E86 Tube leaking - Help identifying it?

[samueld1135]

Hi all,

Noticed that this small white tube (highlighted in red in the images) near the engine can sometimes leak. Looking at it, it seems like it’s got a few kinks and possibly a crack at the bottom I can’t see. Noticed when it started letting out small amounts of white smoke every now and again. Considering this I believe it’s likely a coolant line or maybe water? Despite this coolant levels don’t seem to reduce much, and the engine never overheats.

I just can’t figure out what it is, and was wondering if anyone else may know so I can get it replaced. Any help would be greatly appreciated. (And I’m praying this isn’t a too expensive fix)

Thanks,
Sam

 

[bigwinn]

Those are electrical lines

Your leak will be oil escaping from the valve cover- needs a new gasket. It drops down onto the hot exhaust below

 

[Micke]

I’m 99% sure that it’s a cable for the upper lambda sensor.

 

[samueld1135]

Those are electrical lines

Your leak will be oil escaping from the valve cover- needs a new gasket. It drops down onto the hot exhaust below

Hey thanks for the timely response. I was worried it could be this, but the oil levels never seem to depreciate much either. Would they actually reduce or is it more a drop wise things typically?

 

[bigwinn]

A very small drop- capacity is 7.5L

 

[enuff_zed]

A very small drop- capacity is 7.5L

6.5?

 

[bigwinn]

6.5?

Freudian slip of the finger

 

[Zedebee]

6.5?

Why put in just enuff when you can go big ?