OK I'm new here and hope I'm posting this the right way. Anyway I have 1995 k1500 with 5.7l 4l60 trans, with 203,000 miles. Anyway a few months ago my truck was acting like it wanted to stall, so I changed the IAC and it was fine up until a few days ago, then it started to actually stall. So I changed the fuel filter and it actually seemed worse. Today I changed the ignition coil (did nothing) so I changed the throttle position sensor, now it doesn't stall but it shifts like a son of b**** and has no power. I'm kind of at a loss. Any help would be greatly appreciated.