trannie pumped 12 qts out, why?
I have a 99 250 4x4 7.3... guessing it has 4r100 trans.... about 3 weeks ago I was 4hrs into a 10 hr trip home from working in Kentucky, when I ran into bumper to bumper traffic on I-24 because of the sinkhole there. For 2 hrs all I could do was let off the brake then step on it again. I finally made it to the detour only for my trans to start slipping. Ifinally found some farmers haying a field and decided that was a good place to break down. I checked my trans fluid and there was nothing on the stick. The farmers towed my truck to their barn and gave me a ride back to the interstate to a hotel, there was nothing around where I was broke down, just got lucky to find good people. Anyhow, after a couple of phone calls that night A friend told me he had heard that if these trans get too hot they'll pump the fluid out. The next morning the same farmer come and picked me up and put 3 gallons of fluid in my truckand it worked fine. Happily I made it home. Now to the present: even though I never understood why my trans pumped that fluid out everything has been working fine since. This weekend I took a 2.5 hr trip to the coast to do the tourist thing, I drove around downtown in circles quite a few times in bumper to bumper traffic until I found a parking spot, still no troubles. Next day I was at the beach in the same kind of traffic, no troubles. Next day I went to the beach , no troubles until I was literally 5 miles from the interstate getting ready to come back home when my trannie started slipping again. I pulled into an autoparts store expecting it to need fluid but all was full and nice pink color. I found a nice shady spot at a church and stayed there until just before dark to let the trans cool off and let rush hour traffic die down. When I got ready to leave the trans shifted fine, fortunately I hit almost all red lights perfectly and made it to within 1/2 mile of the interstate. The last red light caught me , as I pulled off from it the trans was slipping slightly but I made it onto the interstate. Everything was fine at speed so I decided to take the risk and come home. Halfway back I stopped to fuel up and the trans pulled fine but when I made it home and had to drive in red light traffic again it started slipping. I've been doing alot of searching on this site and a few others today and have found a few possible causes, torque convertor, bypass valve, I'm not really sure. My od light is not flashing so I'm assuming I have no codes. Anyone with any ideas thanks in advance.