If it's not due to rain, the heater core is probably leaking.
WHAT?
Air suspension fault, most likely an air bag leak. Best to look with a spray bottle of soapy water.
Pasenger side post converter
when you open the hood on the pasenger side front the first plug on the left is 2 the next 4 then 6 the back pasenger side is 1 3 5
pasenger side on fire wall and driver side to the left side on dash
pasenger side in front of the rear tire
Check your heater under the dash, you mAY HAVE A LEAK FROM THE HEATER CORE UNIT.
A water leak from the radiator in to the passenger compartment is usually a sign of a leak in the heater core. If the water is not from the radiator then there may be a leak in a window or door seal, or a hole in the undercarriage that is allowing water from the road to soak the carpet..
On my 91 it is on the pasenger side close to the firewall. under a brass cap
Bank 1 is the pasenger side of the engine
You need to identify the leak before you can fix it.
It may be that your Heater core is leakng Antifreeze. Not good.