Place the shift in neutral and let it idle for about 2 minutes. The convertor is full at that point. If wont fill in park, and it make drain back when in park and shut off. But, it sounds like it's not working right, and check for leaks. If it was pressure washed, perhaps water got in it.. it is possible. is the fluid clear red, or cloudy?
Good info,I just filled mine and ran it in park,shut off and checked and added more til it read full.I,m gonna have to run in neutral then check again.Hope I didn,t screw it up?It,s a new 904 rebuild with a shift kit and new 2500 stall.
