?1 as said above is most likely a broken or unadjusted cable, I just broke one about 2 hours ago trying to get defrost/floor heat to adjust. I will move by hand till I can order and fix with a new cable. ?2, possibly a very small leak at core that is evaporating before you notice any leaks. A small amount could smell strong with everything closed up.
kevyj87 '87 I6 5spd, 215,000+ miles, Herced, Nuttered, Weber, HEI, RE 4", 1" BL, 4:11's, np231, 33x12.5's, SYE & shaft, 1" brown dog mm, home made bumpers front & rear, Ramsey 8,000lb winch