new drone sound
 

i've had my tunes for about 8 months now and everything is great. i was running my a/c this weekend on a trip to GA and now im getting the drone sound. it only happens when the a/c is on. All help is appreciated.

What year truck?
What motor?
What CAI?
What octane tune?
:shrug:

The problem is usually caused by the very slight change in throttle plate angle needed to overcome the power usage of the compressor.

Bill says that trying to "fix" this issue sometimes works, but most of the time won't be worth the effort. Unfortunately, it is probably something that will have to be lived-with.

06 fx4
5.4
air raid
normally run 87 econ or 87 performance tune.

Thanks for the responses.