How To Bypass A Heater Core - Silverado - Sierra

How To Bypass A Heater Core - Silverado - Sierra - All Vehicles

Рет қаралды 111,328

5 жыл бұрын

I ended up using the 3/4 bypass
Bypass hose
amzn.to/46W2pSx
If you would like to leave a donation here is a link ...
www.paypal.com/cgi-bin/webscr... In this video I will show you how to bypass a your vehicles heater core. This may be used sometimes for a quick fix if your heater core is leaking onto your floorboard.
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Disclaimer:
Due to factors beyond the control of Falcons Garage, I cannot guarantee against improper use or unauthorized modifications of this information. Falcons Garage assumes no liability for property damage or injury incurred as a result of any of the information contained in my video. Use this information at your own risk. Falcons Garage recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Falcons Garage, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Falcons Garage
#dyi #bypass #heatercore

Пікірлер: 147

@cameronmccullough4486 11 ай бұрын

Finally someone to get straight to it, simple instructions, simple fix, you're appreciated 👍

@TheGodoychannel 2 жыл бұрын

The heater core just broke on my truck and now I'm watching your video to fix it roadside (safe spot). Thanks man you saved me a tow truck fee!

@FalconsGarage 2 жыл бұрын

Glad I could help

@ColdWarAviator Жыл бұрын

Thank you so much for posting this video! I have an issue with my 2004 Chevy Silverado, the actuators that are under the dashboard and blend the heat and cool are stuck in the heat position! And it is summer time in Tennessee and so even when I turn on the air conditioner it comes out hot air. :-( so now I watch your video and I am going to bypass my heater core that way I can have good cold air conditioner and I don't have to take out the whole dashboard just to try to replace the actuators for the climate controls. Your video is very good! You get right to the point, you show exactly where the hoses connect on the firewall, and you show the user what type of connector to use join the two hoses back together.. the inlet line and the return line. Thank you again! One day I hope to come back down to Texas soon. I used to drive down to Laredo all the time and go visit Nuevo Laredo. My girlfriend used to live in Monterey and she actually got married on the international bridge in Laredo. LOL LOL

@mrbigg7255 4 жыл бұрын

Great video. Did the same thing when I was younger on my ‘76 Impala. Replaced all the hoses and radiator including these cheapo connectors on my dad’s gmc 2 years ago. One just failed again yesterday. Gonna replace them and buy one of them hose connector sets that you used and put it in the glove box. That way we won’t be stranded.

@mccoybyz1099 3 жыл бұрын

Wow, this was awesome and it really helped me out not to mention it worked perfectly!! So I wanted to let you know it was a life saver and I appreciate you taking the time to make this video because I didn't think I had any other option other than replace my heater core. Thanks again brother!! 👌😁

@FalconsGarage 3 жыл бұрын

Fantastic!

@christophersewell919 3 жыл бұрын

Thank you very much sir, I literally just did this, and I’m so thankful. Have a blessed day.

@FalconsGarage 3 жыл бұрын

Excellent!

@nickrichmond277 2 жыл бұрын

The exact video i needed to see and hear.. Thanks

@losnutzz7132 9 ай бұрын

Much appreciate it! Definitely helped me out. Massive leak at the heater core. But this was a quick fix , with your video. Thank you very much..

@FalconsGarage 9 ай бұрын

Glad it helped

@levis8pack 2 жыл бұрын

I smell coolant in the cab of my 02 silverado 4.3 v6. I think I'm going to do the bypass because like you said I won't need heat for a few more months. Thanks for this video!

@2Jeezuzisreal 2 жыл бұрын

Get a 12volt heater

@eriksatterfield4755 Жыл бұрын

Man I am so glad I found your video sir thank you soo much you helped me

@derrickmull4894 3 жыл бұрын

Thanks for the video. I did this on a Trailblazer, yes it works. Then i purchase a 12 volt car heater, mount it on the dash so heat can flow towards windshield to defrost or defog my windows when needed.

@BankstonT 5 ай бұрын

I Heard those 12V heaters don't work too well

@anthonyalegria7096 5 жыл бұрын

Thanks man, good video. This is exactly what I needed to know for my Avalanche.

@TyHudson42 2 жыл бұрын

Very helpful😎🖖

@nakedmongoose123 2 жыл бұрын

Someone just stuck an inline valve on one of my heater core hoses and set it to closed. Is my coolant circulating the system properly?

@MrCliffda3rd 4 жыл бұрын

Might do this on my 2010 Cobalt. It's summer year round in FL.

@nsf-temper4345 4 жыл бұрын

Very informative compa gracias...

@FalconsGarage 4 жыл бұрын

De nada

@jamesbaucom9295 3 жыл бұрын

Had to do this to my Dakota. Tried to replace the heater core but those dodge bastards hid a heater box bolt in the firewall BEHIND the damn engine and I’m sick of fucking with it. I appreciate the vid

@th3tok3nblackguy 2 жыл бұрын

Thank you! About to do this now. My windshield just fogged up out of nowhere and I about had a head on collision.

@FalconsGarage 2 жыл бұрын

Good luck!

@MKGGs Жыл бұрын

This comment alone just helped me diagnose my coolant leak cause the same thing happened to me. Thank you!!

@dirtdeneros 11 ай бұрын

Yes!!! My window just fogged up

@nickthompson2553 4 жыл бұрын

Thank you

@i-ali8645 4 жыл бұрын

Thanks for the video, does the cooling fan needs to be reprogramming because of changing the cooling process

@FalconsGarage 4 жыл бұрын

@FrostyGorillaYT Жыл бұрын

Does this work on Cadillac escalad

@jeffro221 4 ай бұрын

Great idea to carry the couplings in case a leak happens on the road. Did you use the 5/8 or the 3/4 coupling to do the bypass?

@hugomendez2998 Жыл бұрын

Can a pec coupling 3/4 for my Chevy ? 2007 2500hd

@c.p.frazier9939 2 жыл бұрын

I would like to install an external heater core on my 2001 chevy Tahoe where would be a good place to drill holes for the hoses to go through

@FalconsGarage 2 жыл бұрын

external? never heard of it .. don't see how that would work

@GJJC13 3 күн бұрын

Great video, ... sao will you still hace cool AC?

@ryderinblack 2 жыл бұрын

So yeah I do need my A/C in summer I will need to do this, but does this have to be done every end of Spring and reversed in time for Winter? I have harsh winters and this nearly cost me my life in -35C

@FalconsGarage 2 жыл бұрын

I guess my question is why do you need to do this at all? Does your heater core leak?

@2Jeezuzisreal 2 жыл бұрын

I'm going to do this and buy a Ebay 12volt heater. Chev made a massive mess of Tearing the dash apart. There engineers are on crack. I have had great success with Alumaseal stop leak. Fixed many leaks and water pumps. Also reverses the heater hoses will back flush the core.

@christopherhendricks4369 Жыл бұрын

Yep. It's freaking ridiculous

@Fernando-nm1ye 2 жыл бұрын

So if im doing this permanently i have to put a metal bypass?

@steven6692 4 жыл бұрын

Does it have to be bypass...or pluguing the outlet/inlet on the engine side will do the same...i got rid of the bubbles but the temp. Still creeps up...

@FalconsGarage 4 жыл бұрын

don't plug them .. bypass them ... like on the video .. sounds like you have other issues

@miami305trini 2 жыл бұрын

What do you do if you have a vacuum hose can I close it off or does it have to go to a vaccum after bypassing the heater core

@FalconsGarage Жыл бұрын

were does that vacuum hose come from? you might want to find out were it goes and reconnect it

@Junior-ko6gg 5 ай бұрын

I can hear air in my heating core. It happened right after we had below freezing temperatures here in Missouri. I wonder if my core is not good. Not heating or any oil in my coolant.

@FalconsGarage 5 ай бұрын

sounds like you have a coolant leak somewhere or an air pocket

@Junior-ko6gg 5 ай бұрын

@@FalconsGarage I can see any visible cooling leaking. I try purging the air out today. I had my truck on the ramps trying to purge the air with the coolant cap off for almost an hour. No over heating or coolant over flowing. But I can still heard the noise in my dash.

@melissajulita8024 4 жыл бұрын

Great video, thanks!! Can this bypass end up causing problems to a truck? Is it really necessary to replace the heating core in the long run?

@FalconsGarage 3 жыл бұрын

problems not really ... but yes you will need to fix it eventually if you want your heater to work again

@j.m.5995 2 жыл бұрын

As long as the coolant circuit keeps flowing it should not be an issue as you're simply "bypassing" a leaking or broken heater core. If you cap or block off the circuit on both ends you may possibly experience overheating in that section of the coolant circuit because the hot coolant may simply sit there constantly collecting heat instead of circulating completely thru to the radiator

@johndevenny1736 4 жыл бұрын

Will by passing the heater core stop the smell coming out when I turn on the ac?

@FalconsGarage 3 жыл бұрын

yes .. but its a temporary fix .. most likely the smell is coolant leaking on the heater core

@rezzinbrainz 3 жыл бұрын

Nice video...any recommendations for a 2003 Mazda protege5 heater hose replacement...it looks super tough to access... thanks.

@FalconsGarage 3 жыл бұрын

I would recommend making your self room .. meaning .. if you have to remove other things to get a better look or access do it.

@rezzinbrainz 3 жыл бұрын

@@FalconsGarage thank you but it seems like a lot has to come out just to access the hose...

@adammatthews1249 2 жыл бұрын

Going too do that today I got 2 months before it starts getting cold my plastic clip that hooks the house too heater core is leaking what said was that plastic adapter u hooked the hoses together with?

@FalconsGarage 2 жыл бұрын

hose clips

@gmcsierraz7173 2 жыл бұрын

Does your ac blow cold as usual with this bypass ? Or is it better to not use your ac ?

@FalconsGarage Жыл бұрын

this bypass wont effect your AC ... so if your ac was working before this wont effect it

@pimetime2859 2 жыл бұрын

what size bypass did you use the 3/4 or 5/8?

@FalconsGarage 2 жыл бұрын

3/4

@frannybruhh4882 6 ай бұрын

I did this but mine has two ac aluminum lines that connect to the firewall in and out

@aceseightsazhvacsparkyandg8138 4 жыл бұрын

I had to do this today in work parking lot. I use a brass fitting . We don't need heat here in Arizona

@shawn1472 3 жыл бұрын

Im in Phoenix lol

@TourettesMobileMechanic 2 жыл бұрын

Why not cut a hole through the passenger firewall. 😆. I have done it. Takes some practice. In summer. I would do the same. Magic 3 minute fix. Until inspection or winter. Nice video and thank you I like to reference. I work on a lot of vehicles as yourself and it helps to have a over view to price a customer. Thanks again and keep up the good stuff. I get you a lot when I search I finally hit that bell for you and liked.

@FalconsGarage 2 жыл бұрын

Thanks. I would never make a hole anywhere on the car that wasn’t there before 🤷‍♂️🤷‍♂️

@nicholasjones5904 Жыл бұрын

Can the heater core be relocated

@dustinlazo9833 2 жыл бұрын

What size adapter did you end up using???

@FalconsGarage 2 жыл бұрын

3/4

@crazedpaul9836 3 жыл бұрын

My wife's has a 2004 suburban 5.3 i want to bypass hers my 1999 Silverado i did just like the one in this video... her Suburban has 2 T's at the fire wall what do they go to a module of some kind and do they need to be capped off????Any help would be Appreciated.

@crazedpaul9836 3 жыл бұрын

Can i just put an elbow at down at the water pump connecting the in and out? and cap the hoses off? if it was my truck i would just do it... But if i screw her berban up i will never here the end of it ...

@FalconsGarage 3 жыл бұрын

those T's go to the rear heater core, so yes you can just bypass them too if you want, but if the reason why you are doing this is because the front heater core is leaking you could just leave the rear ones on and it will still help keep the truck warm on the winter..... With this been said dont forget to go back and fix the real issue in the future

@crazedpaul9836 3 жыл бұрын

@@FalconsGarage we dont really need heat in Florida....my wife does not even use the heat because the door or flap gets stuck and she has heat instead of ac....i may just do it right at this point their are no leaks in the heater core.... and parts are only about 150.... I just have Alligator /t-rex arms... LOL...

@crazedpaul9836 3 жыл бұрын

Thank you for the super fast response Appreciated...

@miguelroybal6599 4 жыл бұрын

How much douse a heater core cost to replace on a Chevy S10

@FalconsGarage 4 жыл бұрын

Depends on where you live .. but I would say roughly over $400 labor

@jameslevine1099 4 жыл бұрын

Did it fix your over heating problem

@FalconsGarage 4 жыл бұрын

Yes. Basically my truck always had an air bobble.

@c.m.m.5989 3 жыл бұрын

What if one of the heater hoses is 5/8" and the other one is 3/4", how can I connect the both together?

@FalconsGarage 3 жыл бұрын

there is an adaptor with those outlets, just ask at the parts store

@c.m.m.5989 3 жыл бұрын

@@FalconsGarage Yes, I went to the Auto Parts Store and asked about the adapters and they sure had the 3/4" and 5/8" adapters. Thanks again and keep making those tutorials!! Best Wishes!!

@miami305trini 2 жыл бұрын

I have a 1985 Chevy caprice I want to bypass it what do you think that will solve the problem of the faster I go the AC gets hot

@FalconsGarage Жыл бұрын

probably not

@miami305trini Жыл бұрын

It worked

@javierbnfjordd8711 3 жыл бұрын

Hey man I have a question will your AC still work thanks

@FalconsGarage 3 жыл бұрын

AC yes. HEATER no.

@javierbnfjordd8711 3 жыл бұрын

Thanks so much for your reply and for the answer

@omarramirez5523 4 жыл бұрын

Is there a part number for the bypass fitting ?

@FalconsGarage 4 жыл бұрын

Omar Ramirez not really. Just different size fitting like I show in the video. Part departments should be able to help you with sizes

@loveofchrist5808 Жыл бұрын

Hello young man I hope you answer my question but who knows this video is a little bit over a year but my question to you is on the vehicle that you are working on you know bypassing the heater core, did you delete the quick disconnects that came with the truck from the factory. I noticed that you have no quick connects or disconnect so I don’t know what they’re called but in so many words I noticed that you have a straight hose with clamps there that’s why I’m asking can you tell me what year this vehicle is and or did you delete the quick connects that’s very important because I’m thinking about doing the same thing using the hose directly to the heater cover because the quick connects are very expensive. If I’m not mistaken each one’s like $30-$40 and I need two of them so please let me know what you did because if it worked on your truck I hope it will work on mine. Thank you once again sir please send me a message let me know what you did and God bless you and your family and friends and all the people that follow you on your Channel so thank you once again. PS I’m in the middle of a job right now and I’m waiting for your response today is July 1 Saturday sabbath and it’s about 8:35 in the year is 2023.

@Hugeroost Жыл бұрын

Dude, your making a mountain out of a mole hill. Jeez

@johnwaugh2613 Жыл бұрын

My 2007 silverado has heavy smell of coolant inside and windows get fog bad..but no coolant leak in Cab.. IS THE HEATER CORE BAD ??? im thinking yes.. Living up in the northeast 28° last nite... 🥶 called a few services stations no one calls me back. Thinking they don't want to do this job ? Still going to do this thank you..

@FalconsGarage Жыл бұрын

yeah sounds like you have a heater core issue .. but to remove it or replace it Dash will need to come out .. so not an easy job

@johnwaugh2613 Жыл бұрын

@@FalconsGarage thank you got a price from a local garage $1300.00 parts and labor Sounds reasonable. Thank you for getting back to me .

@Trevor-mm5ji Жыл бұрын

@@johnwaugh2613 my shop quote 500for labor I'd shop around 1300 is high

@johnwaugh2613 Жыл бұрын

Thank you im going to do that I appreciate your help.. I'm glad I have other vehicle use.

@jayb5627 Жыл бұрын

Theoretically, can you just use a shorter bypass hose closer to the pump/block and get rid of that long hose loop? I'm guessing it would look cleaner specially if its a show car.

@FalconsGarage Жыл бұрын

yes ..

@erics3527 9 ай бұрын

I did this the heater core hose crimp clamp failed and ran it from the outlet hose I believe is is worked fine. Damn thing happened in the middle of nowhere. Only thing a fewe hundred miles later my check engine light came on is this common or just coincidence?

@aceseightsazhvacsparkyandg8138 4 жыл бұрын

My plastic container broke do they make any metal ones . Not sure way you use plastic for this lol.

@FalconsGarage 4 жыл бұрын

Ive never seen one .. but im sure they do .. for racing set ups

@anthwor 3 жыл бұрын

Less metal, less corrosion. And it's cheaper

@escanormv5286 3 жыл бұрын

Gud day sir,ever since i never use my heater,now i had a heater core leaked.. Can i bypass this permanently?

@FalconsGarage 3 жыл бұрын

Yes you can, like the video .. but if your planning to make it permanently .. find metal bypass hoses they will last longer

@escanormv5286 3 жыл бұрын

@@FalconsGarage thnk u so much sir...liked and subscribed done..

@Deadlock2233400101 2 жыл бұрын

Will bypassing the heater core stop it from overheating so quick

@FalconsGarage 2 жыл бұрын

@Cammed5point3sierra 3 жыл бұрын

And how would you block the heater core outlets ? With ductape?

@FalconsGarage 3 жыл бұрын

you can .. but there is really no need

@angelbenavides5784 10 ай бұрын

There's no need to do anything to the heater core itself?

@FalconsGarage 10 ай бұрын

If your just going to bypass it no. But remember this won’t “fix” the issue.

@fernandochacon933 Жыл бұрын

Puedo hacer lo mismo en una 2007 ?

@FalconsGarage Жыл бұрын

en una camuineta 2007 si .. puede ser que sean diferentes tamanos .. pero si

@nickymetlow1140 Жыл бұрын

Hey bro where is your shop are you in Houston

@FalconsGarage Жыл бұрын

Austin

@jakeskage4601 4 жыл бұрын

So was it 3/4 or 5/8??

@FalconsGarage 4 жыл бұрын

3/4

@marklewis4664 Жыл бұрын

So do I leave those 2 open or plug them

@FalconsGarage Жыл бұрын

the 2 from the heater core .. you can just leave open

@marklewis4664 Жыл бұрын

@FalconsGarage one other question I replaced my blowe module and my blower still stays on whe the truck is off.

@mauriciohouston80 3 жыл бұрын

If the heater core doesn't work can the car overheats?

@FalconsGarage 3 жыл бұрын

not likely

@Izzul482 2 жыл бұрын

Can i still use my a/c if i bypass my heater core?

@FalconsGarage 2 жыл бұрын

yes.

@Izzul482 2 жыл бұрын

@@FalconsGarage thanks😁

@orlandoosorio87 5 жыл бұрын

Would the ac/heater still work after doing this?

@FalconsGarage 5 жыл бұрын

Ac yes .. Heater no .. because the heater need coolant in the dash to heat up

@orlandoosorio87 5 жыл бұрын

@@FalconsGarage Awesome! Thank you sir most appreciated.

@daklown3183 2 жыл бұрын

why by the bypass? just remove the second hose and connect the first hose to where the other hose goes.... dont forget to keep it from pinching and binding!

@FalconsGarage 2 жыл бұрын

And we’re do you out the 2 hose? That’s why you bypass

@chriswhite2151 Жыл бұрын

I did that a few weeks ago, worked fine

@daklown3183 Жыл бұрын

@@FalconsGarage just take the inlet hose off the core, and attach to the inlet on pump, secondary hose just remains attached to core outlet.

@daklown3183 Жыл бұрын

@@FalconsGarage no need to purchase adapters

@tripp121283 4 жыл бұрын

Im thinking of cutting through the firewall to pull my core out. Anybody ever try it that way?

@FalconsGarage 4 жыл бұрын

Oh no ... that’s a big don’t do that. The heater core is inside the “air box” witch is under the dash. Even cutting the fire wall the heater core will not come out. Plus the heater core is not directly behind were the hoses come out of the fire wall. Hoses are in an “L” shape so the actual heater core is more towards the right side of the truck. It will be 100 easier to remove the dash then to go in the way you are thinking.

@swaylay22 3 жыл бұрын

Cut the air box behind the glove box