I have a 2007 Yukon Denali XL. It sat for a little while this winter. I started it about 5 weeks ago but had to jump start the battery. I continued to go out every couple of days for a week and start it. No problem. I then let it sit until last week and tried to start it again. It will not turn over. I tried jumping the battery, checking the + and - connections to no avail. I tested the battery, it was a little low but nothing major, but I purchased a new one just in case. I installed the new battery. Still nothing. When the ignition is turned on it will click once then nothing. I have headlights, dash lights, etc. I recently purchased a new + cable but have not yet installed it. What would be your recommendation at this point. Thanks for your help!
