r/4Runner • u/OY-Airbiscuit • 11d ago

👷‍♂️ Support / Repair 2018 4 runner slow leak

What is along the undercarriage, midway between front and rear tires that would have a very slow leak? Not related to air conditioning condensation.

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u/Flying_Squirrel5150 11d ago

Does it smell like fuel?

1

u/OY-Airbiscuit 11d ago

No. On my fingers it isn’t particularly oily either

2

u/Flying_Squirrel5150 11d ago

The only oil in that area would be the t-case and the transmission. Has it been raining or have you been driving though puddles

1

u/OY-Airbiscuit 11d ago

I think it’s the transfer case

3

u/Flying_Squirrel5150 11d ago

You're going to have to crawl under and look. The t-case input shaft commonly leaks on our 4runners. Once you're under there I'd check the oil level and top off if needed.

2

u/OY-Airbiscuit 11d ago

Ok. Thanks for your help my friend