Problem with 2007 Denali XL inconsistence in starting
When I started my truck it thumped as if it would not but I held the key to the start position and it clicked a few times and did. I parked it for 2 hours and came back and it was dead. I got a jump and went to an event for 2 hours and it started okay. The next morning would not start. I again got a jump. The service battery charging system message and light came on. I drove it for about 2 hours while store hopping. At final stop it would not start. Sat for 5-7 minutes and tried again and it started after some clicking. Came home and parked it overnight. Tried it this morning and it started after some hesitation. I was told it was the battery and not the alternator because when the positive wire was taken off the car stayed running. Is there something else that can be causing the problem. What is included in the battery charging system?
