Leaking oil underneath the passenger side of the vehicle?

2007 TOYOTA COROLLA

226,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC

BUYRITEAUTO21

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I noticed some oil leaks underneath the passenger side of the vehicle. Some stains were up to 1-1/2 inches. It has happened after every time I drive it. The back corner of the engine looks like it has oil residue mixed with grime on the outside. I didn’t locate any source. Could you give any advice on where this would be coming from?

Oct 26, 2023 at 11:46 AM

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Yes, it sounds like it could be the valve cover, oil filter, drain plug, or oil pressure sender. Here is a guide to help and I have included the location of each so you can use a flashlight to check for the oil leak source:

https://www.2carpros.com/articles/engine-is-leaking-oil

This is how to raise the car up:

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

This video shows the valve cover being replaced:

https://youtu.be/RjnW9C7RFdc?si=MZutEM7B7ytwsL7L

Check out the images (below). Please let us know what happens.

Images (Click to enlarge)

Oct 26, 2023 at 4:58 PM