Q: Oil leaking out and I keep replacing gaskets

asked by on

The valve cover in my 2007 Hyundai Santa Fe has a bad habit of leaking oil everywhere. I have replaced the gasket twice and the whole valve cover once as well. Now it is leaking again and it is affecting the alternator as well. I need to get this to stop. Why does this keep happening? This car is not old, it only has 77,000 miles on it!

The valve cover gasket is a rubber type seal that keeps oil from coming out of the engine. When the mechanic replaces the seal, they must clean the head surface thoroughly, wipe it down with brake cleaner, and dry the surface. They then apply a small bead of silicone at the joint between the head and front timing chain cover and LOCTITE 5900 at cam end caps. Finally, they make sure to torque all the bolts. After, they inspect the positive crankcase ventilation (PCV) system for needed service and replace the PCV valve that controls the crankcase pressure. If the pressure is excessive the pressure will push oil out of the oil seals such as those on the valve covers. If the PCV system is ok, they will check for excessive piston ring leakage. A mobile mechanic, such as one from YourMechanic, can replace your valve cover gasket, and make sure it is properly installed so it doesn’t leak.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Oil leaking out and I keep replacing gaskets

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

Get a quote

What others are asking

Q: My 2010 Ford Escape vibrates a lot. There are no leaks at all. What could be the cause?

If the vibration happens when you're stopped at a red light, then it's more than likely caused by a vacuum leak, or fuel or ignition system component failure. Typically, the first three parts that would be inspected are the idle...

Q: How do you know if its really a timing chain gasket? And how long does it take to repair?

It is more likely that the water pump is leaking from its front seal. The leak will show up from the center of the motor area and will drip off the bottom of the timing cover. The timing cover on...

Q: Can I change a park neutral switch myself?

Yes, you can do it yourself, so long as you have the instructions in the Factory Service Manual. The switch has to be adjusted at installation. Prior to replacement you should confirm that the fault is in the switch versus,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...