hmm..the ol key entry on the tailgate that controls the power window quit today. The switch on the dash still works...Must be the switch becuase It has new motors all around. Any suggestions or specific technique on how to replace? Another question, the fuel pump was replaced 1yr ago..I am not used to a large truck but does the fuel pump tend to make a noise when running...a humming sound, high pitch sound? Working fine, knock on wood...Have receipt and plan on running by the mechanic who put it in..