It can be caused by condensation on the evaporator core and mold. Some times you can put some deodorant in the fresh air duct, but if it gets real bad, the dealer has some stuff they can spray on the evaporator core, but it isn't cheap. If the odor is fishy smelling it is probably caused by a LEAK in your HEATER CORE.
How do you replace a heater core in a 1998 ford expedition?"
where is the power window relay 1998 ford expedition
you dont, cause this motor does not exist from factory in 1998 expedition. only sohc
how do you remove the right rear axle on a 1998 ford expedition?
The Owner Guide doesn't show a cabin filter for the 1998 Ford Expedition
The 1998 Ford Expedition Owner Guide shows ( 5W-30 )
It could be the idle control P1507
The 1998 Ford Expedition owners manual shows ( 5W-30 )
How do you replace a heater core in a 1998 Ford Expedition?"
How do you depressurize fuel system to install filter 1998 ford expedition?
I had the same problem with my 2005 ford expedition... it was my chamshaft....... The repair is expensive... But it fixed the problem......
Bank 2 is the drivers side of the engine in a Ford Expedition