Car is dying when driving at slow speeds. After slowing down while driving through a small town the vehicle suddenly turned off. RPMs at 0, engine dead but electric systems still working. I was able to coast over to the shoulder and wait. Restarted and a loud knocking noise cam from the engine. Turned the vehicle off and then started it again. Ran fine and didn't stall again until about an hour later the check engine light came on. I took it to the nearest dealership and was told that it was a fuel sensor problem but that they didn't have the part. Since I was traveling I decided to drive it home knowing that it could stall at anytime. It hasn't stalled since but there have been several times that the RPM's have been low and the engine seems to be struggling to keep it on. Taking to to get checked out, AGAIN!