The past couple of days my truck had to be jumped to start. Then it has started ok. Today going down the road, the service engine light came on and it felt like it was missing. This truck has 114k miles on it. My son in law said probably an injector. please help me with this. what would cause it go loose an injector. i don't drive it as much as i should. this is worring me really badly. I am shut down without my truck.