Why smell gas when ac on for ls 400 1991?

If you smell gas when the air conditioning is on in a 1991 Lexus LS 400, it could indicate a fuel leak in the engine compartment or near the evaporator. The AC system can create a vacuum that draws in fumes if there’s a crack or loose fitting in the fuel system. It’s essential to address this issue immediately, as it poses a fire hazard. Have a qualified mechanic inspect the vehicle to identify and rectify the problem.