DIY How to repair 2009 GMC Yukon Heater Hose & Tee Connector Chevy / GM

This is a DIY video on how to repair the heater hose and replace the auxiliary heater inlet hose tee connector on my wife 2009 GMC Yukon SLT 2wd 5.3l Flex. The heater hose fitting was completely broken and leaking coolant. We also chose to replace the tee connector while performing the repair. It was an inexpensive part and could have been brittle lithe the hose connector.
Genuine GM Parts Used in Repair:
Auxiliary heater inlet hose tee connector GM# 15055342
Heater Hose GM#22885825

[@dasanix120362]

Thank for the vid! glad its still up after 6 yrs! Did it myself! replaced both connectors! cost me 25 each at the auto parts store! Mechanics had quoted me between 500-550 for them to replace!! sheeeeeesh i aint paying that took me 50 bucks and about an hr of work to get it done! haha! saved myself soooooo much money! thanks again!

[@MattFreytag]

This is great to hear. Glad you found the video!

[@ricomoreno6479]

Appreciate the help. This happened to me yesterday and I followed your video exactly. I wasn’t as quick as Jay, but everything is back in working order. Those clips suck!

[@MattFreytag]

Sorry to hear you had a breakdown but i so glad the video helped. Thanks for watching.

[@tessawastell1720]

This just happened to me about ten minutes ago! Same location, same hose. It just snapped, I have a 2009, same model. Thanks for your video, gonna give this a go and try to repair this myself. Much appreciated from California!

[@MattFreytag]

Tessa Wastell awesome we were able to help. Thanks for watching the video.

[@Savager805]

Looked up this video and it came clutch with taking everything off without breaking the clips .. EASY FIX. No more than an hour job ! Chopped off the crimped hose and slipped it back into the fitting and clamped it down.. THANK YOI BROTHA 🙏🏼

[@MattFreytag]

Savager805 glad we could help

[@user-ev4pb9xj7e]

Yeah, it will leak.

[@bruce-bruce7975]

Our 2012 just did that yesterday. Identical to your break. It's a crying shame. Thank you for the video!

[@MattFreytag]

Bruce Bruce Burcie Hope my video helps you out on the fix. That sucks they break so easy.

[@oneidaherrera6]

Oh my goodness, mine just went out today. And Thanks to you and your brother in law for giving me hope. I think I can fix this on my own. Much love from Houston 🤗

[@MattFreytag]

Oneida Herrera that’s great to hear. Wish you the best of luck.

[@nickaguirre7732]

Thanks for the video. same thing happened to my wife 2012, the same heater holes

[@MattFreytag]

That sucks. Hope you get it fixed quick.

[@MSNet1]

Thanks gentlemen for KZbin demo. Didn't turn out to be a CF. Things actually went smoother than anticipated.

[@MattFreytag]

Awesome 👏 Thanks. Glad we were able to help!

[@MattFreytag]

Awesome glad the video helped. Thanks

[@TheDudeMyDude]

I've been trying to remove the front and didn't know that it's a T piece.. thanks for the video!

[@MattFreytag]

Awesome. Glad you found it. Thanks for the view.

[@ducatiparts966]

Thank you for making this video. It probably saved me an hour by telling me to cut that one fitting. I was an hour into trying to get those off without breaking stuff. Thanks again.

[@MattFreytag]

Your welcome. I’m so glad we were able to help. I’m glad we figured it out too. Thanks for the view and the comment.

[@bendeets5082]

Just happened to mine on a 2008 Yukon Denali today. Thanks for the video; looking at getting it fixed today.

[@MattFreytag]

That sucks that it broke but at least the video help you out quickly with a solution. thanks for watching

[@drrydog]

$600 - $850 quotes.. but just $75 in parts. yea dude!!! do NOT pay the shop to do this.. yes, it sucks to unclip the T, but stick with it, and focus on this "wiggle the T a lot- really get up on the motor with your body, to get good leverage, and feel for those clips, definitely do what he did in the video to cut the one part of the T, just use dykes, or vice grips (I used vice grips, locked on, turned, and snapped the plastic - easy)

[@FirstLast-we8cb]

My 2008 Yukon Denali just has this very same failure at 165k miles. Thankfully a block from my house. I still lost 2 gallons of coolant. Had I known this was common I'd have replaced these parts ages ago.

[@jessicahanson5419]

Many thanks, my man used this vid to do exact repair on his 2007 Chevy Tahoe, bless you guys!

[@MattFreytag]

Jessica Hanson we are so glad you had success. These are the comments and stories I like to hear. Thank You

[@howardsmith9342]

My 2012 Tahoe did the exact same thing this afternoon. Looks like an easy fix, if I can find the right part within walking distance!

[@MattFreytag]

Good luck on finding the part. Hope the video helps you. Thanks for commenting.

[@tltsw]

I just replaced my heater core in my 2011 GMC 1500 Dinali. I work at a dealership and have been for 26yrs. It took me about 5 hours to do. To add to this video lining a thin coat of antifreeze to the rubber oring inside the new hose will allow you to slide the hose on without force. I’ve seen techs break a heater core doing what this guy did by applying to much force to install the new hose. FYI a heater core is not a DYI unless you have a A/C machine and a tech2 or laptop.

[@MattFreytag]

tlt40s&w 70 Thanks for the tip! Not sure if you actually watched the video or not but I can’t find the part where we applied to much force sliding the hose on. It basically just slide back into place by slightly pushing it on the same as any tech in a professional shop would do. Any car fix can be diy with the proper knowledge and tools. Let us know if you need any help on any other repairs. Thanks.

[@volunteergarage6005]

Why do you need a laptop or a tech2 to do a heater core??? I replace at least one a week for a major used car lot and never need those to replace them with!!!! And I never used any force with the quick disconnect heater core hose bc it just snaps in place...

[@antoniomurray9987]

I wanna thanks you guys for this helpful video cause did what y’all said and fix my wife truck!!!! Appreciate you guys

[@MattFreytag]

Antonio Murray That’s awesome 👏. I like to hear stories like this. Glad we could help you save money by doing it yourself. I will be making a video soon on how to replace the exterior door handle. Thanks.

[@Guitarfollower22]

Thanks for the video! Straight-forward, short video, supplied the part numbers, etc.

[@MattFreytag]

Guitarfollower22 Glad we could help. Thanks for watching the video and the comment!

[@limited50scla]

Awesome. My sisters 2007 Tahoe LTZ, t broke off yesterday while she was on the freeway. She drove it home. ( I wouldn’t) let see how healthy she it later on today 🤞🏻🤞🏻🤞🏻☘️

[@MattFreytag]

Wow. Hopefully it didn’t leak all the coolant out and overheat or burn up the water pump. Good luck on getting it fixed. Hope this video helps you out. Thanks for watching.

[@francispotter5300]

Mine broke thur GMC should do recall my is a 2007 Yukon SLT have same problem, Doug GA thanks for your video

[@47114]

Just had this fixed on my 2011 Tahoe. Wish I would've seen this first. Needed the car ASAP so the first mechanic that could do it, did it. Small coolant puddles in the garage and a bit of smoke/steam coming out from under the hood at stop lights.He Diagnosed problem via pressure test. Replaced the "T" connector and all hoses for $300. Decent deal I reckon, but DIY for probably $100

[@MattFreytag]

@Jarod Marquis Awe Man! That sucks. Wish you would have seen this video first but $300 is not bad since you needed it fixed quick. I would say these parts were right under the $100 mark since I did buy the OEM GM parts from the local dealership. Thanks for watching the video and commenting. I really appreciate it. Glad you got your car fixed quickly.

[@ladalierabon]

50 for everything 🤦🤦🤦

[@davieboy1970]

Just happened to my buddies 2008 GMC Yukon about a half an hour ago. Left it in the pizza hut parking lot and I’ll get it fixed tomorrow.

[@MattFreytag]

Hope you were able to get it fixed. Thanks for watching the video and i hope it helped you!

[@davidandrew6347]

Hey Matt just saw this video. Very nice. Got some good likes and views. Kellie bear is so sweet always very nice to me when I see her. Keep it up guys.

[@davidandrew6347]

P.s. Matt you remember I said that my truck broke? If we could find enough spare parts could we (yal) actually build me a truck from scratch? I don't know if that's possible but I bet you guys whip me somethin out. I would pay. Thnks man holler at me.

[@MattFreytag]

I’m sure me and Jay could make something. Not sure if it would be pretty.

[@davidandrew6347]

@@MattFreytag lollol

[@jessicavalenzuela4776]

Thank you so very much! Ours just went out today and this will save us some $$ for sure 😁 great job!👍

[@MattFreytag]

Jessica Valenzuela glad we could help!

[@ericgovea4210]

Much love from Racine wi my just popped :(

[@jasonmaddox8913]

I had that exact hose in the same spot pop off while driving on the toll road in Orlando, talk about a crappy day

[@MattFreytag]

Jason Maddox Dude. That has to be one of the worst places to break down. I feel your pain. Luckily my wife was on her was home when this one broke. Hope you get it fixed soon. Thanks for the view.

[@charlesosborn5880]

Thanks for posting this it was a big help, especially the part numbers! Happy Holidays!

[@MattFreytag]

Charles Osborn Awesome! So glad we could help. These are the comments I love to read. Happy holidays to you as well.

[@michaelnicoletti8926]

@@MattFreytag 97-01

[@MarioRamirez-cy6hh]

Grasias amigo me BA a ayudar tu video

[@kimkirby206]

Great video

[@MattFreytag]

Thanks ☺️

[@MattFreytag]

Thanks to Jay Cooke at Volunteer Garage this video came out great!

[@efrencruz9230]

p0332

[@kennyman338]

When bleeding the cooling system do put the air recirculation on or leave it off.

[@volunteergarage6005]

Leave it off and turn the heat up and on high..

[@jhardman8355]

Great tutorial for a rookie like myself. Is it common for the reservoir tank to go completely empty when this problem occurs? Thanks

[@MattFreytag]

Thanks for watching. Im not really sure. Its be a while since this happened and i can’t hardly remember.

[@JerbDolla]

Great video... 🤙🏾🤙🏾

[@MattFreytag]

Thanks for watching and commenting. Hope you got something positive out of it.

[@blakegearin260]

Thank you

[@MattFreytag]

Glad I could help you with the video. Thanks for watching.

[@robm3044]

Not sure how you got the metal tube off that tee at all. You broke the tabs but did you bend that tube? It’s impossible to get the tee off with the metal tube still inserted because you can’t spin it.

[@MattFreytag]

I’m not sure. It just popped right off once the clip was removed.

[@jordancarr8985]

Thank you this helped!

[@MattFreytag]

Great to hear. Hope you got it fixed. Thanks for watching.

[@diversity2739]

thanks good stuff!

[@MattFreytag]

diversity2 thank you for the view and the comment.

[@diversity2739]

@@MattFreytag Welcome

[@tessawastell1720]

How did Jay get the fat side of the tee-connector off the firewall?? I was able to get 2/3 of the ends off, but cannot get the firewall side of the connector off.

[@MattFreytag]

Check the video around the 1:30 mark. We had to cut it so it would come off the line to the left then he spun it so he could get his fingers on the clips to release it. Hope this helps

[@vincentrios569]

What happens if you still have leaking at the fire wall connection of where the T connects?

[@MattFreytag]

Not sure on that one.

[@red6423]

Thanks

[@MattFreytag]

Your welcome 🤗

[@brucelynn3831]

Great video Matt, it looks like it was taken under the hood of my 2008 Yukon. I'm sure there are plenty of complaints to GM about this issue. I wonder if they are saying "There appears to be a pattern here".

[@MattFreytag]

I doubt they would submit to a recall. They don’t wanna give out that money.

[@jewllake]

I replaced those on my 06 Yukon. It had 125K miles and figured I'd do preventive maintenance as I drive through Indio and Phoenix when it is over 110* I also replaced the heater hoses. I ended up having to get a hex saw blade and cutting off the plastic t part in order to slip it off the heater core. I could not slip it off the auxiliary hoses even after cutting off the tabs. Stupid design. My chest was sunken in and hurt for the next week after leaning over the dam fender for so long.

[@MattFreytag]

Yes these repairs are a pain sometimes. Thanks for watching the video and for the comments. I love it.

[@houstontxwill629]

Thank you sir.

[@MattFreytag]

You're very welcome

[@MrNawfdallas214]

My heater hose broke same way but i replaced the hose and the connector only not the tee fitting only thing is mine didnt click when i pushed it in the tee fitting i kept pulling n pushing it to see if it clicks but nothing but when i pull it wont let go should it be fine?

[@MattFreytag]

MrNawfdallas214 thanks for watching the video. Hope it helped out. I really can’t say if that would be ok or not. Sounds like it’s fine if it hold and has not leaked under pressure. Sorry I don’t have a better answer.

[@MrNawfdallas214]

TN Corals its cool i been checking on it every day its doing fine so far great video helped alot👍🏽

[@MattFreytag]

That’s awesome. I’m glad you got it fixed and I could help.

[@marcsmith3881]

I spent an hour trying to get those Ts off. They wouldn't release at all and I had to cut them out.

[@MattFreytag]

That’s not good. !

[@brazybrolytv6265]

So I can just connect the hose to the T Or do i need to put the other adapter on the T and then connect the hose

[@MattFreytag]

Connect to the Tee

[@davidortega2407]

much appreciated!

[@MattFreytag]

David Ortega I’m glad my video was able to help you out. Thanks for the comment and for watching my video.

[@FOLLOWMYOTHERPAGEHUTIMAC]

Will this cause my 08 escalade to overheat fast or will i need a waterpump also ?

[@MattFreytag]

stank618 Music Thanks for the comment and for watching the video. If I am understanding you correctly no replacing the heater hose will not affect the water pump.

[@FOLLOWMYOTHERPAGEHUTIMAC]

Ok i thought the hose broke csuse of the water pump or thermostat went out

[@MattFreytag]

No. It just broke for no reason.

[@mobstyle7873]

i have a 2011 suburban is it the same part whats the part number

[@MattFreytag]

GMoney I would think that it is the same part numbers, but to be sure you should cross reference by calling a GM dealership and speak with the parts department. That is where I bought the parts I used. Part numbers are located in the video and in the description. Thanks for watching and commenting.

[@juanbarron3436]

Can I still drive it to the local auto parts store that is 3 miles away? The hose is also ripped as in the video.

[@MattFreytag]

Chito Puff I really can’t answer that question. I didn’t drive my wife’s so I’m not sure if it would overheat or not. I would not recommend driving it.

[@louiville3091]

My homie DWIGHT SHRUTE FROM DUNDER MIFFLIN

[@MattFreytag]

Atswhatisay

[@johnh6791]

Sorry about that posting on mobile sucks...

[@drrydog]

Every 2007-2010 I own had the T break right there! lmao... and btw.. you need to pretty much sit up on top of the engine area on a towel, or w/e to reach this. worst spot ever... for a cheap "easy-fail plastic part"

[@MattFreytag]

Yeah man I agree. My brother in law is tall and has done this before so it was a bit easier for him to do. Thanks for watching and commenting.

[@falseprophet4223]

Mine went out Christmas night with no parts stores open and no way to fix it. If I wasn’t maybe two minutes from my house I would have been screwed

[@MattFreytag]

Falseprophet42 Awe dude that totally sucks! It’s a pretty dangerous break for the car. Luckily my wife’s broke and she noticed steam as she was pulling into the driveway. Could have been worse. Good luck on the fix and hopefully the video helped.

[@joshuaamerson2365]

It's Sunday here and all the Chevy dealerships and garages are closed would I be able to replace the tee with a tee from drip hose or a piece of CPVC?

[@MattFreytag]

Joshua Amerson I probably would not recommend that for a permanent fix! If I am understanding correctly You would have to connect some kind of barbed tee to the fitting on the firewall, the fitting that goes to the rear heat, and to the water pump housing. That would be 3 separate hoses and 6 total hose clamps. For an emergency this could possibly work temporarily but would take longer for the repair and possibly harder to find the proper parts. Hope this helps you and thanks for watching my video!

[@joshuaamerson2365]

I just talked to Advanced and they got me a t connector for $5. I just wasn't being patient enough. Thank you and your stepbrother for the video and response!

[@joshuaamerson2365]

Now thermostat is stuck, mabe from melted tee?

[@MattFreytag]

Aww man that sucks.

[@jewllake]

if it is a Doorman part get ready to change it soon! Only use the genuine GM ones.

[@johnh6791]

Kick ass video thanks,

[@MattFreytag]

Awesome, Thanks for watching! Hope it helped.

[@johnh6791]

Absolutely mine broke trying to replace spark plugs and I freaked out. Your mechanic friend there awesome. You guys good people.

[@johnh6791]

Absolutely mine broke trying to replace spark plugs and I freaked out. Your mechanic friend there awesome. You guys good people.

[@johnh6791]

Absolutely mine broke trying to replace spark plugs and I freaked out. Your mechanic friend there awesome. You guys good people.

[@johnh6791]

Absolutely mine broke trying to replace spark plugs and I freaked out. Your mechanic friend there awesome. You guys good people.

[@4818bennyboy]

What's the hose part called i went to all the auto part stores and they say they don't have it?

[@MattFreytag]

Benny martinez You will probably have to purchase this hose at your local GM dealership. The name and the part number is in the description of the video. I bought these at the parts department of my GM dealership.

[@jimmyjames1474]

@@MattFreytag Is the coupler t fitting on the other line the same part number? I broke mine today by accident.

[@MattFreytag]

@@jimmyjames1474 I am sorry but I don’t know the answer to that. You will have to find out from the dealer. Sorry.

[@RonierSmith]

This same thing happened to me

[@MattFreytag]

Dang that sucks. I hope this video helps you to fix it. Thanks for watching. Good luck.

[@joeantonelli147]

Can you tell me what happened when this broke? My wife was driving our 2009 Yukon and it started smoking and a ton of lights on dash lite up. Then the power diminished, the car shut off. I had it towed to my mechanic he is charging me $600 to replace the heater hose!%#^!

[@MattFreytag]

joeantonelli147 basically there was just a bunch of steam coming from under the hood. When I checked it out it was leaking antifreeze from the connector that was broke. That’s about it!

[@joeantonelli147]

Thanks. Maybe she pushed it too far and it over heated. Maybe I have something else going on. It just happened yesterday and mechanic called me this morning with the initial estimate and prognosis. Thanks for the quick reply and great video.

[@joeantonelli147]

In my wife's defense she was on 95 heavy speeding traffic on her way to the airport. I had her pull off asap, take an Uber to her flight and I had it towed from a random parking lot.

[@xaviergalvan5166]

Exact thing happened to my wife today. This videos makes it seem like an easy fix. Any update on your wife’s vehicle?

[@handyrams4664]

What happened? It just popped off?

[@MattFreytag]

Handy Rams The T fitting Broke.

[@handyrams4664]

@@MattFreytag I'm having problems with a small leak somewhere. I can't figure out where it is but I think this may be it and it's dripping onto my header and evaporating.

[@MattFreytag]

Sorry to hear that. Good luck. Hope my video helped

[@bbbiesemeyer1]

This is so dumb this is the 4th time I’ve replaced the same one on my girls car now I gota do the 1 next to it that goes to the water pump an the overflow tank. For any of you out there that’s doing the same replace all of it while your in there cuz if you replace 1 give it 6 months and you’ll be replacing the other hose and it’s a lot easier to do them both at the same time.

[@MattFreytag]

That sucks. We didn’t have anymore problems out of ours luckily. That’s what you get from GM Junk! Thanks for watching.

[@albertovasquez6236]

This would be really helpful for me i have the same problem on my wife’s 2008 GMC yukon Denali same identical, hoes, my biggest problem,how !remove from clip’s

[@1988tfred]

I must be doing something wrong..mine needs a special tool

[@MattFreytag]

Just hands.

[@kevinkelly1157]

How the hell did his come off so easy? I'm having to use a steak knife and a cigarette lighter 😠

[@MattFreytag]

Kevin Kelly it is a challenge. You have to turn it where you can squeeze both the tabs on the quick connect.

[@antoniozx1nonly611]

Those tabs on rear are a pita!!!!

[@MattFreytag]

You are right. I can think of many other words to describe it as well.

[@mr.cleanone3900]

Couldn’t remove heater hose clips Hust broke it and jimmy rigged it with a clamp.

[@MattFreytag]

Mr. clean One Dang. Hope it works for you

[@robertospindola6849]

30 to 40,000 cars and we pay for junk.

[@MattFreytag]

For real. Awesome comment. Thanks for watching

[@BringBackMasculinity1987]

2013 Yukon XL Denali not even 10 years old and camshaft went to shit on me already. So yea! Surely agree. Pure junk. I miss my 99 tahoe

[@MattFreytag]

We actually had this engine rebuilt at around 30k by the dealership under warranty. It was using quite a bit of oil. Even though GM May deny it I would say the main reason for this is there Active Fuel Management system.

[@BringBackMasculinity1987]

@@MattFreytag Yessiirr! Thats exactly what caused the problem.

[@MattFreytag]

Now that it is out of warranty we are going to get a custom tune for it that will disable the active fuel management. I hate it anyways. When you wanna press the gas and go it is so sluggish such as passing on the interstate. Hopefully the new tune will unleash some more power from the 5.3

[@Kevin-wy8kc]

You dont understand how clickbait works you need an "enticing" thumbnail to fool us.

[@MattFreytag]

Kevin thanks for the comment bro.

[@fabianmendez8437]

Napa auto parts carrys a nice aftermarket hose, better than oem. Instead of a crimped end it's a simple squeeze clamp and female quic hose connect check it out www.napaonline.com/en/p/NDP82760481?partTypeName=Heater+Hose&keywordInput=heater+hose+with+quic+connect also the connector www.napaonline.com/en/p/NDP7305659?partTypeName=Heater+Hose+Connector&keywordInput=heater+core+connectora

[@MattFreytag]

Fabian Mendez Thanks for the info! I will check it out!

[@tylerangieslayton7455]

The proper cheaper easier way is to take a 5/8 brass tee and 2 small lengths of hose and one long and 5 twist on clamps and bam fixed the right way permanently

[@MattFreytag]

This is not how I would recommend doing the fix. The male ends on the quick connect are not designed to be used with an aftermarket hose and hose clamps.

[@bayoucat2924]

Matt Freytag he has no gm dealership around or even worse one auto zone. He cannot afford the price to ship it. This is shit he had lying around the barn. 😂 😂 zip tie ✅ butter knife ✅ duct tape✅........