I just purchased a used 2010 2275rli with a 6.2l. I need some help. A couple of questions why 2 switches marked bilge 1 up top for on an auto and 1 over by blower marked bilge. Which do you use and when? Any advise on how to fix the spedometer. I used a small drill bit to clean out the intake hole but the speedometer still jumps around? Any help would be greatly appreciated.
Ron
Ron