nogoodhood

have an 2004 Z71 Xcab 5.3, the truck has ran fine till the battery went died so i changed it an now when i try to start it, it starts fine but then goes dead, will not stay at idel any more, itll start then dead, over an over, checked all battery cables over an over all good. everything else with the truck looks to be ok. need help asap!!!!!!!!!

thanks for any info

EinST

Welcome to the forum. Does the the security light flash? If so, you have a Passlock problem. Try waiting 10 minutes with key on to see if it stops flashing. Then, try starting it.

nogoodhood

thanks for the welcome an info, i will try in the morning an see. thanks again

ToooTall1

Start the truck up and take it for a drive, the computer has to relearn all the engine and drive train settings again.

Plowboyup81

I recommand to everyone before you unhook a battery on one of these new cars, chevy, ford, dodge, hondia, any of them. Go buy one of those things that you put in the cigarette lighter plug that keeps the computer memory from clearing by keeping voltage to it with a 9v battery. So it doesnt clear computer. Have had fords come in after putting new batteries in, you have to have the security system reprogramed cause it loose the keys, new hondias come in you take battery loose and it clears whole computer have take car to dealer and get it reprogrammed. So a 20 dollar gadget is better then a 250 to 300 dollar fix.