I replaced my clutch, master, and salve cylinder 2 years ago with all new parts. Haven't had issues with it till now. Basically I am losing my clutch pressure. When I press the clutch pedal down and hold it there for about 3sec, it starts losing pressure.

This happens especially when am backing up or in traffic since I have to hold the pedal down and balance the clutch. This of course is causing my car to stall all the time since once it loses pressure, the clutch fully engages without me letting go the pedal and i can’t get it out of gear since the clutch is already engaged.

So I have to let it stall and then pull the clutch pedal up with my foot and then pump it to get pressure so that I can at least shift into or out of gear. It drives fine when there is no traffic since am not holding down the clutch long enough for it to lose pressure.

I do not have any leaks and my master cylinder is full. I am just confused on what the problem could be. I am Suspecting master cylinder since i bought those cheap ones from AutoZone but then again i don’t know. Please help.

if you have no leaks then it could be the master the nissan masters last for a long time but the aftermarket ones aahh..

prolly the slave.

I replaced both MC and slave because i didnt know which one was broken and they were 50 bucks apiece new.

Did it fix the problem?

There is a line by the tranny, about 12 inches long, has banjo bolts on either end. Its on top Ill take a pic in the morning. Mine was leaking and I lost all peddle feel. I replaced it and good as new