Ridgeline steering noise
 

I've had my Ridgeline about 6 months now and love it, however I am
curious about a sound I hear usually the first drive after a cool
night. Some (not all times) after I start the vehicle and turn the
wheel right or left I hear this dull, hollow, "blunk" with each turn.
Noise is not heard at speed and steering itself is unaffected. Noise
goes away in a few miles. Any idea what is going on here? Thanks.