Automatic Transmission Fluid Leaking

[wdbowers]

My Skoolie (Vanderbus) is a 90 GMC with a Ward body. We where on our maiden voyage and all went fine. Our MPG seems to be really good. But when we where returning home my wife who was driving the dingy radioed that we had developed a sudden smoke cloud. Upon investigating I found tranny fluid on the exhaust and under carriage works. I got it on home and checked every thing finding no leaks. Then I discovered being over full on fluid. Do you (or anyone) think I hurt my rig in any way? There is nothing actively leaking. Those Allison Transmissions are suppose to be tough arent they? thanks... my email is wdbowers@yahoo.com

[dlor1]

What type of allison is it? I just swaped my AT 545. Mine overheated and spewed at fluid on my turbo and smoked the inside the hell out. Stinky stuff. It was obvious though that mine overheated and smelt burnt.

[wdbowers]

I cant say which Allison it is but I do not think it overheated. I never got any smoke in the coach. It was more like a short burst went out and onto the exhaust, drive train and floorboards. I have been told to check my radiator for fluids in the water. I did not drive but about 3 more miles after the incident.

Will

[Elliot Naess]

Check the tranny fluid for signs of water also. Radiator water and tranny fluid are often just a thin copper tube wall apart, and fluids can travel thru a crack in either direction, depending on prevailing pressures and whatnot.