My hyundai accent model 2015 keep on having problem of stuck up clutch pedal even i changed already the master cylinder assembly. Please advise. Thanks in advance.

 

Not clear on what you are telling us.
Are you saying when you go to step on the clutch it is hard to push down?
Does it go down easily once you get it started going down?
Does it come back up easily?
Were you able to check the fluid line that goes from the clutch master cylinder on down to the trans?