2007 Tahoe Won't Start

[barronj]

It was acting up (not starting unless it was jumped off via charger), and the original battery was leaking acid, so I replaced it yesterday w/ a new one from the dealer. Thinking that it was just a tired, defective battery.

Started right up & acted normal w/ the new battery. Today, it's the same symptom, acting like the battery is dead. I took the battery out & took it to O Reillys to have it tested, came back good (just wanted to rule that out).

I just clicks when you turn the key forward. Cables are all clean, never any previous problems with the truck. Starter is next on my list of usual suspects, but I found this TSB notice online

http://www.ehow.com/how_7847366_2007-wont-start-battery-fine.html

Should I just take it to the dealer? That will involve a tow...

Recommendations?

[davbrucas]

Alternator...

[BP]

Alternator...

It is now. GM alternators can barely run the electrical systems without burning up, the added load of having to recharge a dead battery kills them nearly every time. This is assuming it'll start now if you jump it off. Otherwise it could be loose or corroded cables.