Skip the auto shop - Our mechanics make house calls

Q: Valve cover gasket replacement.

asked by on

What is the difficulty level to replace the valve cover gasket on a 2004 Lincoln Aviator? What parts will I need to do it myself? Also, Does the valve cover need to be torqued to a specified weight?

My car has 240000 miles.
My car has an automatic transmission.

A: The engine in this vehicle is a DOHC 4.6 li...

The engine in this vehicle is a DOHC 4.6 liter engine. The replacement of the valve cover gaskets require the mechanic to be at a mid level of experience or lesser experienced mechanic using the proper manual for the repair. You will need to know how to drain and refill the cooling system. Remove valve covers following basic components removal for access to both valve covers. Remove all the ignition coils. Remove all the cover bolts and remove cover. You will need coolant, valve cover gaskets and ultra grey silicone sealer. Replace gaskets noting where silicone was put on head at joints and tight curves then cover put on within 4 minutes or sealer will need to be cleaned out and new put on. Install cover and torque bolts evenly until a final torque of about 85 inch lbs. Reinstall all the removed parts for access and refill coolant. This would be a good time to change oil and filter. If you do not feel you can do the work then have a mechanic like one from YourMechanic do the work for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car shaking and making noise.

Not being able to hear the noise, it is hard to make an accurate determination as to the cause, but if it is a creaking noise while turning the wheel it could be a worn steering rack or tire rod....

Q: My engine is knocking.

The noise you are hearing is a pretty common issue in these engines. The noise is caused by one or more of the cylinder head camstand cam followers along with the valve springs. This engine has high cam failures and...

Q: Idle problem

You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...