Have the water pump checked. My 99 had an overheating problem; guage would go up and sometimes engine would stall. It turned out to be the water pump.
There is no sure way to know until you take the thermostat out and check it. After removing the thermostat, you can test it by submerging it slowly, with a tool in boiling water. You can then see the thermostat open up. If it does, this is not your overheating cause. If it does not, you need to purchase a new one. Install the new one and you will find out if that was the problem.
are the cooling fans coming on
I would start with checking your thermostat and thermostat housing. See if its regulating. If it is not replace the thermostat.
Could be the water pump is not working properly.
It MAY help with the overheating problem....but you really need to find out why it's overheating. Blown head gasket, stuck thermostat, bad water pump, fan not coming on, etc.
Check the water pump. If the thermostat is working properly then the next common problem would be a bad water pump.
Check the thermostat first. I had an intermittent overheating problem on my 02 for almost a year, changed the thermostat and it never happened again. If that doesn't work, secondly I would check the water pump.
I had a VW Jetta that had a problem with overheating. It ended up being the thermostat had gone bad so the fan never "kicked on." A car can over heat if there isnt enough antifreeze in the radiator or a bad thermostat or if your fan isnt working properly or is bad
Your radiator might have a small pinhole in it, causing it to not build up pressure.
is it leaking anywhere? Can you be more specific other than overheating. I had the same problem 2 weeks ago. I fixed it.
Take your thermostat out and put everything back together, run your car without a thermostat... If your car no longer overheats, replace your thermostat.
my jetta keeps overheating so i replaced the thermostat hoping that was the problem but know there telling me it might be the water pump check it out maybe its that