How to Back Flush Your Heater Core by Yourself
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- เผยแพร่เมื่อ 27 ก.ย. 2024
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In the video, 1A Auto shows how to flush your heater core.
🔧 List of tools used:
• Rubber Vacuum Hose
• Drain Pan 1aau.to/ocI/1AX...
• Funnel 1aau.to/oam/1AX...
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Could a blocked heater core cause my truck to overheat?
I'm trying to get to the heater core on my 2006 Chevy Equinox. do you happen to have a video on it? I've looked and I may be over looking it..
Great video but here’s an extra tip, before installing the hoses back run coolant through the heater core to flush out all the water so you maintain a proper 50/50 mixture of antifreeze and water
Do not do it like this. Old Heater cores get brittle where the hoses attach. If you bust off one of those metal nipples then you will need to replace the whole core which involves dash removal. Disconnect the hoses further down and flush from there. You've been warned.
pinecone moment
@BroncoBob *you're
That is why I said just go ahead and change the heater core. It is a long process; but, it is not that hard to do. Just a lot of disassembly and reassembly. 👈🏿. YOU MUST BE A PATIENT GRASSHOPPER. YOU CAN PAY $700 TO $1800 TO GET IT DONE YOURSELF.
Actually, the dash is not involved. On that particular model of Chevy/GMC the core is accessed from the lower footwell and involves 6 easily accessible screws and removal of the plastic core cover. It takes about 10 minutes.
My mechanic said the same thing about dash removal and lots of $ which prompted me to look it up on youtube. I was very relieved to see that it is an easy job! The core is cheap too!
Great tip
FYI SOME VEHICLES HAVE PLASTIC HEATER CORE LINES COMING OUT THRU FIREWALL. SO DON'T TRY AND REMOVE HOSES ON OLD VEHICLES (MERCURY VILLAGER / NISSAN QUEST) INSTEAD CUT IN MIDDLE & REPAIR WITH A DOUBLE NIPPLE END SPLICE REPAIR. HOSE CLAMP ON.
The problem with alot of these heat radiators is their Inlets and outlets tend to be on the same side. Which drastically reduces the area utilization on the heater core, and makes gum ups easier.
+Dave Crupel Thanks for the feedback!
I need to try this on a 1998 Oldsmobile Aurora. The Heat quit working immediately after a coolant flush. When I replaced the Anti-Freeze, the County extension Agency said if it less than 5 gallons, to dump the coolant down the toilet. I couldn't believe their answer! So I have a 5 gallon Home Depot Bucket with the old Coolant I need to dispose of. Thank you for the video. Much appreciated.
finally someone who shows you what to do and not someone who likes to hear themselves talk!
+jody sherlock sr. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Those hose block off clamps are what dreams are made of :D
Right. Mine on my van were designed by the devil
Yeah, vise grips don't do the job. Don't ask how I know
Ive used needle nose vise clamps and a broken paint stir stick on either to protect the hose from the jaws.
@@tysonkay4900 good idea
Thank you so much for the videos.
Inspired to do mine God bless your channel.
+2brokenwings73 Thanks for checking us out!
Isn’t a regular garden hose already 5/8”? If so then no adapter needed if you cut up an old hose or cheap one. the female on the old/cheap hose goes on the male garden hose supplying water. Other half can be the outflow. Just a thought.
Could a blocked heater core cause my truck to overheat?
@@GoatFaceKilla no
@@GoatFaceKilla most likely a thermostat needs replaced you want to make sure your water pumps working and your radiator is got antifreeze if the water pump is working and you got antifreeze the most likely it's you thermostat of course you could have a clogged radiator that needs flushed most likely it's the thermostat or water pump
some are and yes that can work!
Am I the only one waiting for him to fire up the truck and say "That fixed it"!
I think hes still wearing a coat...
Yea
Maybe he is still scratching his head. Since he was anticipating the heater core to be more clogged.
you should flush it in the manner that you did the first time and then back flush it the other way the second time to remove all grits and contaminants from the tanks on the heater
I agree, with the hoses in place, why not flush in both directions it wouldn't take 30 more seconds and might dislodge more debris. Regards
Do you need to burp it after this or just add coolant
Good job. Would like to suggest for some cars it's hard to get air out and to help with that problem after installing first hose remove the yellow clamp to allow coolant to burp the core then when coolant comes out install the second hose,
Dude that introduces minerals into the system though!
Here's a trick I did. I put flush in the system then I reversed the hoses on the input and output to the heater core to get the reverse flow through it. Then drove it till I had about 6 hour's running time on it which was the longer option suggested on the Prestone Flush bottle. I think it worked well but I won't know till winter for sure. It's summer now, hard to tell how the heater will actually work when it's cold. Anyway, thought it was a neat trick, super easy and super low labor to get the reverse flow through the heater core. Hope this helps someone.
+Peter H Thanks for the feedback!
I have dodge trucks and have been doing this for 15 years. I fill the core with clr, let sit for an hour and then flush it with plain water. Works every time. I can't wait to hear why i shouldn't be doing this😂😂. Cheers!
Very well explained
My car make water running sound and water suction sound under dash where heater core is. How can i get rid off
+navjeet singh Thanks for checking us out. That sound can be caused by air in the system, have you made sure it was entirely flushed? If you are unable to figure out what is causing the problem we recommend you have a trusted garage take a look to accurately diagnose it for you. 1aauto.com
Did it work?
Thank you for the video. My heater core hoses are permanently sealed to the tubes and I have to cut them to do the flush...can you guys recommend any type of wrap/seal to tape them back together?
+Philip Bond you would want to replace the hoses. There isn't a tape that would be able to hold them together. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Use a T connector where you cut the hoses.
Scotch tape. Be sure it's 3M though.
@@billbosch9127 Great answer. The person that said there aren’t any stupid questions never saw the one about using tape on a heater hose.
@@justpray365 😂😂😂
Could you use some CLR in the water (with proper sprayer of course)?
I have a 2000 s10 that keeps getting sludge in the cooling system and just pulled my heater core hoses off last night and this was the video I wanted to see. (No water in the oil)
+Larry Gonzales Thanks for checking us out!
Excellent instructions. Great soundtrack 👌
I don't even have these problems, but I like knowing what to do when it's time
Ever isolate the core, vacuum and blow it out after flushing it and fill it with CLR overnight or...? Have a 2000 Taurus which are notorious for blocked cores, it's at the bottom of the cooling system. Doing mine tomorrow, using just water doesn't work very well!
Thanks, good production.
+sbdrumr Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
They sold out of thermostats at a critical time, winter time. Please do a video on changing the thermostat on a 4th Generation Dodge Ram plus list the tools need with socket extensions.
I believe I mixed up my heater core hoses! Which hose from the radiator and engine goes to Which connection to the heater core?
So the hoter hose is the inlet right?
And the cooler is the inlet?
I need to know this too
Good video! Very informative.
Luke warm heat on driver side cold on passenger side. Car gets hot while driving and fan kicks in even with heat off. Any advice thinking of doing this flush then replace heater core if the flush doesnt work.
Beast Mode sounds more like blender motor problem
I flushed my 1997 C1500's entire cooling system with tap water. I plan on replacing it with 50/50 coolant, but I am concerned with the tap water that is left in the heater core. Should I be worried about corrosion from the left over tap water or will it be diluted with the fresh coolant enough to not matter?
Water wont hurt nothing
Remember pre diluted antifreeze is diluted with water if you buy straight anti freeze it will say to dilute it with water
excellent video and parts, thanks
In the end did you attach the hose to the cold one
At 5:30.. is it safe to do this with a water hose? Just won't be able to get the water back out.
Yeah , just add your coolant through your clear hose until the coolant comes out , then reconnect your heater core hoses.
what about flushing the water that's left in the heater core?
so I am assuming I will need to do this as I had bad heat. But is it too late if you have gone from bad heater, to intermittent overheating, to full overheating?
Did not know about the block off clamps. Need those. Thanks!
+Paul Lorenz Thanks for watching. 1aauto.com
You don't need those clamps you would maybe lose a cup of antifreeze by not using them if that
Do u have the removal tool for a heater hose for a mazda protege? Please
So if doing a full system drain , its recommended to drain the radiator first then flush the core?
Was very subtle but at 5:50 i noticed the inlet and outlet looked NEW or VERY CLEAN compared to before (3:45)
... did u put a new matrix in there or something or did you clean the metal and just EDIT the video?
caffreys1979
He put in a new heater core. If there’s good flow and the heater is still not working, then the core needed to be replaced.
He said IN THIS CASE THE Sediments coming out wasn't bad. HE DID NOT SAY He was doing this demonstration to show us.😮
Yeah I noticed that too lol I think they did that retested no heat new heater core?
i didnt run mineralized tap water thru mine... I bought two hoses to attach to the heater spouts about 3 ft long each... filled them with distilled water and then used an air gun to flush one way, and repeated the other way.. that way no corrosion could happen in the future... peace
Good idea
Thanks for the tip 👍
+yh Day Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Hi I have a question, if I was to remove one of the heater core hosepipe and add a water hose , will I be able to flush the whole cooling system,
Thanks for sharing
I'm not sure if I have the right hose in the right side of the heater core. Can you help please?
Well I know this is a Chevy
when you're taking off the air box be very very careful with the mass airflow sensor. try not to bang it around or drop it you could damage it and your truck will not run properly... It also a good time to inspect the mass air flow sensor for any dirt build up.
it's not a cheap to replace the mass air sensor..... Just FYI.
I have a flickering noise behind the glove box .. Blower doesn't have force when flickering
Boiling water mixed with CLR. Let sit for one hour. Then flush.
Looks like a new heater core to me
Likely they used one needing replaced so the fluid flushed was very obvious to the viewer.
Can you make a video on a heater core replacement on a 2008 scion xb?
Hello..im tryna flush my 2011 kia sorento heater core..i feel one is hot and one is cold..question..which side would i send water thru? The cold side or hot side?
The cold side would be sending it through backwards which is what he is reccomending but I would do both ways.it goes in the core hot and comes out cooled down.
I changed my ac compress AC blows cold 🥶 but heater doesn’t heat any idea if i can fix it by doing this to my car ?
Did it ever work I'm facing the same issue?!
Depends on the vehicle. No heat to the defrost either? Some blend doors can get stuck.
What if both hoses are hot in my case on a 2010 Chrysler Sebring
I WOULD LOVE TO SEE A VIDEO ON CHANGING THE FUEL SENSOR AND FUEL PUMP ON A 2014 DODGE RAM. THEY SAY THE BEST WAY IS TO REMOVE THE TRUCK BED AND IT IS EASY TO INSTALL.👈🏿. YOU MIGHT NEED A FEW HELPING HANDS TO DO IT.
Can you just swap the hoses and let the vehicle do the work?
Does a load of steam /smoke coming out the vents rule out a flush and confirm a bad core?
John O'Donovan yes
Definitely. Old ones from the 80s you could actually fix with a soldering iron.
If you're going to mess around with taken out the thermostat put a new one in those things are bitch to get to and you might as well replaces the right way because you will never want to do it again I've actually got rid of cars that had bad thermostats because the whole dashboard had to come out just to replace it
Anyone know what size hoses and fittings to buy? I don't know much about measuring this stuff lol
How to replace rear heater çore 2008 hyundai veracruz 3.8
My sons jeep has great heat. But the defroster don't work. Windows fog over instantly. No liquid on the floorboards. Possible plugged heater core?
+Mr Phillips We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Is it possible that this can cause the vents to blow different temperatures? My 2 passenger vents are blowing a little cool with heat on full blast. I checked all of my blend doors and they're all working fine, I have a 2002 Camry 2.4L
I have the same issue on my Jeep, left side is cool right side is hot. It's been flushed already from a mechanic and no luck. Have you found the cause of yours?
What if heater core has a unknown leak,will it flood floor in cab?
+John Mccloud Many times this will happen if the heater core is leaking. Thanks! 1AAuto.com
Want to flush my heater core on 2009 Dodge Ram 1500, any tips or videos
+johnny mccloy We're always cycling through common cars. We'll add this repair to our list! 1aau.to/m/Shop-1AAuto-c
I have a 07 ford explorer. I am having over heating issues. Its not a head gasket. Started with the heat only working when I was on the gas. Then one day as I was driving the temp gauge kept going hot to cold. I replaced the thermostat, the radiator, sensor, noticed it leaking and changed water pump... It still overhears within 5mins of driving. Any advice?
+Ashley Brown We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
Where can I yellow clamps
Both of the hoses on my 2000 Dodge dakota 4.7/v8 seem hot.🤔
blower motor maybe? do you have full strength airflow or does it seem low.
I have chevy optra and when turning on AC coolent leaks and engine over heats what should i do?
+Tony Issac Thank you for checking us out. It does appear that when you turn on the AC, there is an additional space where coolant has more pressure to spread throughout the engine. It could be that the water pump is leaking, or the fan is not engaging properly. It is best to have it fully diagnosed to have it fixed as soon as possible. 1aauto.com
I have heat in the back of my Ford expedition but no in front if i do flush work or not
They are 2 heater cores so yes the front one can be blocked.
Tnks
My car over heats, smoke comes out vents, fog windshield , wet floor, maple syrup smell. Is this a failed/clogged heater core? I have a 95 vw cabrio. Can I flush this and would this fix it?
No, it sounds like you need a new heater core :/
Will this fix engine overheating?
This fix your issue
So is the hot hose the inlet or out let?
+Angel C Hot in, cold out! 1aauto.com
How do you know if the heater core needs to be flushed or if it needs to be replaced?? I have a 97 bravada and the heat blows low the water pump has been replaced and the engine doesn’t run hot has coolant. Do I need to flush the engine or the core?
+Snowman3g Thanks for watching! There could be multiple reasons why you're having this particular problem. We suggest taking your vehicle to a nearby reputable shop to accurately identify the cause! 1aauto.com
1A Auto Parts thanks but your responds didn’t help
Video tip...please turn off the music while giving important instructions.
thankz man
Is that a 3.8 Litré Générál Mótoŕs
Great clamps. I like the directly to the bucket thing.
Thanks
I did several flushes on my 98 camry, went around with water in it for about a month. When I put coolant in it, it started leaking from water pump. Any advice?
+MerkinMuffly It was probably leaking with water in the system, just the water was evaporating before you would see it on the ground. If the water pump or seal around it is leaking. You should replace the water pump.
Good advice, but cutting with the sawzall should have been last after heat. Obviously.
+Dano C. Thanks for the feedback!
Since you allowed air into the Heater Core, did you have to burp the cooling system after you finished the flush???
Yes
Ive back flushed mine twice and im back to not having heat. It lasts for about 2 weeks. I have a new radiator so what could be causing it to clog?
+Kendrick Bannister We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
When you say this is the hose,we can't see what you say.
Hi I decided to give my old car a coolant change following your video. I have noticed that the passenger and driver foot well is wet. Will flushing out the coolant solve this. If not will something like k seal or other make of hole blocker do the job
+indiandy03 It sounds like the heater core may need to be replaced. Flushing the heater core will not fix the issue. It is recommended that you replace the heater core instead of using an additive to resolve the issue. Hope this helps you out. 1aauto.com
I have a question I used some head gasket seal made by bars an it clogged my heater core up can it be flushed out my heater core I drive a 01 Monte Carlo
+Mr. Frost Not likely, you'll have to replace the heater core. Always take care using products like that, they are designed to find openings and fill them. It doesn't know the heater core isn't a leak.
@@1AAuto I had flushed it already an got all my heat back an blowing real hot heat
I want you guys to start doing 18 will or videos peterbilt Cummins international Caterpillar freightliner you know
THANKS
When doing this job on my car is there a certain type of pump I need and certain power you recommend so it won’t over power my heater core? And if there is sludge buildup will CLR clear it out, if so do I do a follow up with distilled water to clear out the CLR once it has done its job?
Make sure you keep under 10 psi
I didn't dispose of my coolant legally and now I'm on Santa's naughty list.
I dnt feel lonely anymore
please need more for Honda civic 96 00 '👍
+marshall mathris Thank you for checking us out. We will forward this to our Studio in hopes of more videos being uploaded. 1aauto.com
What if both hoses are ice cold?
Thomas Dougless I don’t think that’s possible since one hose is from car’s radiator system which is hot if your engine is running.
Little late but that would be a thermostat
What if you do have a leak?
You flood the base floors
So do you hook up the reverse flush to the hot side or the cold side
The hot coolant goes IN to the heater core and comes out less hot. So to pass water the other way (reverse flush) you'd connect your garden hose to the cold(er) side.
The purpose of a backflush is to push the sediment back out the way it came in. This hopefully prevents getting the sediment lodged further in the heater core.
Heater core hot going in and hot going out but inside the cabin its warn
Normal. Engine producing more heat than you need inside the vehicle. Which gets dissipated by the radiator.
IF YOU SMELL COOLANT IN YOUR CAR WILL DRIVING, EVEN IF THERE IS NO LEAKS, YOU MIGHT AS WELL CHANGE YOUR HEATER CORE AND YOUR THERMOSTAT. NO GETTING AROUND IT FOR REAL.
Kind of overkill for little result. I use one quick blast of high pressure air!
Inlet hose is hott, but it gets cold about a foot away from firewall. Outlet hose is cold. Problem with heater core?
+Mary Poopins If the heat in the vehicle is luke warm, you could try to flush the heater core out. If the core is plugged up inside it may cause a luke warm situation in the vehicle. Hope this helps you out. 1aauto.com
This guy looks like luis suarez
What if both hoses are cold and the truck has been running for half a hour ?
Thermostat is stuck closed replace it
Open
Where is the heater core in a 2000 Chrysler Town & Country?
+Lety Velazquez We currently do not have an auto repair video that shows it's location. It may be on the passenger's side under the dashboard. Hope this helps you out. 1aauto.com
Probably under 3 ton of dash plastic. Nightmare to get to most of them.
Can this make the car overheat also
Mr. Frost no check your electric fan make sure is working. That's if your car, truck gets hot wen you are driving. The other tip is if you're car, truck gets hot wen your car is park but is on working that is the termostato. I hope this info well help you. Good luck.
@@juanbarrazasotelo5361 got it fix it was both my heads on my engine that needed to be rebuilt an my head gaskets replaced