Jeep Comanche 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

(9)

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

(9)

Valve Cover Gasket Replacement Service

How much does a Valve Cover Gasket Replacement cost?

On average, the cost for a Jeep Comanche Valve Cover Gasket Replacement is $118 with $23 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1992 Jeep ComancheL4-2.5LService typeValve Cover Gasket ReplacementEstimate$172.07Shop/Dealer Price$196.34 - $246.65
1987 Jeep ComancheL4-2.5LService typeValve Cover Gasket ReplacementEstimate$214.41Shop/Dealer Price$247.41 - $312.63
1986 Jeep ComancheL4-2.5LService typeValve Cover Gasket ReplacementEstimate$214.41Shop/Dealer Price$247.41 - $312.62
1991 Jeep ComancheL6-4.0LService typeValve Cover Gasket ReplacementEstimate$143.05Shop/Dealer Price$165.06 - $208.60
1992 Jeep ComancheL6-4.0LService typeValve Cover Gasket ReplacementEstimate$143.05Shop/Dealer Price$165.10 - $208.67
1989 Jeep ComancheL6-4.0LService typeValve Cover Gasket ReplacementEstimate$140.97Shop/Dealer Price$162.48 - $204.48
1989 Jeep ComancheL4-2.5LService typeValve Cover Gasket ReplacementEstimate$221.91Shop/Dealer Price$254.71 - $319.76
1987 Jeep ComancheL6-4.0LService typeValve Cover Gasket ReplacementEstimate$155.97Shop/Dealer Price$178.74 - $221.69
Show example Jeep Comanche 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 Jeep mechanics

Real customer reviews from Jeep owners like you.

Excellent Rating

(9)

Rating Summary
8
0
0
0
1
8
0
0
0
1

Horus

11 years of experience
122 reviews
Horus
11 years of experience
Jeep Comanche L6-4.0L - Serpentine/Drive Belt - San Antonio, Texas
knows his stuff.

Augie

31 years of experience
263 reviews
Augie
31 years of experience
Jeep Comanche L6-4.0L - Car is not starting - Santa Clarita, California
Augie was professional and courteous. I was nervous the issue wouldn't get solved because of older year of my vechicle, but he was able to figure out the problem in a timely manner. He put all my worries at ease. I appreciate him and all his efforts! Thank you, Augie!

Luis

12 years of experience
78 reviews
Luis
12 years of experience
Jeep Comanche L6-4.0L - Not able to change gears - Albuquerque, New Mexico
Luis showed up right on time and gave a clear, concise diagnosis.

Horus

11 years of experience
122 reviews
Horus
11 years of experience
Jeep Comanche L6-4.0L - Crankshaft Harmonic Balancer - San Antonio, Texas
great mech.

Excellent Rating

(9)

Rating Summary
8
0
0
0
1
8
0
0
0
1
Number of Jeep Comanche services completed
99+
services done by our mechanics
TOTAL NUMBER OF EXPERT Jeep MECHANICS
1300+
experts on our platform

Recent articles & questions

Are Switches Inside a Car Waterproof?
The The electrical switches inside your car control functions throughout your vehicle. You have switches that turn your headlights and radio on or off, adjust the volume of your sound system, open the power windows, and lock the power door...
Symptoms of a Bad or Failing Headlight Bulb
If the headlights are dim, flickering on and off, or will not come on at all, you may need to replace the headlight bulbs.
Rules of the Road For Tennessee Drivers
Whether Whether you’ve recently moved to Tennessee, you’re visiting on vacation, or you’ve lived in this beautiful state your whole life, you might be surprised at some of the specific state traffic laws you’ll find here. To make sure you’re...

Clicking/clunking noise coming from passenger side when car accelerates or when the transmission is down shifting it seems.

If the clicking noise is fast and repetitive, and occurs when turning and accelerating, the noise can often be from a failing CV joint, which is part of the axle shaft on each of the drive wheels. If its a...

Car throws code: P0301 even after I have changed spark plugs, fuel injector, fuel filter, ignition coils.

The engine intake near cylinder one should be checked when first started to see if there is any vacuum leaks at intake gasket (https://www.yourmechanic.com/services/intake-manifold-gaskets-replacement) or the injector O-ring. If no vacuum leaks are found then you may be having a...

Reduced rpm

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