Ok folks , am leaning towards new batteries but this past w/e went out to start the truck and got about 5 seconds of crank then click,click,click. Jumped it and ran fine the rest of the day , starting and all .Next morning same problem again..Hooked the charger up and let it run for about 3 hours and drove to work 9 hours later it starts fine but volt gauge looked a little lower than where it should have been when turned the key to start. I have no idea as to how old batteris are , and this is the first sign of any starting issues.Can hear fuel pump come on and shut off and the glow plug relay going off...I think...Sooo... Batteries or should I be chasing a short????? Thanks everyone.