Overheating or engine does not get warm enough. Replace any suspect thermostat. You can test one, but as you have to remove it to do so, just replace it.
removing grill for a 2000 astrovan
most likely the thermostat, but these vans also have a history of blowing head gaskets...... It would help if you described symptoms
do i need to change the manifold when replacing thermostat
Where the upper radiator hose connects to the engine you will find the thermostat.
The thermostat is located on the engine of a 6.0 vortex 2000 Chevrolet Silverado 2500. The thermostat can be found by following the upper radiator hose directly to the thermostat.
Replace the thermostat.
on the water pump
Show me the picture of it
Down the dipstick tube. Suggest using a funnel. Most convenience stores that sell gas and oil can provide you with a paper cup.
Follow the upper radiator hose back to the engine, it is connected to the thermostat housing on the engine. The thermostat is located under the thermostat housing.
just follow the upper radiator hose to engine, and you will find it.
follow the upper radiator hose, that should lead you to it.