logo

Cadillac Allante 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

(15)

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

(15)

Valve Cover Gasket Replacement Service

How much does a Valve Cover Gasket Replacement cost?

On average, the cost for a Cadillac Allante Valve Cover Gasket Replacement is $514 with $136 for parts and $378 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 Cadillac AllanteV8-4.5LService typeValve Cover Gasket ReplacementEstimate$796.96Shop/Dealer Price$895.61 - $1147.60
1993 Cadillac AllanteV8-4.6LService typeValve Cover Gasket ReplacementEstimate$1173.34Shop/Dealer Price$1323.53 - $1743.06
1992 Cadillac AllanteV8-4.5LService typeValve Cover Gasket ReplacementEstimate$769.03Shop/Dealer Price$858.23 - $1103.14
1991 Cadillac AllanteV8-4.5LService typeValve Cover Gasket ReplacementEstimate$769.03Shop/Dealer Price$858.22 - $1103.12
Show example Cadillac Allante 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

Number of Cadillac Allante services completed
165+
services done by our mechanics
TOTAL NUMBER OF EXPERT Cadillac MECHANICS
1000+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Cadillac mechanics

Real customer reviews from Cadillac owners like you.

Excellent Rating

(15)
Rating Summary
14
0
1
0
0
14
0
1
0
0

Frank

31 years of experience
60 reviews
Request Frank
Frank
31 years of experience
Request Frank
by R.
Cadillac Allante V8-4.1L - Water Pump - Dover, Florida
Very competent, professional individual. Was on time, worked steady until the job was finished, offering advice as items surfaced. Upon completion of the job cleaned to the point as though he had never been here.

Ben

42 years of experience
1589 reviews
Request Ben
Ben
42 years of experience
Request Ben
by Ned
Cadillac Allante V8-4.1L - Brake System Flush - Houston, Texas
On time and good job.

Travis

14 years of experience
691 reviews
Request Travis
Travis
14 years of experience
Request Travis
by brooks
Cadillac Allante V8-4.5L - Spark Plug Replacement - Minneapolis, Minnesota
TRAVIS WENT OVER THE TOP FOR !!!!!! YOU PEOPLE ARE VERY VERY LUCKY TO HAVE HIM, HE REALLY KNOWS HIS BUSINESS AND HE KNOWS HOW TO GET IT DONE, I WILL RECOMMED HIM TO MANY PEOPLE IN OUR CAR CLUB. THANKS AGAIN FOR A PERFECT JOB !!!!!!!!!!!!!

William

35 years of experience
731 reviews
Request William
William
35 years of experience
Request William
by DON
Cadillac Allante V8-4.1L - Serpentine/Drive Belt Replacement - Surprise, Arizona
Couldn't be happier with William and your come to the house service as well. William is a gem.

Excellent Rating

(15)
Rating Summary
14
0
1
0
0
14
0
1
0
0
Number of Cadillac Allante services completed
165+
services done by our mechanics
TOTAL NUMBER OF EXPERT Cadillac MECHANICS
1000+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

A Buyer’s Guide to the 2012 Acura TL
The The 2012 Acura TL has softened features, great fuel economy, and an overall fresh feel compared to past model years. The interior has an elegant and sporty feel to it making it comfortable to ride in. Furthermore, it costs...
Read more
How Long Does a Trunk Lock Cylinder Last?
A A car has a variety of different safety features that will allow them to keep would be thieves at bay. Among the most beneficial of these safety features are the locks that you have on your doors and on...
Read more
How to Replace a Wheel Speed Sensor
A car wheel speed sensor helps control the anti-lock brake system by determining if a wheel is moving at a different speed than the other wheels.
Read more

I got rust in my engine is there a way to get rid of it in truck?

The rear ABS sensor is mounted in the top of the rear differential. I am not sure if your question is about rust in your engine? Can you clarify the question? You also mention a problem about the engine dying...
Read more

Convertible top fluid brand

Hello there. When checking the fluid, the top must be in the service position for an accurate reading. This should show the fluid level at the proper level once the top is in the service position. The bolt and washer...
Read more

How much horsepower does my car have, and what is the correct tire pressure?

Hi there. According to the factory, your 2009 Jeep Wrangler with the 3.8L V-6 engine has 202 horsepower. The recommended tire pressure for your vehicle, assuming it's a Rubicon edition, would be 37 lbs of pressure on all four tires....
Read more
  1. Home
  2. Estimates
  3. Cadillac
  4. Allante
  5. Valve Cover Gasket Replacement

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

Read FAQ
GET A QUOTE