Well First is the blower motor working if not probably good reason why very little heat is coming out but some would come out. Also you might want to check the thermostat if the thermostat is stuck open you would be getting some heat if stuck closed heat would not be the best.
If blower motor is bad short term fix is to just get a hammer and give it a whack on the bower motor b/c there is a motor ..... and brushes need to connect to the motor to complete the circut if the brushes get clogged then the blower motor will not work properly.
The thermostat should be on the (looking at the car from the front) on the right hand side coming from the rad.(raditor) Into the engine block. should look like a bubble at the end of the hose.
Ps. I really hopes this helps its hard to diag. problems with out actually looking at the car
Check the heating elements in the water heater. These may be bad and need replaced.
The heater cor was replaced but it is still not getting warm
Detach the screw that attaches the heater duct on a Chevy Cavalier and remove the heater core. Once this is done you can replace the faulty heater core with a functional one.
you need a new rheostat !
Sounds like heater core is leaking and needs to be replaced You probably have a leak in the heater coil of the air conditioning system. You can either get the coolant flow to the heater coil shut off (cheapest) and get along without heat in the car, get the heater coil repaired (iffy), or get it replaced (maybe get a used part from an auto salvage yard.
Remove the wiring harness from the back of your 2005 Chevy Cavalier heater blower motor. Remove the heater blower motor retaining bolts. Remove the heater blower fan.
There are heater-resistance wires in the glass of the back windshield.
The water from your 1989 Chevrolet Cavalier cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
Drain the water from your 1994 Chevrolet Cavalier cooling system. Remove the water supply hoses from the heater core. Remove the heater core retaining bolts. Reverse the process to install your new heater core.
im having the same problem with my 1994 I've replaced the heater core,thermostat,radiator,i checked the coolant, and it's not over heating or nothing and still no heat lol
If your heater core wasn't leaking at the time your radiator was replaced , then ( no ) That would be two separate jobs
Check into the temperature control valve--this is different than the thermostat.