My 1999 Jeep Grand Cheerokee doesn't have heat. It appears that the drivers side have some heat entering but its hard to tell. The passanger side is as if the air is entering from the outside, very cold. Hope you guys are able to assist.

Hi before making a suggestion, It would be nice to know if only the drivers sest is affected, or is the passanger side also affecte. This will permit in analysing if it is the element or the module. Thanks for the additional information

transmision problem internal

check temp. blend door actuator its what controls the temp doors to change from hot to cold usually pass. side door breaks on jeep grand cherokee's causing pass. side to be cool,have seen some on drivers side break but not as many

Check in the power Distrubotion Center (underhood) position 12, 50AMP...



Hope helps (remember rated this post).

The first place I would look is the floor board caps. Make sure one or more of them aren't pushed up, allowing water to enter the cabin. Also, because your defroster is probably on while it's raining, make sure the A/C drain plug isn't clogged. It's a small rubber fiting that sticks out from inside the firewall, behind the engine. Simply pull it out and clean it. When you pull it out, you might be surprised to see water coming out of the hole!

Just a couple things to check. I hope this helps! :)

-Jason

See the write-up at www.wjjeeps.com for this problem. Also consider the solution at www.jgcparts.com ( this solution is quick and easy but ties the driver's and passengers temp control together.)

try some electrical cleaner spray on your switch,sounds like its getting a bad contact

junk it its not worth it one of the sensors that open and shut the door are bad

this is a blower motor resister it is a cirurite board thay is attched to a wire that plugs in to the blower motor

if this helps you please take a moment and rate my responce

check fuses