Re: Well, on to the next problem.....
You could check the thick wire connections on the starter solenoid to see if they are not corroded or not properly fastened, but big change that the starter/solenoid is the problem. Remove the negative battery terminal before attempting to put any tool on the solenoid nuts, otherwise the tool could cause large sparks or even weld itself when touching any grounded metal part.
JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks /
Pirelli Scorpion ATR 245/65/17/
Transgo reprogramming shiftkit.