Pontiac Repair: 96 grand am heat, degree thermostat, head gaskets

Question
hey todd i have a 96 grand am i have replaced intake gaskets,head gaskets hade heads checked for cracks, thermostat,rad cap,water pump and when i run the car it warms up and i can get heat blowning out the vents very hot i drive the car and when i stop the goes away and then if i get the rpms up to about 2,000 i get heat again and at idle it goes away i have bled the system sevel timesand used a air bleed remover tool and still get the same thing im ready to burn the car

Answer
Hey Seth:

It's one of a few things. either the heater core is partially plugged/restricted or it has an air pocket in it. I know you said you bled the air out. but it is still possible. Also it's possible that you stil have an issue with a head gasket it it' leaking combustion into the cooling system the heater core is wher the air goes. Doe the temp gauge act goofy? If it's all over the place that would be a good indicatiion of that as well. Did you actually replace the thermostat? If it the correct temp for the car usually they are around 195 degree thermostat. Just a few suggestions to try. good luck and happy holidays :}