Trans cooler installation.
Hi all, I wanted to be proactive to see if I could keep my automatic tranny alive for the long haul. I have a 27 ft Chateau sport with the 4R100 trans. I am the second owner and decided to bite the...
Forum Discussion
wolfe10 wrote:
I agree on covering the secondary trans cooler in winter.
Also, best routing is from transmission through secondary cooler to factory cooler and back to the transmission. That can keep fluid from being too cold.
As a former Ford transmission cooling engineer, I'll tell you that you have that backwards. The best routing is from the front of the trans to the radiator cooler, then to ONE aux cooler, then back to the rear of the trans. The radiator will NEVER warm the ATF. It is a cooler, not a heater. It is very effective as a cooler, but absolutely useless as a heater.
