(For a V6) just follow the top hose comming out of the top of the radiator, this hose will go into the manifold, if you look at it you will see 2 bolts....the thermostat is located under those 2 bolts....
It should have a 195 degree thermostat.
Probably a 195 (F) degree thermostat. That would be what the system is designed for.
You need only to drain off a couple quarts of coolant to change the thermostat.
After the catalytic converter.
If it has a 4.3L engine the temp sensor is located next to the thermostat housing.
look under the battery tray
how do u replace a flywheel in a Chevy zr2 s10 2003 v6
Just pull up on it and wiggle at the same time, it will come off.
The coolant temp sensor on a 2003 Chevy S10 V6 is located on the front of the intake manifold. To replace simply unscrew the old sensor and screw on the new one.
On the 4.3L it is located next to the thermostat housing. The electrical plug to it has two wires.
It would be found in the relay center located under the hood.
Check your heater core and thermostat. The thermostat may be stuck open. Does the S10 run hot or cold?