I have the exact same issue just started today. Was in line at a fast food restaurant and turned my truck off to save gas. When I turn it back on it fired right up but I noticed the little orange park reverse neutral drive light wasn't there. I pulled it down into gear drive and went to pull up and it was slipping bad would hardly go anywhere. I immediately pulled out a line and out onto the street and started to drive but it was picking up speed slowly and wasn't shifting so I limped it over to a friend's house where I'm trying to figure out what the problem is I have no tachometer and no speedometer no indicator light on my gear selector. I've checked fluid I've checked fuses and everything seems good. I have been noticing a problem with my torque converter. Lately I've been getting the code for the torque converter clutch solenoid not engaging or functioning properly. But after replacing it and bench testing to make sure they were working, the problem persists. So I was thinking it might be a either a wiring issue somewhere in harness or a prob in the electronics. I've replaced the tranny two times before and have had same prob with tcc in all three. Both transmissions I have installed have been used, but I can't afford to drop 2k on transmission so here I sit. Trying to find something that will help resolve issue.