04 Envoy. Six months ago had issue with MANUAL,( slider), AC . Got only 5th speed. Was bad resistor pack, which I replaced. Now, suddenly, get no blower coming on at all. . Compressor comes on, have power to wires on blower, all fuses good, ground block looks good, wiggled everything, removed blower to bench test, tapped on relay in new resistor pack, swapped out ignition module with my other TB, no other weird electrical issues or codes. Invented new swear words. Mooseman: What have I missed checking?