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Old 04-24-11, 03:06 PM   #1 (permalink)
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Car 1: 1999 Acura CL 3.0
1999 CL 3.0 Oil leaks

Where do these engines leak? The car leaks oil when I fill the oil over the bottom line on the stick. I have changed the valve cover gaskets and checked the cam seals and the main crank seal and they are clean I know the PS pump leaks a little and there isn't oil on the transmission side. Do the oil pans leak? Also I have stuffed a paper towel between the oil filter holder and the block and it gets a lot of oil buildup but I cannot see where it leaks. The oil doesn't drip unless I fill the engine near the top of the dip stick fill line.

The car has 155,500 miles I do all the maintenance and I am the original owner.

Last edited by medium1; 04-24-11 at 03:54 PM.
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Old 04-24-11, 03:31 PM   #2
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how much does it leak? a couple drops or if you keep pouring it in then it pours out. Best way to find a leak like this is to put a piece of cardboard under the engine, fill it up, then you can see what part of the engine its leaking from, that is which side, then check out the engine and see where the trail of fresh oil is coming from. Oil pan gaskets do start to leak after they get old so that is a possible cause for sure. I couldn't tell you about any chronic leaking points on that engine though.
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Old 04-24-11, 03:54 PM   #3
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Car 1: 1999 Acura CL 3.0
It's a small leak a drip now and then but I would like no leak. I see the oil but cannot tell for sure where it is coming from. It drips from the drain bolt but any leak will end up there. There is a little oil on the pan screws but again it could come from higher up.
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Old 04-24-11, 06:07 PM   #4
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It could be coming from the drain bolt. If the washer has been re-used a lot then that is entirely possible. If you're having trouble following the leak over the engine then you may need to thoroughly clean and degrease the motor so you can track it down. Finding dirt on a dirty engine is going to be difficult for sure.
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Old 04-24-11, 06:45 PM   #5
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Definitely not the drain bolt and it is very hard to see to the source of clean oil on a clean engine, I keep the engine compartment very clean. The rear of the engine is very difficult to see I even put florescent die in the oil. I need an answer from someone that is familiar with this engine.
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