heater blows hot air at all settings?

Asked by Mar 04, 2017 at 03:24 PM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

1 Answer


This happened to my 2005. The blend door actuator was the culprit. A real pain to change but doable. I'm not sure if your model is much different than mine but the dashboard had to be taking a loose and pulled back enough to get my hand in there and get the screws out to change. I believe I found youtube videos that helped me out.

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