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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
A clicking relay means that the control side of the relay is having its power turned on/off repeatedly. This is usually due to either a short or loose connection. Find out which relay it is and maybe we can point you in the right direction.
When is the clicking happening and is it consistent or does it randomly happen?
Soon as I key the car on it starts clicking and I found the name of it...now I just don't know were to buy one its called AC wide open throttle cut off relay..
You could try bringing it to your local auto parts store and see if they have one available. If it is a standard relay then most likely they do and are fairly inexpensive. Good luck...