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Oil leaks from underneath the car

Tiny
ISAACY2K4
  • MEMBER
  • 2001 TOYOTA HIGHLANDER
  • V6
  • 4WD
  • AUTOMATIC
  • 194,000 MILES
I started noticing oil leaks on the floor after parking the car for some time. I decided to check and I observed some oil dropping from what appears to be the axle of the car from both the front and rear axles. I would like to know two things: 1st, how to check the quantity of axle oil and 2nd what to do about the leaks. Thanks.
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Saturday, February 5th, 2022 AT 10:09 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

On the side of the differential, there is a check plug for the fluid.
First, park the vehicle on a flat surface. Then you can remove the plug. The fluid level should be just below the opening of the plug. Toyota calls for it to be 0.5mm below the opening.
Anything below that is considered to be low fluid level.

This vehicle uses 85W-90 gear oil.

As for the leak, it will depend on where the leak is coming from. It could be the gasket that is on the differential cover. Or it could be from the seal.

Here is a helpful guide:

https://www.2carpros.com/articles/differential-service

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Saturday, February 5th, 2022 AT 10:43 PM

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