Ticking noise from AC

[jvm051]

So another AC thread.
My car has developed a metallic ticking sound in the engine bay, but only when the AC is running. Turn off the AC but leave the fan on and it's gone. Turn off AC and fan off and it's gone. Even more interesting seems to be happening in the hotter part of the day (Arizona so already 105+). When I leave in the morning it's around 80 degrees and I commute about 23 miles and when I get to work it still sounds fine. Afternoon drive home, and I get the tick. Only reason I even noticed it was while waiting in Walgreens pharmacy drive through. AC is blowing cold for now... Any ideas?

Edit...I should mention it's not the normal clutch sound it would normally make.

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[Sasuketr]

Are u sure its a ticking noise but not the dash and consol shrinking with the cold air? When the car is hot under the summer heat and you start your AC, the expanded surfaces like dash board and the clips that hold the dashboard will start creaking and ticking due to temperature differential deformation. It should go away when all the components are at the same temperature as the cooling air. This will always take some time.

 

[jasonstang]

The compressor kicks on and off makes a tick sound.

 

[jvm051]

It's a legitimate tic/metallic pinging sound that can only be heard outside. Not from inside. Also not the compressor clicking on and off.

 

[SpeedLu]

Can you record a video of it?

 

[TX_Rydawg]

Does it sound like this?

 

[astolt12]

Does it sound like this?

I hope for his sake it doesnt. If it does, let me know...I've been through this problem at 2500 miles on the car...

 

[manny.what]

can you reupload the vid I am having a clicking to

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