Quote Originally Posted by avguy View Post
Presumably this is a leak such that the wall of the transmission cooler and the wall of the radiator opened up to each other, but didn't open up to the outside and leak externally (where it would have been seen). One interesting question is how did the stealership know there is an "internal leak", without remvoing this radiator and opening it up?
One possibility is that they're completely wrong on this diagnosis, and there's nothing wrong with the radiator/transmission cooler. But if they're right, then it seems like the only way they would "know" this information is that they have either seen it before, or have been made aware of it from Mother Chevrolet.
If their diagnosis is correct, is this going to become another Aveo timing belt fiasco? Unless this vehicle was hit, nothing should be able to affect this internal section of the radiator, which raises questions about a possible systemic defect. This radiator appears to be a new part in 2009, and common through 2011. Do all of these vehicles have radiator time bombs ticking away? Certainly hope this is not the case, but if I had one of these later Aveos, I would be digging around for more information about this.

what this guy said should help with the story your dealer gave you. honestly a radiator should not cost that much to me anyways. ive only paid 300 parts and labor on my honda.