2 replies to this topic

[paroikoi]

Hello,
I'm new to this forum. I have a 2001 V70XC I've had for a couple years. A few months ago, it started dripping oil. It would drip a drip a day or so and has steadily increased. Now it's dripping pretty quickly, maybe a drip every 5-10 minutes. I've cleaned the engine externally to try to find the source of the leak. The most I can narrow it down to is a small slot on the bottom of the engine between the oil pan and the transmission. It is shown in these photos:





Can any of you offer advice on troubleshooting I can do? Would a clogged PCV system cause this, or is it likely something worse, like the oil pan gasket or even the rear main seal? I am up to doing moderately complicated repairs, but troubleshooting is always an adventure.

Also, it seemed to start when I switched from 10W30 oil to 5W30. But again, the leak has progressively gotten worse.

Thanks in advance,
Josh

[JimLev1]

I'll have to guess it's the rear main seal on the crankshaft. Got any pics not so close up? When my wife's S60 was 2 weeks old it started leaking oil from the rear main seal. Volvo fixed it and it now has 90K on it, no leaks.

[Chilled Man]

Rear main seal

Pull engine and tranny to fix

but first fix the PCV and replace that.

The leak might go away after that.