hello Guys any body out there? i have a problem and need help from you guys. I have a 2014 volvo D13 daycab and my air suspension bag are not working any suggestions. i check the rod and the part where the rod is holding the arm and everything looks fine. it was working a day ago and suddenly i went today air in tank is fine. all 3 tanks is full with air but it doesn't inflate i play up and down with switch and nothing