This part is covered in a dark fluid. Does not appear to be engine oil but I suppose it could be. I don’t know what these pipes are, or from where this fluid could be coming. Any ideas?


I know I haven’t given you much information here.

 

These are transmission fluid cooling pipes. Leaking of thiselement is a common occurrence. There are no new ones, but you can try to find old supplies. Disassembly and regeneration is an equally good solution. Make sure that it is not an engine oil leak after all, most likely from under the timing cover or valve cover.

 

As posted above the transmission cooler lines are weeping. If you inspect them it will be where the rubber hose is crimped onto the Aluminum tubes. You can change the entire line assembly but I cut and then peeled the crimped ferrule off (Carefully!) with my Dremel tool and then reused the metal tubes with new hoses. The metal tubes have an upset on the ends that helps retain the rubber hose. I use two clamps at each connection.




Plus this way you can leave the metal lines in place and just move them around to access the rubber hoses. If you want to swap the entire set of tubes and hoses be prepared as that will be a SOB! You can either bend the metal tubes when removing and installing the new lines. The (again carefully!) bend the metal back into shape.

The second way is to cut the metal tubes in the middle and then rejoin them with an adapter of some kind.
Both are way more work and vastly more expensive. The rubber hose replacement is the way to go. Especially if your trying to DIY the repairs.

Note I did this on my 2005 STR and that car also had leaking oil cooler hoses that can be repaired the same way.
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