I have heard this a couple of times and can not figure out what is making
this noise. It sounds like some sort of cooling fan in the dash. At first I
thought it was my CD spinning up, but I removed the CD and still heard it.
Here are the facts:
-Only heard it about 5 times since I bought the truck new
-Hear it when truck is off, even if I remove the key I can still hear it
-As soon as I open my door, it stops
-Seems that I hear it when I am running the truck at low speeds (<20 MPH)
for extended periods of time
-It is not the AC/Heater fan
Any one else heard such a sound?