How do you test slave cylinder on 1994 wrangler?

it is usually the slave. At least for the 94, I believe it was moved outside the bell housing. For prior years it was INSIDE the bell housing so the whole Xfer case/trans had to be pulled to get at...

step on the clutch and hold it to the floor clutch should stay disengaged for as long as you hold it down

There are 2 kinds inside and outside the transmission, I think you are talking about the 4 cylinder with the 5 speed. You will need to separate the engine and transmission, ( hyd lines to the...

how to replace the slave cylinder on a 1993 jeep wrangler

yes it has one