PCV on 1990 Loyale

[issjoe]

Hi Where is the pcv on a 1990 Loyale. I pulled the hose off the
passenger side valve cover. No pcv valve there. There is also a hose
coming off the drivers side valve cover.Is that where the pcv valve is?

 

[Tony Hwang]

Hi Where is the pcv on a 1990 Loyale. I pulled the hose off the
passenger side valve cover. No pcv valve there. There is also a hose
coming off the drivers side valve cover.Is that where the pcv valve is?

Hi,
Follw the hose to intake manifold.

 

[bg]

It's the steel nub welded to the intake after many years. If it has a
problem, remove the bigger problem, its called an egr valve. the spring,
along with your life, comes back to strength once egr is plugged/removed,
birds start singing, and the sun comes out. Sometimes the clock mysteriously
comes back on, from whence it left off.....

Happy subaroo-ing

 

[issjoe]

It's the steel nub welded to the intake after many years. If it has a
problem, remove the bigger problem, its called an egr valve. the spring,
along with your life, comes back to strength once egr is plugged/removed,
birds start singing, and the sun comes out. Sometimes the clock mysteriously
comes back on, from whence it left off.....

 Happy subaroo-ing






- Show quoted text -

And where is the EGR valve?

 

[Rick Courtright]

And where is the EGR valve?

Hi,

As Tony mentioned, follow the hoses up from the valve covers to a
T-style junction that leads to the back of the intake manifold. This
will be roughly just right of center of the engine (as you're looking
from front of car.) The PCV valve is a screw in unit w/ a rubber hose
(about 1/2" or 12-13mm) clipped on.

Now look to your left (again, as viewed from front of car toward back)
and on the back of the intake manifold you'll see a piece that's bolted
on to the back of the manifold (two bolts IIRC) that has a metal pipe
attached (the pipe might have some heat shield material over it) and
probably a small (probably around 1/8"-3/16" or 3-5mm) vacuum line
attached. This will be your EGR valve.

This is from memory, so if it isn't clear (or correct?), let us know and
I'll go look at the car directly.

Rick C

 

[issjoe]

Hi,

As Tony mentioned, follow the hoses up from the valve covers to a
T-style junction that leads to the back of the intake manifold. This
will be roughly just right of center of the engine (as you're looking
from front of car.) The PCV valve is a screw in unit w/ a rubber hose
(about 1/2" or 12-13mm) clipped on.

Now look to your left (again, as viewed from front of car toward back)
and on the back of the intake manifold you'll see a piece that's bolted
on to the back of the manifold (two bolts IIRC) that has a metal pipe
attached (the pipe might have some heat shield material over it) and
probably a small (probably around 1/8"-3/16" or 3-5mm) vacuum line
attached. This will be your EGR valve.

This is from memory, so if it isn't clear (or correct?), let us know and
I'll go look at the car directly.

Rick C

Thank you for such a good description. I wish my manual was that
understandable.

 

[Tony Hwang]

Thank you for such a good description. I wish my manual was that
understandable.

Hmmm,
Owners manual wont' but shop manual will.

 

[willardrentals]

It's the steel nub welded to the intake after many years. If it has a
problem, remove the bigger problem, its called anegrvalve. the spring,
along with your life, comes back to strength onceegris plugged/removed,
birds start singing, and the sun comes out. Sometimes the clock mysteriously
comes back on, from whence it left off.....

Happy subaroo-ing

Disconnect the EGR hose so your engine will ping under load, or the
timing will be retarded due to pinging, or your engine will run hot.
EGR does not reburn exhaust gas. EGR adds a small amount of exhaust
gas to lower the combustion chamber burn temperature. There are
better ways to lower the burn temperature to reduce pinging and NOx
emissions, but until you implement those methods you probably should
leave the EGR alone or make sure the passages are clear and the gasket
is sealing.