if the blower motor works most likely heater core is bad. need more info
Sticking thermostat could cause this. If the thermostat is stuck open, it never gives the engine a chance to fully heat the coolant. Follow the top radiator hose to the engine, remove the hose and remove what it hooks to and there's your thermostat.
There is no such thing as a 1997 dodge saturn! Try again.
Thermostat stuck open, clogged heater core, heater flow valve not functioning, or low of coolant.
Follow the top radiator hose to the engine, what that mounts to is the thermostat housing, remove this and there is your thermostat. * ** *** **** ***** Actually, on my 1997 SL2, the thermostat is on the bottom radiator hose. I would check the "Saturn Thermostat Pictures" link below, which also has installation and removal instructions.
Check the thermostat, also there could be a heater core issue...
It is located at the lower radiator hose where it connects with the block.
it could be a couple of things you could have a bad thermostat or a bad heater core
Below the water pump on the front left side of the car.
There are several common heater problems for a 1997 f150. A stopped up or leaking heater core, bad thermostat or clogged up blower fan housing all can cause heat problems.
Check your heater core and thermostat. The thermostat may be stuck open. Does the S10 run hot or cold?
generally if an engine overheats, but then does not overheat when heater is turned on, is a good indication that the engine thermostat is stuck and needs replacing
the heater core could be pluged or the heater control valve is stuck closed