Two problems related to radiator have been reported for the 2000 Plymouth Neon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Plymouth Neon based on all problems reported for the 2000 Neon.
My 2000 Plymouth Neon lx lost power at an intersection, I had it towed, found out that a hose (that I believe either connected the radiator and the transmission or was for the radiator only, not sure, wasn't explained very well to me) had fallen out for no apparent reason, causing all of the fluid to leak out. When taken to a dealership, I had to have the radiator replaced, luckily my transmission was ok. About one minute before it happened, I noticed the car was shifting hard, and seemed like it was trying to shift while I was stopped at the intersection. By the time the light turned, most of whatever fluid was already gone.
Connection between radiator and transmission failed on a busy icy road in rush hour traffic as the car lost power my wife nursed it to a gas station the damage was already done we replaced the radiator only to fine that the transmission needs to be rebuilt.