blackturbo
Forum Crew Member
- 42
- 1
- 6
Hi all,
please forgive me, iam not an EMT. But i cannot find any answers from the basic ford website, as nobody knows about ambulances. Iam hoping, a mechanic that works on these things can answer my questions. I use my ambulance to haul dirtbikes and 4 wheelers and my computer business, . the reason I chose to buy a used ambulance was it was already wired up with electrical outlets for my computer repair business, and buying a used ambulance, I had a sense, every aspect of the vehicle was maintained all its life.
It has seem both batteries become discharged after a few days of sitting, even know the main battery switch is in off position during its sitting times. I have taken steps to diagnose, that yes, even with the master battery switch being in the off position, the batteries still have a 1-3 amp draw on both of them, which is the reason its killing them. the engine block heater is disconnected. I have to manually disconnect the batteries. with the main battery switch in its off position, nothing works, . but since my batteries are dying after sitting, i tested them, with the main switch in off position and the batteries are still getting a draw from somewhere. So I have to manually disconnect the batteries at the post to keep them from dying when it sits. So its something between the main battery cables and the main battery switch inside the cab. and its difficult to trace cables . but it seems there is something between this point. maybe somewon can tell me. thanks ! If i disconnect the main cables from the batteries, the batteries still hold their charge for more than 2 months or so. so something between the main cables and the main battery switch has a drain. maybe somewon knows what this is, as with the main battery switch off, the truck is basically dead, it doesnt do anything even with the key on. so one would think its all off, but it isnt, there is still a current draw somewhere.
mark
please forgive me, iam not an EMT. But i cannot find any answers from the basic ford website, as nobody knows about ambulances. Iam hoping, a mechanic that works on these things can answer my questions. I use my ambulance to haul dirtbikes and 4 wheelers and my computer business, . the reason I chose to buy a used ambulance was it was already wired up with electrical outlets for my computer repair business, and buying a used ambulance, I had a sense, every aspect of the vehicle was maintained all its life.
It has seem both batteries become discharged after a few days of sitting, even know the main battery switch is in off position during its sitting times. I have taken steps to diagnose, that yes, even with the master battery switch being in the off position, the batteries still have a 1-3 amp draw on both of them, which is the reason its killing them. the engine block heater is disconnected. I have to manually disconnect the batteries. with the main battery switch in its off position, nothing works, . but since my batteries are dying after sitting, i tested them, with the main switch in off position and the batteries are still getting a draw from somewhere. So I have to manually disconnect the batteries at the post to keep them from dying when it sits. So its something between the main battery cables and the main battery switch inside the cab. and its difficult to trace cables . but it seems there is something between this point. maybe somewon can tell me. thanks ! If i disconnect the main cables from the batteries, the batteries still hold their charge for more than 2 months or so. so something between the main cables and the main battery switch has a drain. maybe somewon knows what this is, as with the main battery switch off, the truck is basically dead, it doesnt do anything even with the key on. so one would think its all off, but it isnt, there is still a current draw somewhere.
mark