Expedition

[LeNeve]

NOTE: When the battery (10655) is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 mi) or more to relearn the strategy.

Could this have anything to do with the weird pumping sound I am hearing??

If my questions are getting annoying.. please just tell me to shut the fuck up..

Nope. That's talking about drivability issues. Never had a pumping sound problem. Is it one of the speakers? Does it go away when you adjust the balance, and/or fader?