sort of depends on the engine... on my 4.3L vorteck v6: find the radiator hose that is connected to the top of the radiator (it is about 2 inches in diameter). follow the hose back to where it connects with the engine. it will be fit on a plastic part that is bolted to the top of the engine, next to the throttle body. remove the intake on the engine so that you can access the bolts on the plastic fitting, and unscrew them. underneath is the thermostat.
Sounds like you need to replace the thermostat.
replace the coolant sensor, the one next to the thermostat housing.
how do u replace a flywheel in a Chevy zr2 s10 2003 v6
1991 Chevy s10 how to replace outside window weather strip
You replace the brakes on an ABS S10 the same way you replace brakes on a non ABS S10.
how do you replace dome light in s10 chey blazer?
Remove 2 mounting bolts and replace
Check your heater core and thermostat. The thermostat may be stuck open. Does the S10 run hot or cold?
Start with replacing the thermostat.
It goes around the thermostat if you are talking about the Chevy S10 4.3L engine.
It should have a 195 degree thermostat.
How do you replace the front drivers seat on a 1996 Chevy S10 pick up truck