If the engine is overheating or when you service the cooling system and change the antifreeze.
To change the thermostat on a 2003 Dodge Neon SXT, first remove the drain plug to let the engine coolant drain into the pan. Unhook the coolant reservoir and remove the hose clamp. Spray the two thermostat housing mounting bolts with a solvent and pull out the old thermostat.
The timing belt on a Dodge Neon should be replaced every 100,000 miles.
nthow to change the beltson the dodge neon
Right behind the thermostat housing
not hard at all,you will need a spring compressor
Under the housing where the upper radiator hose hooks to the engine.
A 1995 Dodge Neon uses green antifreeze.
If your thermostat is stuck you should just get another one. They are cheap and available at most auto parts stores.
It is the two wire sensor near the thermostat housing.
It is under the housing that the upper radiator hose hooks to on the engine .
Under the housing where the upper radiator hose hooks to the engine.
you probobly just need to change your spark plugs and wires.