98 z24 deceleration?

I don't really know where to begin. My car seems to start deceleration after I get going. It'll hit about 20mph then start to slow down. I step on the gas and my rpm's go up but then it makes my car jerk forward. It's like it's hitting bubble, or having hiccups. Generally, with the first two times, I pulled over, put it in park, put it in drive, and it went fine. I changed the air filter and put new plugs in. The last time it happened, I was in North Carolina. It was fine on the drive down, but when I was about 12 miles out of the city. It started to accelerate, then not go any where. I stepped on the gas, to get it to go, my rpm's went up, but my car jerked a little, then stalled. I stoped it, then started it and was able to get into a parking lot. I drove it around the lot for a while, but when I went to get back on the highway, it stalled. And everytime I kept starting it to go, it kept stalling, both in forward and reverese. When I got home, it seemed to run kinda ruff. Especially the breaks. I changed the front breaks because there seemed to be some sticky goo in the discs. Someone changed the pad, but no the whole thing. We thought the breaks were "freezing" together. It didn't really help. It still does it once in a while. It's hasn't stalled (knock on wood), but it's been having problems when I accelerate from time to time. I have noticed that it's been rather nice, warm days when it happens, so I don't know if that affects it at all. I guess you could say it kinda hiccups, cause of the way the car jerks. I'm at a loss, and I don't really know where to go from here. I don't know if it's my tranny, or my starter, or what. So, please. Help.

No starter but when the rpm's go up and then it goes does the tires chirp when the rpm's go up a good bit

on the tranny look for a blue square plug and unplug it . this is the Tcc sensor and if it works fine after that then its the senosor. if u have to replace it i think u ahve to either take it to a tranny shop and get it replace( costs alot of money:2cents:) or go with a new tranny which would be cheaper

It was the tiniest hose.... It was a hose connected to the air intake, which was connected to a sensor. The hose was all dry-rotted, no wonder on warmer days my car worked worse.