I have a 1999 Tacoma 4X4 with a right turn signal issue. When I engage the right turn signal I get a fast flash and no signal. The left signal works and the emergency flasher works. I have replaced the bulbs and the flasher unit and still the problem exists. When I use my hand to slightly lift the lever the turn signal activates, but as soon as it fully engages the signal goes out. I am looking for what to do next. Any ideas?