1998 grand prix over heating
the top radiator hose gets hot but the bottom one does not. no heat in the car and i have replaced
the thermostat. coolant level is good.
assuming that you are not getting heat from the vent, my guess is that something is blocking coolant flow to or from the heater core (supplies heat for interior comfort)
when you replaced the thermostat did you burp the system?
Check your heater core and the water pump. Also, it is possible that there is an air bubble in the system. Pressurize it to clear the air and improve water flow.
how do you get all the air out or bulp it like you say
I have the same exact problem. but I replaced the therostat. and the temp still goes up when the car idles. then it goes down when I take off..
Looking for a Used Grand Prix in your area?
CarGurus has 3,749 nationwide Grand Prix listings starting at $879.
Search Pontiac Grand Prix Questions
Pontiac Grand Prix Experts