I SUFFER FOR 3 YEARS AT WORK IN THE SUMMERS FOR NOT KNOWING WHAT TO DO. MY BOSS HAS THIS VIDEO. HE BETTER GET TO IT THX.

Great video, it's exactly what I needed to see. I've just pulled the HVAC box out of my 1993 Jeep Grand Cherokee 4.0L to fix the air doors, and I discovered that the heater core is just starting to leak. I live in a hot country, so I don't actually need it. It's now in the trash, and you've given me the information I need to run the bypass. Thanks guys!

Nicely done. Very clear and concise. I'm doing it on my 94 GMC Sonoma, but this solution is so simple, it's completely transferable. Thanks, Tim!

This bypass is exactly what I need to do. Thanks for posting it. I have a 98 GC that the Heater Core has failed and leaked coolant into the rear passenger floor board via the heater outlet there. I live in N Fl so not having heat will only be a minor inconvenience during the mild winters that we typically have. And because my commute to work is only a mile. Thanks for the tip.

Simple and clear explanation. Great how-to video, Tim!

Your disclaimer has me over here smiling. The video was really helpful. Thanks for the elbow idea.

This is going to get my much needed Grand Cherokee back on the road (and my wife off my back!) Thanks!

Outstanding work Sir.....I dont have a $500.00 bill to replace a heater core so this saved me tons and got me going...thank you!

If I had only known where to find those fittings here in Barbados, I would go with them too, but I had to make a u-fitting with copper pipe and elbows or 45degree elbows.I need to replace the vacuum valve and I had the hoses connected to heater core direct with out the valve, but it causes the engine to warm up a lot slower so I by-passed the core again and I started getting leaks so I just bought complete new hoses because the van is a 2001 so it needs new hoses.I hope my problem and yours are solved!!!

simply the best bypass I've seen; thank you very much man!

I don't know much about cars. But I can say this video helped me bypass my heater core in a 2004 silverado I've had since day one. It was simple to do and now my truck don't smell funny. Hope there is no long term side effects.. I want to own my truck 10 more years! Once again thanks for the great video.

What a Class guy doing a Class job. You can tell the parents did a great job.

Very informative and useful. Thank you Tim and BleepinJeep!

Very well done video. Thanks much. I'm applying this to a Ford Crown Vic. I gotta say my favorite part was probably your buddy running along with you on the test drive. Best 4 wheeling buddy ever, I bet.

Good job. Quick simple and right to the point.

My 29 year old 1993 heater core just went a few hrs ago. Engine overheated for 4 minutes while stuck at two lights. Turned engine off sitting at each. Antifreeze fog was gushing out of the top defog dash vents. Pulled over. Engine cooled down. Antifeeze dripping on the pavement below the fan/core unit luckily in front of the dash on the engine side of the firewall, not inside the dash. Googled symptoms, then realized it was the heater core. Suspected it was because smoke was in the cab & not the engine compartment. Never replaced one before. Know nothing about them. Called a mechanic and he told me I could bypass it with a U shaped hose. I'm in L.A. County by the beach, so I don't need a heater until December, at the earliest. If ever, as it doesn't get below 38°F here anymore. I'm so, so thankful there's DIY KZfaq videos on replacing the core on my make & model year. And which screws, bolts, hoses, and housings to move out of the way. Plus DIY heater core bypass videos like this one here, online. Need to bypass it because I can't afford a new core right now I didn't expect different sized hoses. More complicated than I thought, but still, simple and brilliant. O'Reilly, AutoZone, & NAPA are within a 2 mile walk of me. I even pulled over in the shade and have until next Monday to move for the street sweeper. I'm doing Vanlife traveling/living in this van, and loving it. Nothing ever breaks on this 1993 Dodge Ram B250. I love fixing automotive stuff, so finally, I have some work to do on the most reliable vehicle I've ever owned - a Dodge. (Tranny was rebuilt in 2016, still pristine). 194,000 on it. Barely any rust - a Tustin, CA van. All new mounts on it, now. Runs so smooth. Need to fill gallon jugs of water, to refill radiator & start my cooled down engine to keep my phone charged. Amost have top of core housing unit off. Might be impossible to get back left screw off of it. May need to remove the whole housing anyway (may have never been removed, and cleaned up before). Cleaned the leaf litter out of the front already. Stuff has dropped back behind it over the years and needs retrieval. Thanks a ton for this video! This is my first bypass job.

Thank you so much , I have a 94 Acura Vigor thats leaking antifreez into the drivers side floor and after all the money iv already spent id like to fix the issue myself and be able to drive my car again . i think i can after watching this . Again thank you so much .

Good and easy. Thanks for the video. I like your 2 door jeep. They are hard to find. I don't even have a Jeep yet, but I hope to find one before the price of them goes thru the roof.

Awesome video. Everything I need to know and to see. Thanks.

Thanks for the great video. Exactly what I needed for my 97 xj.

Very useful video as my core just kicked the bucket yesterday. Luckily there's only a month of winter left so I can hack it. Fix the actual heater core before next fall. Allows me to fix when my schedule allows and weather is decent.

Just finished doing the same thing, but with a 90 degree joint on a 2000 Chevy Silverado 2500, very versatile, works great for a temporary fix. I didnt have a compressor at my disposal, so i grabbed a hooka hose that i wasnt using, and pushed it into one end of the heater core, and blew into it and got most of the liquid out of the heater core. Thanks for the help Tim!!

Thank you Tim! Really good demo!

I just did mine on the land cruiser prado (Aussie model), I just disconnected from where the hoses go into the firewall and joined both with a 3/4 inch brass connector and used the original hose clamps.

Thank you, you saved me. I have a 2000 Explorer with 225K on it. Replacing the heater core costs nearly $1000, and doing it myself is beyond my abilities. I live in Southern Nevada, so I can live without a heater.

This video was really helpful! What did you use to plug your heater core? Is it really necessary, if you're planning on replacing the core, anyway?

Great video, I will use your technique on a Ford Taurus 99! Thanks for the know how!

Couple things, Why didnt you put the hose clamps over the hose before putting it together so you didnt have to unscrew the hose clamp all the way to put it on? Also, the heater core (just like the rest of the cooling system) is designed to withstand a max of 16psi, so if you are going to use an air compressor to flush out your heater core do not exceed 16psi or you risk blowing the seams of the heater core out. 8 to 10psi is more than enough to flush out a heater core

Thank you sir. I'll be doin this to my car I own the 2001 Honda Civic LX 5-Speed and the heater core is good as of for now due to leftover stop leak but because I recently did a cooling system flush no more stop leaks but stop leaks are useless for heater cores anyway so... but yes I have a leaking heater core.

that was a nice neat bypass good pointer on the clips

Super helpful . Thanks for making this vid.

Great job kid. I used to have a Jeep Cherokee 1991 back in the old days and I see a lot of similarities in that engine. I'm not missing it though. I prefer the Subaru's configuration with the oil filter right on top.

Thanks for the gr8 video...I'm going to this heater core bypass repair on my 2001 Chevy S10 PU

Just the video I was looking for. Great job and thanks!

I did something similar to my Ranger. Except I just unplugged the hose from the heater core and connected them there. Then I don't have to replace the hose when I eventually get to replacing the heater core.

Man, thank you for this video! I just changed my thermostat and coolant, and my car overheated on the road. I have since learned that the coolant system needs to be flushed, but I'm still unsure that my car won't overheat again. I believe bypassing the heater core should allow the coolant to operate at a cooler temperature(correct me if i'm wrong please). Your solution is simple and elegant. Being from Florida it's very rare we get so cold I need anything heater related. I'll just buy 2 spare hoses in case I need to resell the car or get rid of it. Thank you for this.

Wow I’m so glad I saw this. They bypassed the heater core in my neon. They didn’t used a u shaped hose. They used a hose and it was pinched. Now I’m wondering what to do about the next step. I hooked the hoses back up and I guess I’d better disconnect them again and use a u hose until I find out why they by passed it it the first place.

I'd recommend using some thick solid Nitrile Gloves when dealing with fluids. Thanks for the great tutorial.

You just saved me money on my rent thanks brother.....

Fantastic idea. Saved me $900.

Good temporary fix. I watch a video on replacing the heater core in my truck and what I think I would do is run the water hoses under the truck into the back seat and build a box with a heater core and fan in it. Could be done in an afternoon. Let alone tearing the dashboard out just to get to the core. I’ve replaced them in some older trucks and it was pretty easy. Let alone the new models of today. 😩

thank you!! hopefully I can adjust this to make it work on my datsun

Great video!!! Nice Jeep too...... new subscriber!!

SO far so good. Appreciate!!

I would have partially drained the cooling system first but handy video and am going to use your method as a temporary solution for my Jeep TJ heater core problem.

Where did you get the adapters and 180 degree bend? Great video

Great video.Does it have to be looped together? Or could you just remove the hoses completely, Then cap the ends. Thank you

Great tips, thank you!!!

Great video Bro!

thank u sir! hopefully i can do the same for my mitsubishi galant.

Dope jeep my boi. Good video!

I've 02 liberty.. didnt do the bypass with the 180 degree elbow hose to connect circulation, ,instead i did disconnect both hoses & caped both,, Question will work that way.. appreciate thanks..

Thank you sir. Beautiful dog too.

Good man - thanks for the share!

Where did you get the 180 degree hose?

Great video, thx! Where did you get the elbow and connectors?

Where did you purchase the elbow and adapters?

Hi, Run without heater core,the radiator reservoir level would be lower?engine need less coolant than before? After i modi that ,I filled same coolant level and run 30miles and stop the car some coolant leak from somewhere

Is this to fix the a/c? And do i need to take my thermostat out?

Can you guys make a video on replacing a clutch in an xj?

Hello thank you I have a question if the heater core the car may overheating?

I was told by bypassing the heater core my radiator would hold fluids again and presently I cant drive Ford Van over 30mph and must add fluids on each trip as otherwise it overheats.

Can I use garden hose connector will it do the work and handle the coolant??please reply.thanks

i just did this to my car by using the same connectors. I just could not find a U tubing so a longer one resolved. Any ideas on how to get some heat inside the car before travelling short distances 5km after leaving work?

Very usefull! Good job...

What kind of bumper is on this Jeep? I've been looking for one that would look good on my 99.

My car is a 2002 mercury grand marquis. If I do the bypass, does the air conditioning continue working? Does not the AC need the coolant for its operation? Thank you.

Can we see a walk around of Tim's jeep?

I know it's an old video and probably won't get a reply but I just bought a 99 wit very lil heat . Flushed the core (hose getting nice and hot to the core ) changed thermostat ,changed water pump ,changed thermostat housing and coolant the heat came on for about 20 minutes (hotter than before not by much ) I shut the Jeep off came back out later in the day and no heat again ! Just warm ! Any other idea ? Runs 188- 195 on my obd 2 scanner and doesn't over heat or anything.

do you not recommend using rubber cement on the couplings?

This video was useful to me.

imm greatful for the tutorial, but how about one on replacing the heater core insread? Thanks

Is there a reason why you didn't just pull off the small hose from the radiator versus cutting that one? I just pulled it off and saved myself from having to cut and buy another adapter piece. I still have that smell, and it still (somehow) has that slimmy shit on my windshield sometimes... i did blow it also.

Great video. Exactly what I was looking for. Did this affect the engine temperature in any way and did it improve your AC? Less heat in the cabin Thanks!

Plastic adapters will withstand 210+ degree coolant temps?

i smell coolant in my dash and have it behind of the carpet but the heater core seems to also leak outside the car somewhere and is dripping down and burning on my muffler. can something else cause this on the inside of my car?

Where can the hose adapters be purchased? Thanks.............

Great video. Thanks!

GREAT VIDEO THANKS

Very Clean! Question 1. Will a bad heater core cause over heating on the highway only? 2. Does this apply to a 1996 XJ ? Thank you in advance

ayy good looking out tim!! great video man it was very helpful. its only legit video on this topic. your the shit bro keep it up. #jeepgang

I like Tim a little better than the normal guy

Clean job

Outstanding video

Just take the hose of the output and hook it to the thermostat housing it's a tight squeeze but it fits (and it's FREE)

You should first flush the water inside the heat Core otherwise it will cause damage and rust on the long term 👍👍👍👍 Good job

Thanks a lot. Just saved me from removing my dash.

Also as I read below it IS illegal to disconnect the heater core. All cars are registered in the state of CA must have an operating defroster to keep the windshield fog free in the winter. How will the cops know? It's real easy to tell because someone is constantly wiping the windshield so they can see out. Obviously it's easy to get away with it during warmer weather. Plus many people don't know this fact: in other states they have safety inspections your car must pass before it can be registered. We don't have that here in CA so, the CHP has the authority to pull ANY CAR OVER AT ANY TIME TO DO A SAFETY INSPECTION. But they are generally too busy to do this.

Should've had the hose clamps on the elbow ready to install when you finished the loop. Otherwise you have to open the clamps entirely and that's a pain that can be avoided

Did you have to bleed the air out. Or just remove radiator cap?

+Bleepingjeep how long can your jeep last like that. Like let's say you order the part and it will take 2 weeks to arrive, will this hold for 2 or more weeks or maybe months or is it just for a few hours?

So you didn't need to bleed the system after the bypass?

Great video, from an old gandydancer (railroad builder and mechanic). Two thoughts.... Put the new hose clamps on before assembly. And get some damn disposable gloves!

And witch hoses. Do I put together

I have 1991 525 bmw why does it have 3 hoses going into the fire wall .i want to bypass be heater core

Great tutorial

I can do that to my 98 Malibu but it's coming the winter and I prefer to dig in the instrument panel to replace the heater core.

Thank you! 👍👍

antifreez is leaking in the passenger side after I dissconectec the hose what to do

Can someone tell me which is the inlet heater core hose ?