I have a 2008 Titan LE with 39k miles. I have a weird sound that just started. This only happens when the truck is cold from the starting position. At 5-7 mph, just before the truck goes into the next gear, I hear a sound from the front drivers side that sounds like a loaded spring releasing. It is only when the vehicle is cold and only in the 5-7mph range. Is this normal? Any thoughts? Thanks.