It shouldn't be doing that ... an electric fan should be kicking in to help cool the water circulating through the radiator.
a bad, or no thermostat might be suspected.
yes
You need to replace your thermostat to get your temp gauge to work. You can go to a salvage yard and get a replacement seat belt.
change your thermostat....
The temp may not go up until the antifreeze leaks way down. Or the temp gauge may not be working right. The leak needs to be fixed, or the engine can overheat and cause permanent damage.
Your temp gauge is a very simple circuit with few things to go wrong. Your temp sensor may be bad, the gauge maybe bad, or the connecting path may be bad. Sometimes if you have taken the gauge pack out, it does not seat right when it is reinstalled. The connection inside the dash is all pressure and prayer.
that is rather unusual i would ask the dealership you brought it from and ask them and then go from there. Some vehicles have two temp sending units, one for the temp gauge and one for the ecm. The one for the gauge generally has one wire going to it, the one for the ecm may have two wires going to it.
I dont know who cares but you should go to a car garauge
You can check the temp. gauge operation by removing the temp. gauge sending unit plug and touching it to any engine ground with ignition on but the Van not running. The gauge will go to hot right away, if it is working. The temp. gauge sending unit is located on the drivers side of the engine at midpoint just below the exhaust manifold. It will have a single wire running to it and be plugged into the sending unit.
A pretty reasonable assumption would be the thermostat is stuck open.
Low on coolant or a sticky thermostat, replace it.
If its only the temp gauge there could be a few factors. I had an '01 Impala 3.4. Once the code came up for the temp sensor. Changed it. Then the fans stayed on after engine shut off. Changed the relays. Then the temp gauge acted erractically. Belive it or not, I changed the thermostat, and blead the system. Then everything worked fine. Even the mpg increased on the highway! I read about this somewhere else. It did work. Many people would tell you to change the BCM. But if its only ONE gauge, that would fix for a while then go back to problem. Remember to bleed the system. These are little stems on top of hard lines.