Hi I have a 4L60E of a 94 Chevy with no drive at all ranges.
Before this happened, there seem to be some problem with downshifting, and I had to manually shift it to lower gears in order to get a good acceleration from a stop. This had been going on for about a month or two. Then one day, while accelerating through about 20mph, I heard a little clicking sound, very light but clear, and suddenly there was no drive at any range.
Now, I checked the fluid level which seem to be normal. Oil was not burned, but I changed the fluid and filter anyway. The pan was actually quite clean with no debries.
The next thing I checked is the line pressure, which, not surprisingly, is zero.
I have worked on trannies before, but I'd like to get some more opinions from the experts here before I start to take out the tranny.
Thanks in advance,
Jizhong