Cummins66

A while back, one of my transmission fluid cooler lines came loose, dumped all my fluid out on the ground. Fortunately I had just started it and was backing up when we noticed it. But it got me thinking, what if that happened while I was driving, or worse yet while someone else was driving it! How would I know that I was loosing fluid? I have the trans temp guage but that is in the fluid pan. So if I run out of fluid, I wont even notice the transmission heating up. I was wondering does anyone make a transmission fluid pressure guage that could be put in the line? Then I would know if I lost pressure.

Crimedog

I also have thought about this. It down right scares the crap out of me to think that I could dump ATF all over the road. You could just use a regular oil pressure gauge, up to 300 psi (that's what my dealer says). I have thought more than once about doing this!