Adding a transmission cooler
Adding a transmission cooler..does it add towing capacity?
Forum Discussion
Hi,
If the transmission was overheating on a long grade, or while driving through the desert, then the cooler will help both cool the transmission, and as a side effect also prevent so much heat from the transmission going into the radiator tank heat exchanger.
I put a digital transmission gauge on my 1985 GM 3500 based 27' motohome. ON a 95F day, the transmission would run 235F on level ground, on highway 15 from LA to Las Vegas. This also caused the fan clutch to kick in several times a hour, to help cool the radiator.
After installing a really large trans cooler, and removing the factory one, the fluid temps still where in the 200's running level, and 235 when going up a mountain, still to hot! So I put the factory cooler back on, despite it's small size, being 3/8" tubing 4 pass and about 12" wide and 8" tall.
The cooler that I installed was 19" wide and 11" tall, 8 pass of 1/2" copper line. I installed this so that the fluid left the transmission, then into the larger cooler then into the radiator lower tank heat exchanger, then into the factory cooler, and back to the transmission.
Fred.
If the transmission was overheating on a long grade, or while driving through the desert, then the cooler will help both cool the transmission, and as a side effect also prevent so much heat from the transmission going into the radiator tank heat exchanger.
I put a digital transmission gauge on my 1985 GM 3500 based 27' motohome. ON a 95F day, the transmission would run 235F on level ground, on highway 15 from LA to Las Vegas. This also caused the fan clutch to kick in several times a hour, to help cool the radiator.
After installing a really large trans cooler, and removing the factory one, the fluid temps still where in the 200's running level, and 235 when going up a mountain, still to hot! So I put the factory cooler back on, despite it's small size, being 3/8" tubing 4 pass and about 12" wide and 8" tall.
The cooler that I installed was 19" wide and 11" tall, 8 pass of 1/2" copper line. I installed this so that the fluid left the transmission, then into the larger cooler then into the radiator lower tank heat exchanger, then into the factory cooler, and back to the transmission.
Fred.
