Moderator: volvite
any radiator with an internal transmission cooler has the "potential" to fail in this mannerproblematique wrote:Ok, wait. I did some more reading. So basically if I don't install a aftermarket cooler (or bypass), a new radiator could potentially still break and leak into the transmission....
oK, I see. Well then I may just do the bypass. My concern is the heat here in Arizona. Won't this cause a problem since I'm removing a cooling component? I will not be doing any towing.eieio wrote: any radiator with an internal transmission cooler has the "potential" to fail in this manner
the key word is "potential", which is not necessarily the same as "likelihood"
several posters here have installed aftermarket radiators that they seem happy with
no way (at this point) to know if the long-term reliability of these aftermarket replacements is better or worse than OEM radiators
the only way to 100% avoid the issue is to by-pass whatever radiator you have (or choose to get as a replacement)
many of us are by-passing, and only running the existing external transmission cooler, which seems to be sufficient for most trucks under most circumstances
the internal cooler may be more valuable for trucks in cold climates as it will allow the trans fluid to attain proper operating temperatures sooner than without itproblematique wrote: oK, I see. Well then I may just do the bypass. My concern is the heat here in Arizona. Won't this cause a problem since I'm removing a cooling component? I will not be doing any towing.
I can speak to this. Regarding the cold temperatures, I have noticed that the first few shifts are a little rougher than before I did the bypass, when the transmission is cold. After about 1-2 minutes, the shifts resume the normal butter smooth shifts I am used to. I don't think this is a big deal, and my truck has 230000kms on it, 130000kms have been bypassed.eieio wrote:the internal cooler may be more valuable for trucks in cold climates as it will allow the trans fluid to attain proper operating temperatures sooner than without it
most do fine with the by-pass and no additional cooler, especially if not towing
you can also add a trans temp guage to be able to verify your trans temp, and modify accordingly if needed