My truck shut off after hitting large bump in the middle of an interception that was covered with rain back in February. It cranked right back up and has been running fine since except for the past week. When I hit a hard bump the truck engine would die and require me to restart. I took the breather off and cleaned the throttle body and electrode connections. Checked the connections and everything seemed okay. Took for a spin around the neighborhood and after 10mins while turning right onto my home street the engine died again. This time it wouldn't start right back up. after about 2 minutes it cranked right up and was good to go again. The battery is only a few months old. Truck runs strong and just as good as it did when I bought it when it works. When it dies I still have all electrical systems but won't even try to crank up until it decides to work again. Any Ideas?

2008 ram 1500 4.7l Auto 170k miles.

 

Thinking of changing the TIPM. Any thoughts?