Can someone help!!! I got 02 ram 1500 4.7. I blew my radiator then replpace it with a new one now my cylinders are misfiring. It started with just the 6th then went to multiple cylinder misfire. I've done plugs changed the 6th and 3rd ignit.coil and it went back to just the 6th ignit. coil misfire. Ive done a compression check. The 6th ignit.coil and injector have no current going to them. What could it be or what should i check?