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Which hose is this?

Posted: Tue Mar 08, 2016 8:02 am
by KozmoNaut
I was rummaging around under the bonnet, trying to identify the cause of the rattly/resonance-y sound my 406 (2.2L EW12J4) makes at ~1900 RPM, when I noticed this hose looking a bit worse for wear.

Can anyone identify it? It seems to be going to the air filter box, but I'm not 100% sure. It's on the right side of the engine, when looking at it from the front.

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(Click for embiggening)

Since there is no hose clamp on it, I assume it isn't vital to performance or economy or anything of that nature. But I would still love to know what it is :-)

Re: Which hose is this?

Posted: Wed Mar 09, 2016 1:24 pm
by 406Break
Looks like it could be a part of the Exhaust gas recycling circuit.
Depending on engine serial no. (small differences)
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Re: Which hose is this?

Posted: Wed Mar 09, 2016 1:53 pm
by KozmoNaut
It looks like hose #8 on those diagrams. I've patched it up with some tape.