I recently took a 200 mile trip in my 2005 Cavalier. A week prior to this trip I had the coolant replaced. About 20 miles from home, the temperature gauge dropped from 195 to about 110. The heater and defroster ran right, there was no steam no leaks from radiator or heater core. After stopping to check, I restarted my car and the temp gauge went back to 195. It has been a couple of days and everything is running normal. I need to get it fixed if something is wrong because it only has 70,000 miles, and cannot afford to buy a new car now.
Wheel bearing
blown engine, out of gas janitorial duties.
Replace the fuel filter, that is a good place to start.
I'd check the coolant level first, then the thermostat.
I would like to know this currently, but mine sets around 90 degrees Celsius on average (while driving for awhile) I'm not sure if that's high, but it's half way on the temperature gauge.
Wheel bearings and allignment. Can be tires as well and sometimes even a bad motor mount.
its probably a computer issue or an electrical issue some where in the car i had the same problem with my car and it was computer
While driving my cavalier will shift into high gear for at least a couple of minutes. Shifting gears,giving it gas does not help. Any suggestions?
If all the connections and wiring look good, it is probably the fuel gauge sending unit in the fuel tank.
it may be the o2 scensor
If it always goes back to normal later, I'd suspect fuel filter first. But other problems are possible.
The sending unit in the gas tank is bad.