rob249
I'm Awesome
Truck is a 94' Yukon. A few years ago, I was towing on the freeway in somewhat of a convoy with my buddies, on our way to the Colorado river by Yuma. I noticed a bunch of fluid on my back window, then got a check engine light. Pulled over and smelled the trans fluid, and knew right away what happened. I checked the code, which verified that I overheated the transmission. I dont remember what temp sends the code, but I do remember it was some crazy high temp. I assumed I fried it, but was able to get it home after letting it cool.
I have since bought a different truck for towing, and have just been using the yukon as a DD. I added a temp gauge to the test port, had the fluid exhanged at a shop, and added an aux cooler. At the time, I assumed the trans was done, so I didnt change the filter when I had the shop do the fluid exchange.
Now, 50,000 miles after that, its still going strong. The temp runs a little high, about 220F at speed, and the fluid stays black all the time. It slips a little, only when cold, on the 3-4 shift.
Im putting a new motor in it next week, so Id like to do a little work to the transmission at the same time. When the shop did the fluid exchange, they had an interesting setup id like to build. It had two large plastic "beakers", or graduated cylinders. They hooked each to a trans cooler line, and filled one up with fresh fluid, then just used the transmission to pump the old fluid out and suck the new fluid in. I cant seem to find large plastic containers with petcocks to make such a thing with. All the fluid exchange machines I see online are very expensive, and use an electric pump.
Anyone made one of these? Im considering using plastic fuel jugs like these; https://www.summitracing.com/parts/...LKVGvhpah-7y7g9UTAl7D_wkv_opckFRoCF3cQAvD_BwE
Ill be replacing the trans filter, and adding a remote Derale filter before the before the aux cooler and radiator cooler.
I have since bought a different truck for towing, and have just been using the yukon as a DD. I added a temp gauge to the test port, had the fluid exhanged at a shop, and added an aux cooler. At the time, I assumed the trans was done, so I didnt change the filter when I had the shop do the fluid exchange.
Now, 50,000 miles after that, its still going strong. The temp runs a little high, about 220F at speed, and the fluid stays black all the time. It slips a little, only when cold, on the 3-4 shift.
Im putting a new motor in it next week, so Id like to do a little work to the transmission at the same time. When the shop did the fluid exchange, they had an interesting setup id like to build. It had two large plastic "beakers", or graduated cylinders. They hooked each to a trans cooler line, and filled one up with fresh fluid, then just used the transmission to pump the old fluid out and suck the new fluid in. I cant seem to find large plastic containers with petcocks to make such a thing with. All the fluid exchange machines I see online are very expensive, and use an electric pump.
Anyone made one of these? Im considering using plastic fuel jugs like these; https://www.summitracing.com/parts/...LKVGvhpah-7y7g9UTAl7D_wkv_opckFRoCF3cQAvD_BwE
Ill be replacing the trans filter, and adding a remote Derale filter before the before the aux cooler and radiator cooler.
