Heater Repair Kit Blend Door Dual Zone Climate Control fits: 1999-2004 Jeep Grand Cherokee

If you know… you know..these are a pain in the buns to install, but i did “thru the dashboard” setup and used a hotknife to cut. no shredded pieces of plastic blowing everywhere inside the vents or stinking up the heater core from a dremel. The two doors are separated by a plastic fin inside the airbox to keep the temps separate, but that barely works anyway so i removed it to make installing the inner door easier. i did have to widen the hole to fit the closest new blend door post/peg. I recommend using some grease on the middle hinge/connection point so the doors can turn independently. Dont forget to pull the fuse to calibrate the AZC. make sure it all works before you button it all back up. I used foil/thermal tape for that. So happy to have both dual zone working in my 25 year old Jeep Grand Cherokee Limited, so cool!!

Worked great, easy to install. Now I have heat again. One thing to note: Put anti sieze compound on the tab and hole where the doors hinge on each other! A few months after I installed this I had no heat one morning. I ran the calibration procedure and had codes for the blend doors again. WTH? I took it back apart and pulled out the blend doors. The hinge (aluminum tab and hole) where the two doors rotate was frozen solid. I had a hard time getting the doors apart from each other. I'm not sure why, but there was serious galling on the little tab on the outer door that fits into the hole on the end of the inner door. I cleaned it up a bit and applied some anti sieze compound to the tab and hole to lubricate it. Working good again now.

Great product and was way easier than pull the dash. Install was really easy. I would suggest looking on you tube for the install first it gave me a way better understanding of what I needed to do. I heated up a heavy/thicker knife with a torch on was able to slice right through the plastic it was a nice thing cut and really easy to put back in place

These came quickly. They are well made. Go to the manufacturer's web site to get installation instructions. I used a hot electric knife rather than a dremel to cut out the plastic. I'm glad I did since you are very close to the heater core. The website also has instructions on recalibrating the motors, which is necessary. It took me a few times to get the motors lined up with the doors. The install took me longer since the hot knife was slow going in the cutting department. But iin the end, they work and will have heat this winter. Jeep dealer wanted $1,400 plus to repair the blend doors. This cost less than $100. Update: The blend doors have been working great and not a big difference in being able to control the temperature on the passenger and driver's side. I still think the hot knife is the way to go because the heater core is very close to where you have to cut and you don't want a fast-spinning bit getting next to that.

I have a 2002 jeep (125000 miles) and the heat went out on the passengers side. Did a little research and learned this is a common problem with the climate control on the 1999-2004 Jeep Grand Cherokee's. There's a couple of video's showing how to fix the problem. One demonstrated how the dealer repaired the blend doors and another JGC parts video. Repairing the blend doors the dealer way was more complicated and beyond what I wanted to do mechanically. The instruction from JGC is probably 90% and 10% making your own adjustments. Once I cut the section out per the instructions, I was able to see a blend door and the plastic separator. Instructions stated to cut out the separator and discard. I learned when putting the JGC blend doors together and attempting to fit them in place, further cutting of the plastic separator was necessary. Simple notching was done so the JGC part fit in place. When you remove the small motor, there's a plastic insert that is removed with a pair of pliers. I observed it was a little tight for the JGC part and opened it up by taking a few burs off. I made sure everything was moving freely, put the motor on and turned on the system. Noticed only one of the blend doors was working. Disconnected the negative on the battery for a few minutes and reconnected same. Turned on the heating system and found the system reset itself and was now working. Put the part that was cut out back in place and used the tape that was supplied. You might experience a difference in regulating the heat from the original blend doors, but it's not a big deal. I have heat on both sides and my air is working fine. The dealer will not cut out a section of the glove box, they replace the entire blend door box inside the dash. $800.00-1500.00 that's what it will cost you at the dealer. I fixed the heating problem for under $100.00. I used a dremmel tool with a cutting bit to do all of the cutting. Have a vacuum available after you make the cuts and keep the job sight clean.

Just finished installing them so far so good I got heat and a/c two things I didn't have before and the instructions are pretty easy to follow and they fit right into place after cutting to get to them, and the aluminum feels to be good quality and definitely more durable than the old plastic ones!

Good quality. But honestly. If you need this and you found it. God bless bro. Cause the job you are about to take is a long road of pain. I installed this years ago. Thought sweet problem soved. Until because of the good quality and strong materials of this new door the back motor stripped itself out inside this guy. Leaving me to yet again rip open this problem child and fix for the third time.

This is well designed repair kit. Get the instructions from the manufacturers web site and follow them step by step. Parts fit perfectly. I used a soldering iron to cut out the plastic panel The whole process took me 2 hours, including testing and recalibration.