[FordMan2005]

I have a 2002 SEL 3.0 sedan. Lately when I turn off the engine. I hear a pop noise from under the dash area. I’m thinking it’s heater related because it does it when the climate control is off. In the last year I have replaced

• heater blend door
• heater fire wall hose assy
• heater core flush
• new radiator & hoses
• new thermostat

Is there some sort of vacuum thing that’s causing this? Heater seems to work otherwise. This noise is annoying. Any ideas as to what is causing this?

 

[SHOceptor]

Had two issues with the pop noise with my earlier taurus cars, on one I replaced the actuator but there were more than one. On my other I had to replace the blend door itself and one actuator.

Love Ford, hate their actuators.

Looks like you covered quite a lot of stuff there man, must blow some great heat now 🥵