Hi everyone,

Would you please teach me how to replace the load breather hose AJ84880?
It is difficult to do because it is narrow around the Throttle body.
I would appreciate it very much if you could tell me the method.

Regards,
John

 

[QUOTE=John Chan;1904133]It is difficult to do because it is narrow around the Throttle body. I would appreciate it very much if you could tell me the method.[QUOTE]

I believe this is the long thin breather hose that has a "T" which connects to the intake elbow under the throttle body end extends to the front of the left valve cover ("part load breather"). You will have to remove the throttle body for the job.

 

The part number you reference is for the part load breather. It runs from the left side cam cover, under the intake manifold where it junctions to the throttle body and then continues down to the evap system connection.
The best method is to remove the intake manifold and disconnect the connection at the throttle body. You will need the special tool for disconnecting the fittings. It looks like a U shaped piece of plastic. If you don't have one you can use needle nose pliers by inserting them and spreading them open to apply pressure to the plastic strips. Spreading them away from the fitting releases it.
It is easier to remove the connection at the throttle body and then separate the other connection on the bench. The connection at the evap system is a hose and clamp.

 

I took the throttle body off, disconnected the fitting at the cam cover, intake elbow, and the firewall, and pulled it out. You may be able to tie the new one to the old one and pull it through. My old one was in pieces, so I could not do it that way. Instead, I tucked the new line in between the cam cover and the intercooler (XJR). Invisible and worked like a charm, and I didn’t have to take the supercharger off. With some ingenuity you won’t have to take the intake off.

I don’t think you can get to the fittings where the breather tube is attached around the intake elbow without pulling the throttle body off, but you’ll have to make that determination. The throttle body is a little tricky to remove, but not terrible.