Change thrermostat - 2003 Nissan Sentra GXE

Check the thermostat is operating correctly, the cooling fan is turning etc

It’s your gas gauge sensor. Might be in gas tank replace that. Should stop the problem.

it could be a vacuum leak or the egr valve or clogged airfilter

Check your overflow bottle for any signs of exhaust fumes, the coolant for any signs of oil contamination and the oil for any signs of an emulsion forming. Overheating is often a sign of a blown headgasket with a leak between one (or more) of the cylinders and the coolant passage in the head and block. If ignored, when the oil looses too much of its lubricating value due to water mixed with it, the engine can seize up and then it gets very expensive.
If you want to embark on doing your own maintenance, I highly recommend you invest $20 US in a Haynes manual for your car which will contain all of the info you need on things you can do at home.
Elantra Manual

Can you run a drill bit (smaller than the bolt into the middle of the broken bolt? If so get a easy out from local auto parts store to pull broken bolt. Don't forget to pickup a new bolt.

Hello, this is the oil capacity of your vehicle.

I hope this info is helpfull

• with filter change

4.1 liters
4.3 quarts

• without filter change

3.75 liters
4.0 quarts

• 3.4L (LA1)

• with filter change

4.1 liters
4.3 quarts

• without filter change

3.75 liters
4.0 quarts

• 3.4L (LA1)

• with filter change

4.1 liters
4.3 quarts

• without filter change

3.75 liters
4.0 quarts

• 3.4L (LA1)

• with filter change

4.1 liters
4.3 quarts

• without filter change

3.75 liters
4.0 quarts

• 3.4L (LA1)

• with filter change

4.1 liters
4.3 quarts

• without filter change

3.75 liters
4.0 quarts

• with filter change

4.1 liters
4.3 quarts

• without filter change

3.75 liters
4.0 quarts
with filter 4.3 quarts

without oil filter 4 quarts

Anti freeze doesn't just diasppear, put a pressure tester on it and start looking, hoses , rad seams , heater core, heater core, frost plugs,intake and head gaskets etc

hi the way to find where your thermostat is to follow the top hose from the radiator to the engine where it connects to the engine that is where the thermostat housing is, the clicking sound is possibly the flasher box continuing to click, i it is working as they say don't fix it, but if it bothers you you should get it replaced but also the clicking sound might just be the heater matrix inside the car cooling down, this is the thing that you get heat from in the car its like a little radiator under the dash..hope this helps

you need to try replacing the thermostat first to make sure the engine water gets up to 195 degrees.

Ok, a couple of tries. 1, make sure the electric fan runs. 2, when engine is running at normal temperature, feel across the whole radiator, if you feel cool or cold spots, clogged radiator and replace it. 3, if it overheats quickly, possible headgasket failure, have a shop do a block test to confirm. Hope it is not #3