Four Wheeler reader Allan asks:I have a 1985 and 1986 CJ-7 both set up almost exactly the same with the following exceptions: the 1985 has dual batteries with Kirkland batteries (6 months old) and a ...

For the sake of fully understanding this tech project, imagine your truck being parked for a couple of weeks, and when you finally try to start the engine, there’s absolutely no response. Why? Because ...