Any ideas on issues with the wife's car? 07 Escalade 6.2 90K. Started out not starting every once in a while but would start when jumped off. Now it's doing it every time will just click click when trying to start but can still be jumped off by another car. I have replaced the battery, new starter, & took the alternator and it tested good. Any ideas on what it could be? Any help would be appreciated because I'm getting pissed at it.