Dear Experts,

I have a 1996 Honda Accord
2.2 VTEC engine. 5 speed

In the engine compartment, there is a hose that
runs from the air intake tube to the
valve cover assembly.

See the picture.

What is the name of this tube and/or
what is it used for?

Thanks a lot!

 

it allows fresh air into the engine, on the backside the pcv then allows inert air to get sucked into the intake off idle to lower combustion temps and NOX. If you don't like it you can put a small filter off the valve cover. Guys with catch cans often completely **** up the system leading to other issues. The crankcase should not be air tight, it needs this, a vent, or ideally a vacuum on it.

 

and why is the cooling hose joined to it?

 

Thanks for responding.

If I read this correctly then,
it's a hose that allows the engine to breathe.

The arrow in this tutorial says that it's a
breather hose (Not the PCV)
filtsai.com - Valve Cover Removal

So, the air flow is from the valve cover, to
the air intake hose, Correct?

Thanks again.

 

 

 

It's the fresh air feed for the PCV system.
PCV system not only removes blowby and keeps other bypass gasses out of the engine but burns them by feeding them into the intake manifold to be burned.
PCV system also aids in sealing the engine from oil leaks by reducing pressure in the crankcase.
PCV system also keeps the ring seal on the pistons stabilized for better compression/combustion.