Help: Heat stopped working

[xopt1js]

Hi all, just had a call from my mother whose heat has stopped working in her car. She said that it is still blowing plenty of air but it's ice cold and it just started happening today.

She told me that there is a funny smell coming from the car so my first thought is heater core, but she said it is not sweet smelling and there are no leaks inside or outside the car.

Any ideas?

Car is a 1999 Plymouth Breeze with 100,000KM.

[randy78]

blend door in the HVAC box could be stuck or broken,
or its cable might not be moving the door
the cable could have come off the heater control unit in the dash



later is most likely

pull the control unit and look to see if the cable is still on the lever and moving the cable



if there is not resistance to the lever or the cable then it probably came off at the door shaft in the box assembly

today i am working on a 99 breeze it has no heat at all from the heater the hoses are warm to and from the core, the lower rad hose was cold, the upper was as hot as the engine, i put a new thermostat in it and the lower got warm but not hot, still no heat inside the car at all,

so we are going to go ahead and pull the core out and replace it

has to be plugged up

doesnt make sense that both hoses are arm,
but many things dont make sense in this life

the old original chrysler 70k miles old thermostat was worn badly however,

very easy replacement, the easiest one i have ever replaced, no gasket, no sealer, no anything, its awesome

2.4L engine that is

replacing the core isnt that bad really, you do have to unbolt the entire dash and remove the shift knob and console, but its just a matter of some screws and bolts

not that bad, straightforward

remove the radio and HVAc controls bezel, and the dash end cap covers, they all pop on, just pry them off carefully, no screws on them

pull the shift knob and console

remove the underdash panels, round clips to pry out

unbolt dash, lift up and away some to get to the core cover

pull the core

now the opposite order



will tackle that tomorrow