Afternoon,

I have a Ford Ranger 2015 3.2 vehicle. It seems that my slave cylinder is faulty, but I cannot see it. Can anybody confirm where it is located, I think I will have to take out the gearbox but obviously I dont want to do that just to see it is also not located there.

Tx in advance for assistance.

Follow the clutch master cyl. line down to the transmission bellhousing, if it goes through, then the slave is inside, and the trans has to be dropped to replaced. The slave can be bled though, might try that first, make sure the master reservoir is full first.

Tx will follow it and check.

Did try bleeding it, no success.

More than likely, it's in the bell housing and will look something like this:

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Sgtsandman's Work in Progress
2011 Ranger XLT, 4X4, 4 door Super Cab. 4.0L, 5 Speed M50D-R1HD, 3.73:1, 8.8" open differential, Jason Pace cap
2019 Ford Ranger STX FX4, Super Crew, 2.3L Ecoboost, 10 speed automatic, 3.73:1 with rear locker, Leer 100XR cap

The way I understand it, when the clutch needs to be bleed, you have to bench bleed it because of a poor design in line routing.
This is why when I replaced the clutch on my '95, I opted to not even replace the slave cylinder. I wouldn't usually replace the slave cylinder unless it were leaking. But another fun Ford trick was to make the throw out bearing integral with the slave cylinder.

So for this design, swing and a miss Ford.

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Current Rangers:
2000 XLT 3.0 extended cab / 1995 XLT 3.0
Former Rangers:
1993 XLT 3.0 / 1991 XLT 3.0 / 1985 XL 2.3
1974 Ford Courier if that counts

You can bleed the whole system in about 2 mins with it all on the truck if you take the master off the clutch pedal and flip it upside down.

Crack bleeder, push in by hand, close bleeder (you need a friend to help) fill reservoir, repeat 3 times.

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2001.5 2.3 213xxx and counting
M501-HD L154 Manual
Don't bother looking for 1st gear synchros, I bought the last one