Oil leak coming from the back of the engine driver's side?

2006 TOYOTA COROLLA

75,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC

ROBERT WALBROEHL

MEMBER
116 POSTS

Hello,

Noticed oil leak and appears to be coming from back side of engine on driver's side. It's wet up pretty high near valve cover and was wondering if something could be pressurizing the area underneath the cover forcing oil out like a PCV valve or if it's just a gasket or something else in the area.

Apr 30, 2024 at 1:48 PM

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,194 POSTS

Hi,

In most cases, it is the valve cover gasket that fails and begins to leak. With only 75,000 on this engine, it would be very unlikely that there is excessive crankcase pressure causing an issue.

As far as replacement is concerned, here is a link that explains in general how it is done. It isn't a difficult job. However, it is important to make sure both surfaces where the gasket will be contacted are both properly cleaned and dry before installation.

https://www.2carpros.com/articles/replace-valve-cover-gasket

Let me know if this helps.

Take care,

Joe

Apr 30, 2024 at 7:03 PM

STRAILER

✓ASE Certified Mechanic
54,832 POSTS

Here is how the job is done on your car. Check out the images (below). Please upload pictures or videos in your response to any problems so we can see what to help you with.

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Professional Diagram for 2CarPros Members
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Apr 30, 2024 at 7:38 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.