4905 rear air bags will not air up !!!!

[johnjem]

Well if the rodents didn't chew on the air lines. I would be fine!!! I have two plastic air lines running with some electrical wires to the back of the bus,,,running under the bus in the center!!!  Can not  air up the rear to get underneath the bus to repair.Any ideas. I may have to dig!!! ground is very very very soft!!!