Somebody hit me in the back the other day but it wasn't very hard. It didn't physically hurt my truck and everything was fine so I didn't think anything of it. But the next day my rpm Guage and my speedometer stopped working. My brake light and my abs light also went off and my truck won't go into over drive (it's auto). Took it too a shop and they said they aren't sure but it may be the PCM. Any other ideas????

 

Why don't you report it to the insurance and let them handle it? If you were hit in the rear, the other person is responsible.