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What do you guys think?

I don't know enough about car....but it looks loose to me.

Also when the engine is running, there is a leak sound from the left side of the engine area.

If you are referring to the fitting with the yellow paint on it....that is supposed to be like that. And it helps if you can identify the item you are referring to. Paint is your friend.

As for finding vacuum leaks. An easy way to do so is buy a can of Aerostart and, while the engine is running, spray it over all the vacuum hoses and pipe connections. You will notice what happens when you hit a vacuum leak. Spray a tiny bit into the air filter to test it out.

By 'left side of the engine area', you would be referring to the Turbo side....but I'm guessing you are saying left because it's on your left when you are looking at the engine bay from the front of the car. You will be able to hear the PCV valve sucking at idle and it makes a noise like a leaking vacuum hose. Check it all out anyway

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Hi guys, thanks for the replies.

Yes initially there was a very loud/obvious leak sound, I could hear it when I am inside the car and finally I found the split end of the hose!

I cut it and then connected back again.

Before I notice this split end, I posted the picture because it was in the night and too dark to identify the origin of the sound

so I could only suspect the yellow connection whether it is loose or supposed to be like that.

Since you guys said that it is supposed to be like that, i guess it should be fine.

(actually I still hear a sound tho....not the fan sound)

besides engine sound, fan sound, and a sound from the pod filter, I still hear another sound.

Can someone please confirm the Aerostart can be sprayed on any hose when the car is running? isn't it flammable?

is there any part I shouldn't spray?

I will do it. Last tank of fuel was 19L/100kms because of this leak.

post-51769-1224072078_thumb.jpg

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Hi guys, thanks for the replies.

Yes initially there was a very loud/obvious leak sound, I could hear it when I am inside the car and finally I found the split end of the hose!

I cut it and then connected back again.

Before I notice this split end, I posted the picture because it was in the night and too dark to identify the origin of the sound

so I could only suspect the yellow connection whether it is loose or supposed to be like that.

Since you guys said that it is supposed to be like that, i guess it should be fine.

(actually I still hear a sound tho....not the fan sound)

besides engine sound, fan sound, and a sound from the pod filter, I still hear another sound.

Can someone please confirm the Aerostart can be sprayed on any hose when the car is running? isn't it flammable?

is there any part I shouldn't spray?

I will do it. Last tank of fuel was 19L/100kms because of this leak.

Yeah, just don't spray it on your exhaust. Even if you did it would be fairly hard to start a fire as it evaporates before it does so.

I use this method all the time and have not once had an issue. Only spray it on the pipe connections and the vacuum hoses and you'll be fine.

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