My 97 dodge ram 1500 w/318 80,000 miles cuts out at random times when driving. There doesn't seem to be any ryhme or reason, its like someone turns the key off and then back on. I just had it into the dealership and they said the tuneup they did should stop this, but it didn't. Sometimes it will backfire when it starts back up (manual tranmission). Ignition module? fuel delivery problem? HELP!!