The temperature guage, however, since you have a Buick, you more than likely dont have one. The issue with this is once the Temp warning light turns on, it might just be to late. You can buy a program like HP Tuners, install it into your laptop, and get the connector cable, and you can monitor your car in real time. This will tell you your temp. Otherwise you can go to your dealer, which would actually be cheaper, and they can use their computer to do the same thing.
You should not drive a car that is running hot,because you can lock up the engine.
yes
change the thermostate
there is something wrong with your car. It's not supposed to run and its not supposed to be hot at the same time. Maybe its running for a fashion contest
There are many reasons as to why a Sunfire may be running hot. Most likely the car is running low on coolant, or other fluids.
Your Trailblazer may be running hot because your fan is no longer working. It may also be running hot because your don't have coolant in your car.
YES.
That depends on what the car is supposed to run at.
This is the result of of an internal combustion engine.
No, that will have no effect on the battery.
This is the result of of an internal combustion engine.
Thermostat and radiator