Originally Posted by emilyphotograph
Thank you everyone! ✌️������ I've been having issues with the main battery and just got a new one. I was able to start the bus with the button popped out and also with it in but since then it has been very cold and today I tried to start her up but no luck... sounded like it wanted to start but I stopped on my third try... any ideas? Is the button for the auxiliary battery? Best wishes.
Diesel engines are harder to start in general, very hard to start in cold weather. They have dual batteries to help. They have pre-heaters or glow plugs to help. Sometimes the use ether injection to help.
They have engine block warmers that plug-into 110v extension cord to make it easier to start. This is your best bet. It may already be installed. Look by front bumper for 3- prong house plug.
Charge your batteries before you try again.