Could also be radiator is plugged or restricted Is the cooling fan running? Did you bleed all air from the system after replacing the coolant and thermostat? Water pump could also be defective. The water pump should be changed at the same time as the cam belt. This saves on labor later on when the pump fails. Your engine is a Interference engine and as such if the belt breaks, severe engine damage will occur. Belt should be replaced every 90,000 miles or 10 years.
water pump
check the heater core stopped up radiator
Change the thermostat. lol. Simple but the water pump wont work if the thermostat is stuck closed. Good luck. Kyle
Take your thermostat out and put everything back together, run your car without a thermostat... If your car no longer overheats, replace your thermostat.
You have not bleed the air out of the system after you installed the t-stat, causing the heater not to work and the engine to overheat. Use a coolant filler that screws into the radiator and get the air out
Check that the coolant fans are still working, then check out the water pump.
check your fluids it is probably low on antifreeze and if it still does it change your thermostat that should fix the problem
check your radiator. is it clean or does it need to be replaced? a simple cleaning cured my problem.
check the weep hole on the bottum of the power steering pump.. if it is leaking the pump could be the problem..
check the thermostat housing isn't broken where the thermostat pin pushes on the plastic housing fault with polo's
My guess is the head gasket, have same problem. Nightmare
Removing the thermostat can actually make an overheating problem worse. I would check the radiator fan.