Antifreeze in transmission 2010 Duramax??
What’s going on here. How does this happen? And has it ruined my transmission?
Forum Discussion
ivbinconned, don't give up just yet. The issue of a failure of a transmission cooler in the radiator is a common problem for GM. The real issue how long did it go before you discovered the problem. In many cases you can simply replace the radiator, have the transmission flushed and the fluid replaced and you may be good to go. This is something you may want to consider before you just give up and purchase a transmission rebuild. Ultimately if the transmission has been toasted you can have a GM dealer replace the trans with a factory rebuild and you will get at 3 year 100k warranty to boot. Do your homework before you give up. You have lots of options!
