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  #1  
Old 12th June 2008
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Default Help! My oil would rather be on the ground...

I have an oil leak that is getting most of the engine nasty. I have already checked the valve cover and head bolts which are both fine. Oil pressure sensor was replaced less than a year ago and it still does not seem to be leaking.

There is oil on most of the bottom of the block but seems to be heavier on the front side(side w/ the belt). I was thinking the t-chain tensioner but it doesn't seem to be that. Could it be the oil pan "gasket"? I'm really not sure since oil is getting higher than that too.

Any thoughts/ideas on what is leaking?
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  #2  
Old 12th June 2008
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Your oil pan doesn't have a gasket but it could be leaking. I would try tighten the bolts on it to see if any are loose. Also check to see if it is actually oil and not power steering fluid or transmission fluid. As someone stated in a earlier post they thought they had a oil leak and it was coming from the bottol line on there power steering resovoir.
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  #3  
Old 12th June 2008
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I am nearly positive that it is oil, but i will check that steering fluid.

And yep, I know there isn't a gasket, its just sealed with a sealant.
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  #4  
Old 12th June 2008
Jssaab Jssaab is offline
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How many miles on your car?? Hi mile cars if the have chain slap can wear a hoole in teh timing chain cover...


Ho about the turbo lines or the return line to the sump?
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  #5  
Old 12th June 2008
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I also had one of my transmission lines leaking one time at the bottom of the radiator on the drivers side.
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  #6  
Old 12th June 2008
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I will be at 100k in the next week or so. It really seems to be the oil pan based on there being oil all round the seam of it, but it is also up higher on the block on the belt side.

I do think the turbo is getting a little looser as I have oil around my TB and it broke that little seal around the intake there. There is also a little oil around the transition from rubber to plastic intake piping from the intercooler to the TB.
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  #7  
Old 12th June 2008
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It is pretty common to have some oil in piping. But at throttle body you might even have a bad o-ring.

So do you see a significant loss of oil or just residue?
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  #8  
Old 12th June 2008
MI-Roger MI-Roger is offline
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A failing water pump bearing can cause the pump's pulley to eat thru the front engine cover. Result would be oil leaking from around the belt area.
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  #9  
Old 13th June 2008
euroteck2 euroteck2 is offline
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Lightbulb dirty oily mess...

if its above your oil pan and also on the timing chain it very well could be the cover. timing cover that is. best place to start is the car wash. clean it as best you can. drive it a while and then look for leaks
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  #10  
Old 13th June 2008
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Have you done the PCV update? I had an oil leak in that same general area until I did PCV #6.
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  #11  
Old 18th August 2008
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Yesterday, I replaced the air filter and took it for a test drive. Bad idea, when I got out it smelled like burning oil and when I would go around a turn the oil pressure light would come on . I checked the oil and there was not much left. I had leaked out at least 2 quarts... The whole rear of the engine by the firewall has oil on it and there is oil coming out around the throttle body. I can't figure out the problem. The oil pressure switch is new at about 1 yr old now. I checked the valve cover and its good.
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  #12  
Old 18th August 2008
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bro we can only give suggestion on what to but honestly it sounds like you need to either get under the car to see fi anything is leaking or take it to a mechanic. I think it is your oil sending unit because of how much is leaking out at once.
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  #13  
Old 18th August 2008
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Al's Red Wagon Al's Red Wagon is offline
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Try cleaning it up a bit first....I'm sure its harder to trace the source with oil all over th place...
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  #14  
Old 18th August 2008
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Quote:
Originally Posted by toxicavenger
bro we can only give suggestion on what to but honestly it sounds like you need to either get under the car to see fi anything is leaking or take it to a mechanic. I think it is your oil sending unit because of how much is leaking out at once.
I'm starting to think the same thing. I just hate that the thing is only about a year old.
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  #15  
Old 18th August 2008
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hey I know the feeling there bro. when I had bought my S4 the turbos crapped out on it a month later with no warning. Both turbos that is!
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  #16  
Old 18th August 2008
MikeFitz MikeFitz is offline
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had the same problem, replaced the front crank shaft seal. It cured the leak for a few days, now the rear seal is leaking. The leak is hard to isolate as it comes out from behind the cam belt. As Al says, clean it off first to trace the leak
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  #17  
Old 20th August 2008
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Since I refilled the oil on monday, it has leaked virtually dry today . It appears to be consuming more than leaking so I am afraid its my turbo. Theres oil around the charge pipe where it connects to the DV and oil all around the TB. I am taking the car in on friday to be diagnosed.
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  #18  
Old 20th August 2008
sandstrain sandstrain is offline
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Just a minor point, but if it's consuming oil then normally you would get blue smoke from the exhaust (particularly at your rate of loss). Sounds more like some sort of gasket /seal failure, or as somebody else has said, a ventilation failure causing the sump to become pressurised.
I'm sure the shop will sort it
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  #19  
Old 20th August 2008
euroteck2 euroteck2 is offline
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usaully in my expierience its the oil pressure sender just below the head and above the starter they love to leak . another thing to think about is leaking boost into your crankcase will blow oil out of any where it can. pcv issues are very similar in regards to building crank case vent pressure and blowing oil out wherever they can. taking it to a shop is good but this is what we do at the shop i work at. take your car out back and pressuer wash to motor and under side. if im scared it wont restart i leave it running after its clean i leave it running or start it up put it on a lift/jackstands and me and my flash light find the new oil path.
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