Oldsmobile/Buick Repair: 1996 Olds Bravada - Heater Core Gurgle Sound, temperature thermostat, olds bravada

Question
I changed the thermostat and still weak heat - I even put in a high temperature thermostat still weak heat -


-------------------------
Followup To
Question -
Hey I have a 1996 Olds Bravada - the heating system seems to be weak and when I accelerate there is a gurgle noise that sounds like it is coming from the area where the heater core is - there is no leaking or antifreeze anywhere - just weak heater and gurgle noises that occurs typical at acceleration
Answer -
hi john .gurgleing noise no problem just antifreeze going through core.t stat causeing weak heat.good luck please raTE my help ty billymac

Answer
hi john.ok now we have to find out if the hoses are both 185 degrees comeing out of the heater core if one is colder then the other core is stopped up if both are hot at norm operateing temp then blend door is stuck under dash not shutting cold air off good luck billymac