If you mean where does the water come from? there is no drain hose, the water is from condensation that forms on the condenser. If you are talking about the freon you have to have it serviced.
In the 1990 Jeep Cherokee Laredo, you can find it pointing down under the car, on the front side of the firewall. Find the suction tube and liquid tube for the a/c here:
http://autorepair.about.com/library/faqs/bl406i.htm
The a/c condensation drain is straight down from that. It gets clogged with dirt/leaves. You can stick a wire up it to free up the gunk. Just wiggling the end of the tube allowed mine to flush out the dirt and the water just poured out. Gravity will help with this.
On a 1998 Grand Cherokee the drain is inside the right "frame rail". You have to pull the carpet back on the passenger side, drill a hole where the plastic goes out and clean it out with air pressure.
Behind the engine.
I have a 1998 Jeep Grand Cherokee Laredo 4x4 with the 5.2 v8. The cruise control fuse for mine was located in the steering column. Its an in-line fuse.
The only differences are between a regular Cherokee and a Grand Cherokee.
I mean how do you disassemble the fan blower in a 1998 Jeep Grand Cherokee Laredo. how do you remove the blower fan from the car in the Grand Jeep Cherokee Laredo.
A Cherokee would have the AW4. A Grand Cherokee would have a 44RE.
A 1998 Jeep Grand Cherokee has a four speed automatic transmission.
My Jeep Grand Cherokee Laredo 4.0L is all-time 4wd and its a 1998 model...
this is located in passenger door switch
The 4.0L has 42re The 5.2L has a 44re
NoNo
A 1998 Jeep does not have a cabin filter.
Pre 1998, it is on the back of the trans/transfer case After 1998, it is the rear axle abs sensor on top of the rear axle.