I really need your help,PLEASE

andy

Ok, heres the deal we have a 99 Dodge durango with 160,000 miles.I just just recently change the Plenium gasket,PCV,Plugs, Wires, Seafoamed and all that stuff.And it ran runs like a champ with no issues.Until last night.Heres the problem, I am currently in Virginia because of the military.And my wife is back in San Diego.So I have no way to check the truck.So the issue, she was at the store and came back out and the truck didn't start. It just clicked and clicked.So she tried to have someone jump start it and it would run.But as soon as she lets her foot off the gas it would die.So she calls AAA and they came out .And she said that guy was disconnecting different items stating that these types of vehical are know to do this when the battery dies.He something about the vehicle sercurity system.I dont really don't know.All I know is, the truck started and see got home safe.So she went out to start the truck again and same thing click,click. And it would start and die after letting her foot of the gas.But when it was running, she said that the volts where reading 14volts. Soooo please can someone give me some advise.

.Need a new battery.