A quick, not to helpful post: we replaced the tipm in our 07jku recently. So far has started every time. But like you said, I'm not entirely confident either.
Anyways, thanks for continuing to share, and good luck!
Tim
Thanks for taking the time to share.
I've done a bunch of similar. Figure next I'll pull the tipm apart, clean everything, redo the grounds down below there, etc. Going on the hope of stumbling across something or just getting lucky.
Tim
Our 2007 jku had the same symptoms verbatim. It was the starter relay contact points. I took the relay, twisted the pins slightly, just enough that it was a struggle to reinstall the relay. Hasn't missed once in 2 months now.
Always try the cheap and easy first.
Tim