it looks like my crooked english is misleading you again. Sorry.
I meant that the transmission fluid was removed from the standard radiator and sent to a separate radiator. The guys just found the first counter radiator , approximately suitable for the parameters, and installed it in the transmission cooling system.
Thus, according to the owner of the car, the transmission fluid received an individual radiator, began to cool much more efficiently, and the driving shocks disappeared.

 

My transmission seems to slip occasionally or hit hard changing gears I put the code reader on it yesterday and it threw no codes. My HHR is a 2007.

Any thoughts?

 

geg, a separate fluid cooler can be installed to eliminate the in radiator transmission cooler, I’ve run those on my drag racing cars years ago, but on a car driven on the street in traffic the transmission fluid could overheat, unless you mounted a fan to blow air through it



This is a GM cooler in a newer Silverado pickup truck



A kit like this could be mounted in front of the rad and the cooling fan should pull enough air through to cool it in traffic