Clicking noise

[apfurste]

Hi I tried searching for a topic to see if anybody is experiecing my problem.

My son is on deployment and his 2013 JK is at my house and I have started to fix it up with mainteance he neglected.

I notice a fast clicking noise randomly when it is sitting while engine shut off. I cannot for the life of me figure it out. It sounds like its coming from behind the dash from the heater/ac controls? Any ideas?

 

[Anybodyhome]

A lot of times it's just the heater coil or other piece of equipment that gets warm or hot while the engine runs and as it cools off and starts to contract, it makes some noise, especially if there's a big temperatuire difference between the engine bay and the outside temps. Has it been a while since the engine ran for any length of time?