASTER6371

CERTIFIED EXPERT
52,796 POSTS

Good afternoon.

I attached the procedure with pictures for you.

I will warn you, it is a tight area you will need to access.

Roy

Removal
1. Raise and support the vehicle.
2. On 4x4 vehicles, remove the front wheel opening molding.
3. Remove the front fender splash shield.

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4. Note: 4.6L engine shown; 5.4L engine similar.

Remove the three-way catalytic converter to exhaust manifold nuts.

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5. Remove the eight (A) nuts and the (B) exhaust manifold.

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6. Remove and discard the exhaust manifold gasket.
7. Clean and inspect the exhaust manifold.

Installation

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1. To install, reverse the removal procedure.

Images (Click to enlarge)

Jan 22, 2020 at 1:01 PM