Transmission Cooler Line Popped Out

[rdezs]

I just read the original post again. The tranny cooler portion of the radiator is not plugged. It was her upper transmission cooler line that popped out of the radiator.... The transmission fluid enters through the lower fitting and exits through the upper.... Was probably just a bad fitting. I've seen some really cheap aftermarket ones. That particular part really needs to be an AC Delco or genuine GM.
That means there's a cooling system issue. I'm banking on a large air pocket trapped in there.

 

[j91z28d1]

just to add thou my service manual doesn't actually call for a vacuum fill on a ls. other cars require it, while it's not a bad idea to do, it's not a particularly complex cooling system. all is says is basically fill, idle till stat opens. turn off, wait till it cools off. top off reservoir and should be good to go.

 

[donjetman]

Would a burnt up pump make a whining noise?

yes