Lexus GS350 Valve Cover Gasket Replacement Costs

Estimate price near me

Service Location

Customer Ratings

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

Valve Cover Gasket Replacement Service

How much does a Valve Cover Gasket Replacement cost?

On average, the cost for a Lexus GS350 Valve Cover Gasket Replacement is $416 with $122 for parts and $294 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2015 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$568.86	Shop/Dealer Price$642.93 - $835.37
2010 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$756.38	Shop/Dealer Price$875.57 - $1217.97
2008 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$1427.93	Shop/Dealer Price$1562.18 - $1915.88
2011 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$756.38	Shop/Dealer Price$875.66 - $1218.13
2014 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$549.94	Shop/Dealer Price$623.02 - $814.72
2013 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$756.38	Shop/Dealer Price$876.17 - $1219.03
2007 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$1179.75	Shop/Dealer Price$1308.59 - $1658.24
2009 Lexus GS350V6-3.5L	Service typeValve Cover Gasket Replacement	Estimate$756.38	Shop/Dealer Price$875.66 - $1218.13

Show example Lexus GS350 Valve Cover Gasket Replacement prices

What is a valve cover gasket and how does it work?

Each cylinder head on your car’s engine has an aluminum or plastic valve cover bolted to it. Between this valve cover and the cylinder head, there is a gasket that keeps engine oil from leaking out. The valve cover bolts keep the gasket compressed, thus preventing leaks. Over time the gasket becomes brittle from the engine’s heat or the bolts loosen, creating an engine oil leak.

When to consider replacing a valve cover gasket?

Look for these signs of oil leakage at the valve cover gasket:

Oil seepage or dripping. Should the joint between the valve cover and the cylinder head fail, oil often becomes visible on the valve cover or cylinder heads. Usually, the oil will attract and hold dirt.
Oil accumulating inside the spark plug well. The spark plug tube seals are part of the valve cover sealing system. If the tube seals are leaking, you will see oil on the spark plugs or wires. The valve cover gasket and tube seals are all replaced at one time if either fails.
Oil leakage at the rubber grommets. The bolts holding the valve cover to the cylinder head sometimes have rubber grommet seals under the bolt heads. If these seals are leaking, you will see oil seepage around the bolt heads.

How do mechanics replace a valve cover gasket?

Remove engine cover. Some engines have plastic covers over the entire top. The plastic engine cover is removed to access the valve cover(s).
Remove components. On 4 cylinder engines, the valve cover is usually readily accessed once any electrical components and emission control tubing are removed, plus any accelerator linkages that might be in the way. On 6 or 8 cylinder engines, depending on which valve cover gasket is leaking, removal of the air intake plenum might be required, as well as additional steps.
Remove valve cover. Once the valve cover(s) is accessed, the cover retaining bolts are removed and the cover pulled off. The valve cover sealing surface is checked with a straight edge to be sure the cover is flat and thus reusable.
Install new gasket. The new valve cover gasket is applied along with new rubber grommets under the retaining bolt heads. If there are spark plug tube seals, these are replaced as well. In some applications, oil resistant RTV (room temperature vulcanization) sealant must be applied to specific segments of the sealing surface, along with the new gasket, to ensure a complete and effective seal. The cover is bolted back on, using a calibrated inch pound torque wrench, and all other components are restored to their original position.
Check for leaks. Finally, the car engine is run and a visual check is made for oil leaks.

Is it safe to drive with a valve cover gasket problem?

Yes, as long as the amount of oil leaking is small, and there is no leak onto hot engine parts such as the exhaust manifold, it is safe to drive your car until you have an opportunity to fix it.

If you notice oil leaking on to the ground beneath your car after it is parked, you do not have a small leak, and it needs to be found and repaired as soon as possible. Any leak, of course, means your oil level is dropping as you drive the car. If you have a leak, be sure to check your oil more frequently than usual so you do not run low on oil and damage the engine.

When replacing a valve cover gasket keep in mind:

The mechanical components of a car engine will typically outlive the gaskets used to seal the engine. However, many of these gaskets, including the valve cover gaskets, are relatively easy to replace.
Never add stop leak type products to engine oil or other vehicle fluids. Not only are these materials not approved or specified by the original equipment manufacturers, but they also can create additional problems that may be costly to repair.
Often, if a car is old enough to have a valve cover oil leak, there will be oil leaks elsewhere on the engine, so you should request a complete leak inspection. It may be more cost effective to repair multiple leaks during one service call.
Often, the PCV (Positive Crankcase Ventilation) valve is inserted into a rubber grommet in one of the valve covers. An old rubber grommet is a potential leak source, as well as connections to the PCV valve. These components should be inspected and considered for replacement while there is access to the valve cover.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(153)

Rating Summary

140

8

1

0

4

140

8

1

0

4

SEE REVIEWS NEAR ME

Kevin

37 years of experience

53 reviews

Kevin

37 years of experience

by John

Lexus GS350 V6-3.5L - Brake Pads Replacement (Front) - Narragansett, Rhode Island

Excellent mechanic! Knowledgeable, on time, easy process!

Allen

31 years of experience

49 reviews

Allen

31 years of experience

by Suzanne

Lexus GS350 V6-3.5L - Car is not starting - Las Vegas, Nevada

Very helpful!

Chris

16 years of experience

312 reviews

Chris

16 years of experience

by jon

Lexus GS350 V6-3.5L - Oil Change - Rancho Santa Fe, California

Chris was an excellent worker and very knowledgeable.

Mike

27 years of experience

265 reviews

Mike

27 years of experience

by Darryl

Lexus GS350 V6-3.5L - Pre-purchase Car Inspection - Ann Arbor, Michigan

Mike also took the time to answer other questions I had and was very informative. Very helpful!

Excellent Rating

(153)

Rating Summary

140

8

1

0

4

140

8

1

0

4

SEE REVIEWS NEAR ME

Recent articles & questions

Understanding Electric Car Batteries

Know how your electric vehicle's battery works to maximize its life and efficiency — and whether replacement is covered by manufacturer warranty.

How Long Does an Oil Cooler Last?

The The heat that the engine produces can produce a lot of damage in the right situation. Making sure that all of the systems on a car that reduce the heat of the engine are working properly is important. The...

How Long Does an Ignition Switch Last?

Most Most car owners fail to realize just how much work getting a car started is. In order for this process to work the right way, a variety of different parts on the car will have to work in unison....

Check Engine light on

The powertrain control module (PCM) takes inputs from dozens of sensors. It then uses this information to control outputs such as fuel delivery and emissions equipment. If the PCM detects a problem anywhere in the system it will illuminate the...

car wont start

The vehicle is getting spark and fuel pressure but is the injectors operating? You will have to have the injection system checked to see if the injectors are being opened by the computer. I have seen these cars get spark...

Possible causes of P0303 code 2009 Dodge Journey

Hi there - misfires (https://www.yourmechanic.com/article/how-can-problems-with-the-ignition-system-cause-misfiring_2) can be caused by worn spark plugs, failing coils, or injectors dumping too much (or no) fuel into a cylinder, causing a misfire. Yes, this could be a failing coil. Swap the cylinder #3 coil...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com