Q: Valve cover gasket replacement.

asked by on November 16, 2016

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.

Valve Cover Gasket Replacement $100.87 - $1008.07 Get a Quote
Cooling System Flush $178.82 - $224.54 Get a Quote
Change Oil and Filter $92.43 - $157.60 Get a Quote

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Loud, hot-rod type sound when driving

Hello. It sounds like the catalytic converter gaskets may be causing a leak in the exhaust system. It is also possible that there is a leak or bad baffle in the muffler. This may be causing the hot-rod sound. It...

Brakes or transmission causing my vehicle to not speed up. It feels like something is dragging.

Hi there. This sounds like the rear brakes on your vehicle are not adjusted right or the brakes are in need of service. The rear brakes on your vehicle are producing a brake drag after the brakes are applied, and...

Engine, power steering, and power braking failed while driving, now won't start

The problem sounds like the charging system or battery failed. Have the vehicle jump started to see if it starts and have charging system tested with battery load tested to see if you need an alternator and/or battery.

When I put the car on Drive or Reverse the iddle speed drops, what is wrong?

Depending on how severe the idle drop is when putting the vehicle in gear, this may or may not be an issue of concern. Some slight drop in RPM is normal, but too much (i.e. more than ~250 RPM or...

Car quit and won't restart

The intake gasket on these engines are known to fail and you will get a large amount of unmetered air. A smoke test will reveal if the gaskets are leaking. If the intake gasket is leaking, the repair is extensive....

Do u think if I install leveling kit on my trundra just the front 2 inches I'll mess up my truck?? I just don't like the way they

Your truck ride height is set from the factory and any modifications could jeopardize your vehicle warranty. Lets look at some pros and cons if you alter the front end ride height. Pros: The truck will look more level...

Shifting into 2nd at high RPM

Hi there. It is very possible that the speed sensor or shift solenoid is the primary source of this type of issue with the first to second shift. However, a worn out torque converter or an obstruction inside the transmission...

My 2004 suburban has D 3 2 1 what should I drive in D or 3

The computer controlled automatic transmissions in today's vehicles are designed to be completely intuitive. You will not gain any performance advantage, or gain in fuel economy, by driving around town with the shifter in the 3 setting. For the best...

Clicking sound when the car is slowing down or stopping

Hello there. In most cases when you hear a repeating clicking sound as you brake, it is likely coming from one of three sources. First, it could be a wheel bearing that is wearing out. Second, it might be a...

Related articles

Symptoms of a Bad or Failing Valve Cover Gasket
Common signs of a faulty gasket include a burning oil smell, dirty valve cover, oil leaks, low engine oil, and a rough-running engine that misfires.
What Is the Purpose of Engine Gaskets?
Engine gaskets work as seals to maintain pressure, hold fluids, and prevent debris from entering the engine. Gaskets are vital for engine performance.
Symptoms of a Bad or Failing Oil Pan Gasket
Common signs include smoke coming from the engine, oil puddles under the car, and lower than normal oil levels.