Originally Posted by devilsquid
Good morning all, I have a problem that I don't think has been mentioned here before. My 2013 Solera won't start but the starter motor does turn very slowly. I had just pulled it forward out of our RV carport (normal start up and no check lights). I shut the engine off to get things ready to wash the beast, wanted to move a little closer to the water source...no go. The chassis battery went flat after our last trip in Feb. I have had the chassis battery on charger for the last 3 days and it's indicating that the battery is fully charged and is on the maintenance float charging cycle. I tried to use a jump starter pack which made zero difference in the sound of the starter. Anyone have a clue to what might be going on. Any help, suggestions or opinions would be greatly appreciated. Thank you.
Going by what I have learned through various industrial and automotive courses... rule of thumb in electrical diagnosis is" start at one end of the circuit or the other, not in the middle, but, from the easiest most accessable place. In your case from the battery and it's terminals including body and chassis grounds. I assume the starter would be more difficult to access Don't change any parts, even cheap ones unless your testing says its bad. That's the difference between a technician and a hack parts changer!
Get a volt/ohmmeter and learn ( by google) if necessary how to test batteries, resistance and voltage drop.
Therin lies your clue!