Replacing radiator

[Mxylplyx]

Does anyone know if any action needs to be taken in regards to the transmission lines when changing out a radiator, particularly with all the air that would be introduced into the system? I know that I will need to burp all the air out of the cooling system after such a change, but all I can think to do with the transmission lines is to hook them up, start the engine, and top off the transmission flood after I run it up to temp. Are transmissions closed systems, or can they purge themselves of excess air?

Thanks

 

[Pacfanweb]

The trans will take care of that itself. Don't sweat it. You might want to block off the lines while they're loose to keep tranny fluid from dripping all over the place, though. Check the fluid afterwards, but there usually isn't a significant loss of fluid by changing the radiator.

 

[Demon-Xanth]

I've never had a problem with it. The transmission isn't a pressurized system like the radiator is. It'll just shoot the air into the pan which already has air it. Just make sure you check the level after the first drive. Think of it like changing your oil filter without replacing the oil in regards to air and lost volume.

 

[cprince]

I changed a radiator in my car with the transmission lines last week. I just unplugged the lines, covered pieces of plastic over them, and tied them up to other engine parts so that no more fluid could leaked out. I just plugged them back into the new radiator. I looked at the service manual of my car and the repair guide at autozone.com, and they didn't say anything about the removing air from the transmission; so I figured that I don't need to do it. I just checked the transmission fluid level when I was done, like you said.