Awesome! My heater core just failed. I just pulled my dash on my 2002 and replaced all the parts listed for well under $200. I took my time and followed your video. I had to maneuver around my remote start wiring, but no problem. Now tomorrow is re-assembly. Thank you so much for your detailed and thorough video. Cindi

When my heater core goes out, I'm selling my WJ. This video convinced me.

just wanna let you know. as a non-gear head but a guy who wants not to spend 950 to get it done, your video got me to fix my jeep trouble with the heater core. good stuff. replaced heater core. all good. its a jeep thing.

Oh my goodness. I sincerely thought that I would be up for the challenge, but having to remove the steering column just so I can have heat on my side is ridiculous. I will say that this video was not only informative, but I'm impressed with watching this take place one handed! Thanks for the video.

a monumental recording effort to do this, I would have set fire to the vehicle 1/4 of the way through. Yes however designed this horrible setup should be put up against the nearest wall...They literally built 97% of the jeep around the heater core. A simple slip-in design could have been done a dozen different ways. hats off to the utuber for doing this.

I have a 99 Jeep GC Limited. My heater core was leaking and the blend doors were broken. I saw your video and it convinced me I could do the job. It took me a full weekend but I got it done and I couldn't be happier with the results. It's definitely a time consuming job, but like you said, be patient, don't get frustrated, and keep track of what your removing and it'll work out fine. Thanks for your great video.

hey man just dropping a comment to say thank you for this video. I got my heater core done in my 99 jeep grand Cherokee in just 6 hours thanks to you and your video. saved me a gnarly headache and money. so again, I thank you sir.

We did it! My friend asked me to help him change out his heater core in one of these finely engineered Jeeps - what a job! Had we watched the whole video before we started, I am not sure we would have attempted it. But due to the accuracy and simplicity of the video, we made it. Follow it step by step, and you can do it, too. Great suggestion to color coat the screws and their locations. Make sure you have plenty of light and set aside a full day for the job. If you have the factory hose clamps on the heater core connections, break-off the eyelets before re-clamping. We disconnected the rainbow-colored vaccum hoses that control the dampers when we pulled the dash away, no problem. Make sure you do the ignition disconnect and reconnect with the key on. Good luck! You can do it. Thanks to the EXCELLENT instructional video this young man created. We really appreciate your help.

Thanks for the video. The Chrysler engineer that designed this needs to be beaten.

This is a great step by step video for any WJ Jeep owner looking to replace their Heater Core / AC Evaporator . Had come across this video last night. Within 2 hours of watching the video I was able to get my HVAC assembly out of my 99 Grand Cherokee Laredo with no problems. Video quality can be a little better. However the thorough instruction and clear steps make this video a great watch. Going to swap out the heater core today and re assemble everything together gain.. Take notes and make sure you arrange your screws in the order they had com out. Using ziplocks bags helps to organize.

Thank you for a very thorough and detailed description of a job, step by step that would have taken me a month of Sundays to complete. The Jeep Dealership gave me a price of $1300.00 to repair my HVAC unit in my 2000 Grand Cherokee Limited. Good Job I will give you a 5-star rating. Let the work begin.

I know this is an old video, but it helped me IMMENSELY! My son and I watched the video multiple times before we tackled the job. By the time we went to do it, we had it memorized. Took under 90 mins to get the dash out thanks to this vid. It's not a fun job, but all it is, is allot of screws and wire clips. Don't be too afraid. We did the blend door upgrade and evap as well, took 5 hours to replace everything and be driving again. Thanks again!

Omg I can't tell you thank you enough for this video. We have a 99 with the EXACT problem and thought we were being taken to the cleaners when we were quoted what we were when we took it in to get fixed. We declined at that time but now I see what a painstaking process this is just to replace a couple pieces. Thanks I was also impressed with your knowledge of what you were doing and thanks for showing what was broken.

A friend of mine and I just tackled this project. Your video was amazing and step by step walked us through the process perfectly. One thing that's not shown, is that once you have access to the hvac system the old heater coil simply slides out and the new one slides in, so no necessary disassembling of the hvac system. When it was all said and done, a pretty easy project, just time intensive. 4.5 hours for my friend and I working together. Now that we've done it once, we could probably cut that time in half. Trouble Areas: 1. Pry-bar release from right side. 2. Heater floor vent screw for driver side. Break it off just like he recommends :). 3. High release bolt up under steering column for final removal of dash, hard to get to. GREAT VIDEO! Thanks!

I congratulate you on your efforts, patience and perseverance in attacking this job. My husband was totally impressed.Great video and THANKS!

This is a great tool to DIY... Took me about 11 hrs with the help of my wife... From start to finish... And saved a ton of money... Go ahead and replace the a/c evap core while your in there. All my blend doors worked great so didn't have to replace... Hot now blows really hot..... Thanks for the great tutorial.

glad it helped you out, its ridiculous how much shops charge for something like this. remember to hit the like button, and maybe subscribe. I've ran into a few other issues on my jeep and will continue to make videos whenever a problem arises. thanks!

Your video is still useful years later. You saved many potential headaches. Now if Jeep can build like Toyota does no one will have to do this in the future. Thank you

Followed step by step & like you said it's more time consuming & not to difficult. Now comes the part of putting it all back together. Thank you!!! Not everyone is as through as you!!!! 👍👍👍

Dude. How you kept your cool through the whole job I have no idea. Great job. I was going to cut my system open and do it that way but you made it look easy. It's not hard it just takes time. Perfectly said guy. A+

Very helpful video. Replaced my Heater and Evaporator cores. Two big hints to start: Push seats all the way back before disconnecting battery. Also, remember to transfer the two studs from the old evaporator to the new one if needed. Also, get spare reinforced o-rings for the refrigerant line connections just in case. I also replaced the deteriorating foam on the blend doors using 1/8" adhesive backed foam sheets I found at Micheals. Have some 1/4 or 1/ thick 1/2" wide weather stripping for some of the mating areas for ducting. Thanks to the several people who have created these videos.

This is very helpful. Thank you for taking the time to make the video. I would still be trying to figure out how to just get started, but as it is, I just replaced the heater and evaporate cores and it's all going back together. Thank you again.

That is an awesome video , very precise and easy to understand...BUT... in Cleveland ohio you find out you don't have heat until around November or December. So believe me when I tell ya it was a long, cold winter!!! There is no way i'm going through all that when it's 20 degrees outside, At an cost of around $800 I had to go without it's just not worth it. I put a brand new 90 plus efficiency furnace in my house for $800. That is obnoxious how much you have to go through to get the heat fixed. I wish car manufacturers would design something for easier access. Good job on the video!

Definitely wasn't this guys first time. Probably one of the best detailed, to the point videos I've ever watched, and I watch a lot, as a diy shade tree mechanic that only goes to shop for inspections and sometimes tires.

I haven't even read any comments. But I have to hand to you!!!! Your AWESOME!!!! Very well expained, recorded and very informative!!! I really like how you went in depth on everything!!!! Thank you so much for taking your time & making this video!!! Got to help my son with his heater core replacement & you hit it right on the money!!! Thank you!!!!!

Couldnt be easier with your video. Biggest job I've ever done and YOU made it easy. Saved sooo much money. Thanks!

I have been wanting to do this job on my car but was just waiting for a good video guide like yours. Thanks to you I have finally done mine and thanks for the time and effort. I owe you a six pack. Something to add as fail-safe. Prior to reassembly, I pressure tested the cooling system and vacuum tested the AC system. I rented those tools for free from parts store. Thanks again.

One of the best videos on a heater core/blend door replacement. Awesomeness

Thank you for the video! Being that it’s getting cold right now, I was NOT looking forward to this project. However your video helped me and I had absolutely zero issues once it was finished. I now have very hot heat!

Can't thank you enough. Completed mine in about 10 hours. You saved me a bunch of cash, good looks!!!

Great video to change the evaporator (I'm using it to that now cuz it's leaking) or heather core (changing that too just in case) but the blend door can be repaired without doing all that work. Doorman has a blend doo kit (much stronger than the original) that I used to repair mine about 6 years ago. You cut into the HVAC box behind the glove box. Took me about 30 minutes to repair. This said the detailed video is a real lifesaver. Thanks a million!

Just did my daughter's 2000 JGCL, hobby car. Would not have done it without using your video. Thank You!

Awesome video. I was able to easily follow the video and make the same repair on my 200 WJ. For each step I put the hardware in zip-lock bags and labeled and numbered them 1 - 18. Then I just put them back in reverse order. Worked out great. Couldn't have done it without the video. Thanks again.

Thanks for the video - I had a long delay between disassembly and reassembly of my 2001 Jeep GC and there were several wiring connections that I couldn't remember where they went lol - Your video set me straight on all but one connection. We also wrestled under the hood with those hose connections - removing the few parts you did would have made that a ton easier - thanks again!

Awesome guide. I used the first 90% of your video to get behind the dash and replace the rotted foam seals for my AC. Went from no air flow on passenger side to about 50%, way better . Great video again.

Thank you for not cutting through hvac. I`m here because someone someone did that on mine and now i have to repair it. Great video!

I used this video last Saturday 10.17.2015 to replace the heater core, a/c evaporator and blend doors in my '99. Thanks to you everything went very smooth and I now have heat! Thank you so much for this video!

I just finished! Couldn’t have done it without this video. Near the end of the job, my phone battery died and I couldn’t watch anymore. This caused me to miss a ground wire under the center console. Not good. Luckily only took 5 min to fix. Thank you!

Just bought a '99 Grand Cherokee, the heater core is out and it blows condensation into the vehicle. Dude told me the core was around $80, but until seeing this video I had no idea how complex (or costly) of a repair it is. I'll let you know how I do when I give it a go!

Extremely helpful! Thank you. Pitfalls I ran into doing this job: One of the blend door actuators was in an odd position. Connected a couple wires to it from the battery (wouldn't recommend this, not my idea but it did reset it.) After reinstalling the HVAC unit realized the new evap core did not have bolts for the ac lines. Had to remove it and use the bolts from the old evap core. There was also a bracket for the pipes missing from either the evap core or heater core that I had to use from the old parts. It may be a good idea to find torque specs for some of the bolts/nuts. I would do this for the steering column at least. Electrical problems is my current issue. It could be unrelated but the instrument panel went haywire today. Gauges not working and every warning light lit up. The window switch lights are also turning on and off. Be careful removing the electrical clips and harnesses.

He took all this apart with one hand

theres a lot of these videos but this is by far the best one. one comment though, either im cursed or you pre loosened all hoses, harnesses and clasps cause you were pulling stuff with one hand. Spend 5 hours trying to get that final bolt on the steering column off. used PB Blaster, 3 different non-destructive nut extractors and pulled a muscle in my back. Finally said screw it and left the column in. we'll see if i screwed up my clock spring. and those hoses at the end, the difficult part wasnt getting the clamps off it was pulling the hose. again, think i pulled a muscle and had to buy a $40 clamp tool so i could hold it open (i had self tightening) so i could double fist it. at any rate, top notch video and thanks for all the help

Thanks so much for this video! I have to do this for my daughter. Pep Boys did this a few years ago to replace the heater core. Heater core is leaking again!! Thank you Pep Boys.

Well done!!! The GC models have to be among the most complicated to pull, aside from the sedans (300C, Charger, Magnum...). You did a great job, thank you for taking the time to make this video and sharing it with the world!

I'll need a video on putting it all back together lol

Really excellent tutorial. Didn't miss a single bolt and very clear video. Saved mee a couple of hours work just to find out where and how the dash is bolted to he body. Thanks a lot.

Great video, I was able to replace my heater core. I watched this as I was working on my jeep. I couldn't have done it without your video. Thank you.

The most helpful and comprehensive video on the subject. Thank you!

Thank you for posting this video it was really helpful to know where all the nuts, bolts and screws were, It made everything less complicated.

Did this repair! Thank you. One tip / trick. detach the hoses in the engine compartment from higher up, place zip lock bags over hoses and rubber band them to prevent spillage. Also, there is a vacuum hose coming off the HVAC running through that same hole. Be very careful on reinstall not to pinch it or only the defrost will work even if the door actuators and doors work just fine. Vacuum hose activates them so make sure you get that right. Great video.

Wow, that has to be one of the most detailed vids!! Thank you so much for doing this.

I followed your video step by step while replacing my heater core. Just finished the repair. THANKS for posting the video. I could have never done it without your video! Don't even want to think about how much a dealership would have charged for this repair.

LOVE the help ..cant get enough ! Great learning experience,Going to continue to learn...

Thanks for the upload. I am about to do this on my 02 grand cherokee and it helps to know what to expect.

Thanks bud did this last year right before winter started. Appreciate it. Much love!

Used this video to help me go thru the steps! Thanks Man...this saved me time not having to look for all the bolts.

Took me two days, but I got it done. Thanks man. Saved me a lot of money.

Currently replacing my heater core thanks to this video. Thank you!

The blend door was the damn problem. OMG, extensive job. Good job!

Great video man. I've changed the heater core on a 04 liberty, getting ready to do it on my 99 WJ. Pain in the ass, but this is a great walk through

What a fantastic effort. Good pace, and great commentary. Very useful. I have a 2002 Overland 4.7L (in the uk) and the climate control does not behave. I’ll need to have a look at it all before summer, so this guide is key.

Thank you so much for this video it saved me a lot of money there was a mechanic who was going to charge me $ 400.00 plus $ 50.00 an hour for labor to do this and another was going to charge me $ 250.00 to do this , I needed to change my heater core . I looked it up on youtube found your video and I said well lets do it and I did . there were a few things that were different but all in all yes your video saved me a lot of money , I thank you very much please keep up the good work

Thank You! I played along when I did mine, it was nice not having to hunt for the bolts to unscrew- especially that one up under the dash.

your efforts add up to making u-tube a magical experience. here one can find even the most unlikely of videos. and get new ideas of it being something do-able after all.

Great video! Was a lot of help. Under the hood, you don't need to remove the coolant bottle, electrical connectors, mounting plates, etc. All you need to do is to disconnect the upper an lower heater hose, and disconnect the two AC lines with a 13mm socket, and of course, the center bolt that holds the HVAC box to the firewall.

Holy shit. I brain hurts just thinking of keeping track of all of the bolts and nuts and connectors. I can already see how this is going to end. Once I get out of the hospital because of the heart attack I am going to have because of the frustration - if I survive - I am going to have my dashboard hanging out one side of my Jeep and the HVAC unit and all the parts splayed out across my driveway until I call a tow truck to take the Jeep to a shop.

Mad props for tackling a job that scares me too much to even try!

Great video man! It was enormously helpful as I had to swap out my heater core(and A/C evaporator). My blend doors went out a while ago and I used the Heatertreater kit for that. I'll be subscribing and checking out/comparing issues with the WJ. Thanks again!

Helluva One Handed Disassembly!!! Thanks for taking the Time!!!

Thanks so much for this video. I have to do a dash swap next weekend, feeling better about it now

Thanks for this video. This is the best guide I have seen for this job.

man I watch your video as I was pulling my dash apart an than I watch it backwards to put it all back together ........ worked for me thanks

Good video. I used the jeep heater fix for my blend doors, wayyyyy faster. I need to change my heater core now so this helps.

Craziest video I've seen yet.......this guy is good at turning a wrench! I would never tackle that repair because Id never get it back together!

Thanks for the locations of the "secret screws", big time-saver!

this is a great video, second to none.Thanks my friend

I think I'll practice on a few at the wrecking yard before trying this on my own. Very informative video.

Thanks for the great and very detailed video. You saved me a lot of time and I'm sure I would've broken some plastic without it.

Thanks again. Its working fine now, just last nite when i drove it home from my buddys were we worked on it, it started getting foggy. Thanks again! You rock

Holy SHIT! For a second there...I thought he was going to disassemble the entire jeep....

That was fantastic. I wish you were in my area in Pa. I'would rather pay you then a dealer. You handle yourself like a true professional. I have the same problem in my 04. Unfortunately I just bought this jeep with only 28000 miles on it and i have so many problems behind the dash. I may be annoyed, but still love my jeeps. All of them.

i found a video on KZfaq, used the info, completed the job with no experience and did it all in one day . this dude saved me$840 bucks, this Video is legit. i literally left the mechanics shop, googled "Jeep evaperotor coil replacement" looking for something official maybe from a dealers Web site and this vid. came up in the results, best decision i ever made thanks a million

Dude, you rock! Followed this with my iPad on the seat, LoL!! I found a brand new core on amazon for $8 that said damaged packaging. So for a grand total of $14 plus my time and your video I'm all set!! If you own a grand cherokee the steering has to come out people. It's attached to the stuff coming out....

Thank you for this video. I’ve been following along with you and so far you have been right about everything and it is going smoothly. Thank you!!!

THANK YOU! Excellent video. great camera work and very methodical

You make it look so easy bro! And after watching this video... It Was!

Great job on this video. You saved me a ton of time and money. Excellent example of American know how.

As a mechanic who does all repairs on all makes and models who has also worked in a jeep shop for 4 years I own a 02 overland wj and for the past 5 years have opted to not repair my blend air doors. Cold on driver hot on passenger but passenger still adjusted up and down for temperature. This winter I had enough of being cold and having iced air mid winter and bought the billet aluminum doors for my repair. Pulled my glove box and decided to watch the blend door actuator behind the glovebox and learned my motor had went bad. My doors were fine and I waited all those years for a 10 minute fix because I was dreading pulling the dash again. Now my heater core blew and my dash is half way out. Might as well install these doors even though I never needed them..

This was the best step by step so far... Thanks a mil

Thank you for the video! I followed your instructions and was able to successfully remove and reinstall my dash to replace the heater core, a/c evaporator, the passenger side blend door motor, the blower motor resistor (the new version doesn't over heat), some of the foam insulation (it was disintegrating), and even some light bulbs in the instrument cluster. I replaced the a/c compressor, drier/accumulator, and expansion valve at the same time since the refrigerant was evacuated, anyway. There were a couple of things that you disconnected in the video that did not need to be, but it doesn't hurt anything to do so, so I won't list them and confuse anyone. I didn't replace the blend door assembly as I had already installed the mutli-zone BlendDor fix that uses aluminum parts which will never break. I probably should have kept my original heater core. it wasn't leaking at all and I think the new one doesn't get as hot. The a/c evaporator was leaking though, and I never would have found that if I didn't do this. The tubes on the original a/c evaporator were wrapped in a sort of gummy tape, so I bought something similar from O'Reilly and wrapped my new one. The guy at the counter knew exactly what I was talking about when I mentioned it. It is called Four Seasons Climate Control Insulation tape. The roll costs $13 and is WAY more than you need. After I got it all back together, it seemed there was more noise coming through the firewall than before. When reinstalling, I noticed that the foam insert that went around the heater core tubes was kind a flimsy. So I ripped it out and sprayed foam into the hole. Not sure if that was a good idea, but it is quieter and probably more waterproof (in case I decide to take the Jeep swimming). Side note: Apparently, the design for the expansion valve changed a little in 2001+, so I had to order a different part number for the a/c evaporator. Regarding the comments below about a switch for the heater core - no, there is no switch to block the coolant from running through it. Hot coolant is always running through the heater core. The Blend Doors determine how much of that heat is blown through the vents.

what a great job you did with this video, very detailed, thank you so much it was very helpful.

Followed your video and I was able to complete the job. Thanks for posting.

Thank you for this video... It was really informative! Our 01 grand Cherokee needs a new heater core and we wanted to get an idea of the job involved!

Yes!!!!! Thank you!!!!! Doing this on Thursday. Hoping it goes smooth

Going to attempt this on my old 2001 grand cherokee that I handed down to my son last year. Been in the family since 05 and has been die hard since. Heater core recently gave out in 2020. Wish me luck!

Dude great how to video 👍 i just pulled the Dash on my 03 overland WJ

What a great how to video! Great job my dude. 👍

Thankyou for taking the time to video, very good detailed dismantle 👍

Thanks for the video; it helped me change the core in my '00 4.0 WJ.

Thanks you sooooooo much! This is a great awesome and helpful video it helped me greatly I wouldn't have been able to do it without your video! I have a 2000 jeep grand Cherokee. My heater core was leaking all over the passenger floor. THANKS TO YOU I now have Heat and A/c and it only cost me less than $100 for parts. So you basically saved me $700 bucks on the labor! Thanks again buddy!