Hummer H2 Valve Cover Gasket Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(127)

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.

Customer Ratings

(127)

Valve Cover Gasket Replacement Service

How much does a Valve Cover Gasket Replacement cost?

On average, the cost for a Hummer H2 Valve Cover Gasket Replacement is $155 with $41 for parts and $114 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 Hummer H2V8-6.2LService typeValve Cover Gasket ReplacementEstimate$220.27Shop/Dealer Price$252.84 - $323.55
2003 Hummer H2V8-6.0LService typeValve Cover Gasket ReplacementEstimate$196.27Shop/Dealer Price$228.86 - $299.59
2006 Hummer H2V8-6.0LService typeValve Cover Gasket ReplacementEstimate$196.27Shop/Dealer Price$228.86 - $299.58
2004 Hummer H2V8-6.0LService typeValve Cover Gasket ReplacementEstimate$196.27Shop/Dealer Price$228.83 - $299.54
2005 Hummer H2V8-6.0LService typeValve Cover Gasket ReplacementEstimate$196.27Shop/Dealer Price$228.88 - $299.62
2009 Hummer H2V8-6.2LService typeValve Cover Gasket ReplacementEstimate$196.27Shop/Dealer Price$228.86 - $299.58
2007 Hummer H2V8-6.0LService typeValve Cover Gasket ReplacementEstimate$202.27Shop/Dealer Price$234.70 - $305.30
Show example Hummer H2 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 Hummer mechanics

Real customer reviews from Hummer owners like you.

Excellent Rating

(127)

Rating Summary
120
5
0
0
2
120
5
0
0
2

Ben

34 years of experience
1419 reviews
Ben
34 years of experience
H2 2003 - Power Steering Pump - Houston, TX
Very thorough and honest. Went an extra miles to do the job right.

Robert

18 years of experience
191 reviews
Robert
18 years of experience
H2 2004 - Battery will not hold a charge - Irving, TX
Very thorough

Eduardo

15 years of experience
528 reviews
Eduardo
15 years of experience
H2 2003 - Serpentine/Drive Belt - Houston, TX
Simply the best

Eduardo

15 years of experience
528 reviews
Eduardo
15 years of experience
H2 2003 - Air Filter - Houston, TX
Simply the best

Excellent Rating

(127)

Rating Summary
120
5
0
0
2
120
5
0
0
2
Number of Hummer H2 services completed
1397+
services done by our mechanics
TOTAL NUMBER OF EXPERT Hummer MECHANICS
200+
experts on our platform

Recent articles & questions

2012 Nissan Rogue vs. 2012 Ford Escape: Which One Should I Buy?
Sport Utility Vehicles (SUVs) use the chassis of a truck to provide superior structure, with a larger size and often poor gas mileage. While that isn’t always true, SUVs have a raised ground clearance and are generally meant to haul...
Top 10 Used luxury Cars that Don’t Require Premium Gas
Generally, Generally, there’s an idea that if you drive a luxury car, you need to put premium gas (https://www.yourmechanic.com/article/do-you-really-need-premium-gas-by-jason-unrau) in your tank. The concept is almost as universal that luxury car owners have the money to fuel their cars with...
P3492 OBD-II Trouble Code: Cylinder 12 Deactivation/Intake Valve Malfunction
P3492 P3492 code definition P3492 is the fault code for what’s known as Cyl12 Deactivation/Intake Valve Ctrl Circ High. Cyl12 specifies that the issue is likely taking place in engine cylinder number 12. In some Dodge vehicles, this code indicates...

Transmission fluid leak

Hello. If you have transmission fluid coming from the front of your vehicle, then you either have a ruptured cooler line or the radiator has cracked where the cooler lines go. I would start by getting under the vehicle to...

Shaking while braking

Hello. I’ve had experience with new rotors being warped right out of the box. There is a limited warranty on the rotors from the store. If you can return them and get new front rotors or get them turned, that...

I have 99 mercury cougar the problem is after 10 min I drive the car kick on the cooling fan N keep on all the time i replaced temp cooling sensor still on

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 (855) 347-2779 · hi@yourmechanic.com