1995 plymouth neon
 

i own a 95 plymouth neon 2.0 L SOHC it has roughly 140000 miles on it very nice car but i got some issues and not sure were to start. to me the car seems to struggle up hills but when i have the gas petal floored it runs just fine i just fixed the thermostat now i am getting heat but thats besides the point also on day i was driving home from work just this winter and the car started misfiring real bad this brought up a couple EC one was multipule cyclinder misfire battery was disconnected with in the last 50 starts and a fuel inbalance. also at about 1500rpms it sounds like a bunch of needles hitting the block but it only does it between 1500 and 1550 rpms i dont know if anyone will be able to help but it will be greatly useful to me