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rewepython

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Hello all. I have a question about my '93 mark viii. When I start it when it is cold out, it makes a tapping noise that sounds like it is coming from under the dash board. I am assuming it is a code of some sort because it comes in a pattern of 9 sharp and one soft sound. does anyone know what this is? any and all help would be appreciated. thank you.
 
Possibly the heater ducking system switching modes from the default defrost setting to whatever you have it on, for example if you turn on the heater when you start the car, or when you turned it off when you last drove it. Try starting it cold but making sure the A/C system is off. Also, try just turning the key on and not starting the car.
 
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