Tongue Jack
My tongue jack only works when connected to shore power or when fully hooked up to truck. I thought the battery might be the problem but had it tested - tested good. Any ideas of where to look?
Forum Discussion
I had that problem, its a bad ground. make sure where the ground wire is is on bare metal, scrape the paint and use a star washer to help make the ground better,The reason it works connected to the vehicle is the ball is a good ground and when using shore power you are using a different ground. hope they helps.
