I have an overheating problem.what could be wrong

Overheating can be casued by a few things.

1)Thermostat
2)Water pump
3)Dirty coolant clogging the pump

A thermostat is the cheapest part to replace, a thermostat opens and closes allowing coolant into the motor as needed to keep it cool, if it gets stuck closed then it doesn't allow any coolant into the motor thus overheating.

A water pump is what pumps your coolant around the system, and if this goes no coolant moves thus overheating. Usually when these go bad they leak coolant and are also noisy when bad.

Lastly could be bad or dirty coolant, a coolant flush can take care of this.

If I were you I would start with the thermostat followed by the coolant flush, both of these can be done in your driveway.

Hope this helps

I am gonna say the thermostat.flush out the radiator too.