bad oil leak

astar12 · Post by **astar12** » 03 May 2011, 11:06

I have a 2000 Volvo s80 t6 twin turbo i clean the motor to find the leak and i can not find it . i had the car running on some car ramps and looked under the car cann't a leak.the car leaks only when i drive the car but the car will not leak when the car is running in park.

mlanctot · Post by **mlanctot** » 11 Oct 2011, 20:26

Did you ever find a solution. I think I have the exact same issue.

Post by **Juan62** » 11 Oct 2011, 20:49

If it only leaks after the car was driven, take some pics and posted here so we can help you much better. Top or bottom of the car?
Symptoms for Top of Engine: Oil cap seal (rubber)...change it every other oil change. Oil pressure sender unit, bad. CAM hole plug/cap, worn/leaks.

Symptoms for Bottom of Engine: Look at your Turbo Tubes and make sure hoses are connected and signs of leakage. Turbo Drain pipe seals are bad. Oil pan drain plug, tightened? Oil dip stick seal, torn. PCV (Flam Trap hoses/pipes).

Go to; www.ipdusa.com and put vehicle info in, under engine, take a look at the parts mentioned above to be familiar and its location. That will start the process, but with pictures, we can assist you better.

mlanctot · Post by **mlanctot** » 12 Oct 2011, 06:57

Here, I'll try to post a few pics.
To recap. New Cam Seals.
During idle no apparent oil leak.
After a short drive, oil is apparent on top of the engine. After more driving, oil is running down back of engine.

I spoke with a Volvo mechanic yesterday and he mentioned the oil trap as a possible cause. Excessive pressure building up internally to the engine. Not sure if the trap would just need to be replaced. Any suggestions are welcome.

Thanks

Post by **Choguy03** » 12 Oct 2011, 07:32

The oil trap being plugged/lines would cause smoke to come out of your dipstick tube. I don't remember where I saw it on here, but someone had a video. I have 170k on my S40 and my trap was quite clean and my hoses were fine. I would check the oil filler cap. My o-ring was so unpliable that the seal was bad. $6.99 from auto zone and my problems were fixed.

Post by **Juan62** » 12 Oct 2011, 09:32

I concur with Choguy;
Clean that up and Go the cheapest route first: Oil cap rubber seal. If still leaks, Flam Trap, which will need replacing eventually. When you decide the Flam Trap, order the kit...ipdusa.com and fcpeuro.com, and many others (at the top of this forum Volvo parts).

mlanctot · Post by **mlanctot** » 12 Oct 2011, 09:47

If it only leaks after the car was driven, take some pics and posted here so we can help you much better. Top or bottom of the car?
Symptoms for Top of Engine: Oil cap seal (rubber)...change it every other oil change. Oil pressure sender unit, bad. CAM hole plug/cap, worn/leaks.

Symptoms for Bottom of Engine: Look at your Turbo Tubes and make sure hoses are connected and signs of leakage. Turbo Drain pipe seals are bad. Oil pan drain plug, tightened? Oil dip stick seal, torn. PCV (Flam Trap hoses/pipes).

It appears that the oil starts up top and then runs down side and back of engine. The cap gasket is hard and the original one. I've owned the car for about 10 years and now my son has it. Oil is not originating at the cap. It seems to be coming from the second spark plug fron the VVT Cam side. As I stated, only when driven. You can idle this thing with no oil leaks. Where is the CAM hole plug / cap? and oil sending unit?

Post by **Choguy03** » 12 Oct 2011, 09:56

I would change the oil filler cap first. Clean everything up and drive for a day then a week and see what happens. I would start there first. If you are getting oil coming from the spark plug hole (cylinder 2) then you should pull the plug and take a look. My plug was oily but because the oil was coming from the cap and spilling over into the spark plug well.

mlanctot · Post by **mlanctot** » 12 Oct 2011, 10:43

Yea, it not from the spark plug itself but near by. I think tonight I shall jack up the car and run it without the spark plug cover, maybe then I can see what is really going on.

Post by **Choguy03** » 12 Oct 2011, 10:47

Be sure to change that oil filler cap. CST Part Number: 8131 from Autozone.