general problems of the 2004 Chevrolet Cavalier

2004 Cavalier, 2. 2l dohc, 5-speed manual transmission. While driving at 60 mph vehicle felt as if cruise control was engaged. Rpms would not fall off as fast as usual when foot taken off gas, and when I depressed the clutch (which was just replaced last week due to another known issue that chevy refuses to recall) rpms went above 4,000. Tapped gas pedal thinking maybe it was stuck and it only revved higher and did not come down on its own. Rpms continued to climb as I came to a stop, around 6,000 by the time I pulled over. Shut the car off and immediately back on, no problems for the rest of the trip home (another 8 miles). I cannot risk my car revving at 6,000 rpms in stop and go traffic which I'm in every weekday and I can't shut it off and turn it back on to fix the problem, so I have to find out what causes it and fix it ASAP. Thanks for another spendy repair, chevy.

All of the trouble lights come on including the service light with a wrench. Then, all of the gauges drop to nothing; you don't know how fast you're traveling, what your fuel capacity is, the temperature gauge drops to nothing along with the tachometer dropping to nothing. In the odometer and "error" message replaces the odometer reading. The gauges will intermittently go off and on or all of them will drop of with no reading. The other evening, I was coming home on a winding back country road and all of my lights went out. I have to limit my driving to daytime driving and only use the running lights as it appears to only aggravate the problem when I use my headlights. Today, everything above happened along with some news things. The vehicle was shut off, the key was removed from the ignition and the running lights remained on as did the warning alarm as though the key were left in the ignition. I left the car only after I pulled the left and right fuse from the panel. When I returned to the car, I inserted the fuses and started the vehicle but was unable to shift the car into gear as the car would not let me depress the button on the shifter to do so. I have to now shut the car off and pull the ignition fuse and then reinsert it to get the car in gear. What the heck?.

So when my gas gauges get down below the half line the check gauges light comes up and I know for sure that my car isn't yet empty. What do I do?.