Having problems with your 1998 Jeep Grand Cherokee ?

Water on the floor

\015 I have an issue with water in the floor mostly passanger side. Does not seem to be a leaking windshield since it will do this rain or shine. And does not seem to increase with the use of AC. Coolent level remains fine??????\015 Posted / edited by AnonymousUser on : 20-05-2019

Answers :

I've ran into this problem before with another jeep. What happens is the condensation drain line from the evaporator housing gets plugged with the material that insulates the housing and the water can't drain and seeps through the seems and drips on the passenger side floor. Chrysler did at one time sale a plug kit for this. What you would do is drill a 1/4" hole in the side of the housing on the left hand side near the bottom and put a stiff piece of wire in it to unplug the drain line and then plug the hole with the plug kit from chrysler. just when your drilling the hole make sure you don't drill into the evaporator core or your freeon will leak out as well. I'm not exactly sure how far from the bottom to drill the hole if I remember right it is 2 inches just about center. Chrysler did have a service bulletin on this you may want to ask them when you see bout the plug kit.
Could be your heater core and can also be the drain line on the evaporator housing plugged. I know that at one time chrysler had put out a service bulliten on this. They even used to sale a plug kit. What happens is the condinsation drain line on the evap housing gets plugged with the material that insulates it causing water to collect in the housing and seeping out the seems and slowly dripping on the passenger side floor, I believe that the material is just styrofoam so the condensate line doesn't completely plug just holds the water back enough to collect and leak out.. What you would do is drill a 1/4" hole on the left hand side of the housing and stick a stiff piece of wire in the hole to clear the drain line and use the plug kit to replug the hole that you drilled. Don't remember exactly where to make the hole but I think it is on the left hand side about 2 inches from the bottom center. Like I said there was a service bulliten on it so check with Chrysler first and becareful not to puncture your Evaporater core when making your hole.
Repair Help & Product Troubleshooting for 1998 Jeep Grand Cherokee

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