How To Change The Coolant In Your Car
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- เผยแพร่เมื่อ 1 ม.ค. 2025
- Learn how to change the coolant in your car.
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In the service manual for my 1999 Acura Integra, it recommends replacing the engine coolant every 45,000 miles. Before getting started, the first thing you want to do is make sure your temperature control is on maximum heat. For modern cars this is often an electronic control, so you may need to run the car or at least turn the ignition on beforehand to make sure the heater core is opened up. This will ensure that you replace all of the coolant in your car. Before working on the car in any way, it’s critical that the engine and radiator have completely cooled down - you’ll often see a warning for this on the radiator cap. This video will walk through the process of replacing the fluid.
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8 years later and this is one of the only (of the top 15 videos that pop up when needing a coolant change on a civic) videos that actually helped. Thanks man hope all is well and family is thriving 🙏🏾
I think it is cool that you used to design these systems and now you are working on them and giving the public the information they need to properly service them.
I've probably watched 20 videos on coolant flush, looking for someone to explain where to find the engine block drain bolt. I know my car is not the same, but now I have a reference what it may look like. Thanks!
Let me know if you find one.
Great video. Proper maintenance is very important and often overlooked by many people. Money spent early to prevent failure is cheaper than money spent later for a repair. A good recommendation is to also fully flush the system with water and use a coolant tester to ensure a proper coolant to water ratio after refilling. When bleeding air from the system it is good to have the part of the car where the coolant filler point is to be elevated to assist in removing air. Like the video says a half is not an unreasonable amount of time to wait. An air pocket could cause a sudden unwanted rise in temperature causing engine damage, especially if the head and block are of dissimilar metals, or completely aluminum.
The video was very easy to follow. I am going to try this for the first time, on my own... tired of paying outrageous prices for a 10 year old car! This looks easy.
Ina Spivey same. I will as well.
If you live in a cold climate, it can be worth flushing the heater core separately. My old car would give absolutely no heat in the winter; but after a back flush of the heater core not only did the heater start working significantly faster; it put out heat like it was brand new. This can even help with reducing how much time you let your car idle/defrost before leaving.
As an ex motorcycle rider I love the car heater and I'm in Australia.
This is awesome advice! 👍🏽👍🏽
that coolunt looks delicious, the ideal sports rehydration my golf coach says.
Rich in potassium
Rich in antioxidants... or is it antifreeze?
Apple juice with no added sugar, anyone ?
John Kyon your Volkswagen Golf coach says?
The drained coolant liquid is Mountain Dew.
Thanks for making a sponsored video that isn't super hacky. I don't mind when it's done right.
I don't use coolant in my Accents, it's just another one of my weight reduction mods
cool you saved 3 kgs in your car
Accents are naturally cool.
Hotter engines run better you know
Henry Rasia too hot and you are fucked
😎 If the car's paint is blue, it keeps the engine cool.
Love these car maintenance how to videos, keep up the great work!
1:34 probably should mention that the reservoir is not easy to remove in a lot of cars.
The magic of video editing... 😂
it amazes me how useful your videos are even that much time after.
Always good to measure the amount of fluid that you drain so when you fill it you know what your shooting for. The thing I would worry about in this video is you drained the engine block (nice that it has a bolt for that which is easily accessible) so when you refilled (thermostat closed) did the block get enough coolant mixture for a safe startup. Knowing you drained a gallon and that you put about a gallon back helps to give you confidence that it did. Just an extra bit of knowledge. Great video. Thanks
@@168grhp - you can’t generically say that the system will automatically purge the air. This is absolutely wrong in many cars like some Toyotas
@@condor5635 I deleted my comment to keep from misleading someone with a cooling system such as you describe.
Some cars have bleeder screws to help purge the cooling system. The GM 3100's have one on either side on the front of the engine. Open the one on the accessory belt side until air starts escaping then when coolant starts squirting out tighten it back up.
The engine drain bolt is what most people skip. Great job!
Great video, I like these do it yourself videos, save us time, money and we learn something, and how to maintenance our vehicles.
Finally someone that knows that sitting in the paint does scratch it and therefore used a rag to protect it.
I have a 1974 plymouth satellite would it be almost the same process?
wow chrisfix got old 😅
looool, I got that :3
?
+Taylor F. I'm assuming zibby is referring to another YouTuner names ChrisFX who does DIY maintenance on car videos and he does a coolant flush tutorial much like Engineering Explained I'm assuming
+2PacPRNDL TH-camr named*
2PacPRNDL I know of chris, but his change was full out flush, this was just a change.
This was so easy and to the point. Thank you!!!
As a general tip I always attempt to get as much coolant into the radiator as I can before starting the car. Squeezing the hoses will help. Most cars also have bleed screws which must be used both before and after starting the engine.
What’s the idea about getting the air out? How do I do that when using a regular funnel?
@@ktfoent for example if the top hose is full of coolant then the radiator will be full. What one is trying to avoid is having a system that needs filling the next day or worse, driving on a partially filled system may blow a headgasket. Vacuum filling works the best particularly on rear or mid engined cars.
Ha! Thank you for posting this video. My local garage wanted to charge me $270 + tax for the job.
Excellent video, no kidding around, straight to the point.
I need help changing my blinker fluid and exhaust bearings
And piston return springs,dont forget about that its very important
Awesome video (as always). In a future DYI video, you might spend just a few seconds explaining the torque wrench -- both why it's important, and how it works. It's probably the only part of this process that would be unfamiliar to most car owners.
I agree. I have no clue about torque wrench
Impressive advice and damn you got experience on vehicles as 1 advice on here you mentioned many won't even know! So hat off to ya.
Do all engines have drain bolts? Ive never heard of them until this video. And would it be a bad idea to run distilled water through it to flush out the coolant in the engine, then mix the 50/50?
I was wondering the same thing!
The plastic drain valve on the radiator can easily break on older cars and leave you with a bigger issue. It may be better to remove the lower rad hose to drain the radiator.
Try to avoid having spilled or open coolant around pets. it smells sweet so they are often attracted to it and its extremely lethal. so clean up any spills after :) great tutorial
One of the many reasons why it's embittered.
you dont say
Dang. I just love spilling chemicals around my dog and letting him lick it up
Bro you are the best. I just did this and saved myself some money.
I've been anticipating this video. coincidentally my radiator developed a small crack yesterday.
A trick I've found helpful for bleeding some cooling systems is to get an old/cheap radiator cap that fits,and pull the valve part out of it,so it's just the cap. Install said 'gutted cap' and drive around a bit,while keeping an eye on the temp gauge. Park it,and let it cool,and maybe repeat,if needed. Then install the normal radiator cap. This way the air will bubble out into the overflow tank,and when it cools,it will draw coolant into the radiator from the overflow tank. Self-bleeding. It just takes a couple drive cycles.
Don't do this lol
I have never heard of the engine drain bolt before, do all cars have that? I own a 2011 chevy malibu ls 4 cylinder, my owners manual says nothing about that.
Not all do, some you need to drain 2-3 times for a flush, most are fine with just the drain and replace.
Like oil changes, good to get it all but most is good enough, just doing the maintenance is half the battle.
Most every engine has coolant drain plug(s) on the cylinder block.
The owners manual will probably not mention it, but the manufacturer's service manual will.
Thank you for your Video. It's very clear demonstrated. Awesome.
so what happens if i didn't let the air out in the system?and letting the car idle for this long time does it effect because im in the hot country typical temps can reach around 32-38 c even at night :D. Car is 2012 Dodge Charger R/T and has 82000km.
Air in the system effects the performance of it. I'd suggest making sure it's clear of it. Granted, most systems will deposit the air in your system into your radiator and thus leave the radiator itself a little low on coolant (or take from the reservoir). Although, if it's low on coolant (or *typically* drains the reservoir) then you may have a coolant leak or something else. If you're a DIY person I can make a few suggestions but otherwise take it to the shop if you notice this behavior.
The car should not overheat even in high heat situations given the proper coolant mix and that there is no issues with the cooling system. If you're worried... keep an eye on the temp gauge. ;) I don't know the specifics but I can tell you that I've been in stuck in traffic on the highway nearly not moving for over half an hour with the A/C on. The outside temperature was a cozy 46-48 C and my cooling system handled it fine. This was a late 80s Honda. I'm certain cooling systems in newer cars, like your Dodge, are more efficient.
thanks for the info
This video quality is mint !
How do you know when the air is out though?
The easiest way to feel confident about it is to just wait 30 min?
Great video by the way. Its informative on something that in not technical but quite handy.
When you stop seeing bubbles gurgle up from within the fluid.
Why are air bubbles bad?! Can it cause problems if you don't get them all
@@ninjalobo7 Basically if there is too much air, then it wont cool the engine as efficiently. The coolant mixture transfers heat much better than air. So it might overheat with too much air, but some is fine.
Its practically impossible to completely get it out.
the one thing i might add is to place the front of the car either on jacks or on an incline to help with the purge, the other is to squeeze the top of the radiator hoses to help move the air through the hoses
Easy yet important. Awesome DIY . Screw reviews - DIY's would reach way more interest in my opinion.
now thats a nice integra
You sound like Kirk from Gilmore Girls-I love it! Thanks for the info, friend!!
Could you do a video on how to change the head gasket on that sort of car? or something similar of a head gasket how to?
How to change a head gasket-pray you don't have a Subaru
BOXER HEAD GASKET REPLACEMENT SOOOON
(rcr e30 engine rebuild joke...)
right, Subaru can be complicated...tricky!
+MARINO VASQUEZ especially ej20 I'll stick with my ez36...
+Jake B you should try a 6a13tt head gasket, I'm gonna do the clutch soon
Love your videos mate. Huge thumbs up!
Normally I'd be cynical about sponsorships, but AutoZone is a good shop! Every time you stop in there you leave happy, the people there are usually knowledgable enough to point you in the right direction and they don't upsell you all that bad. Sometimes AutoZone saves your ass, thanks guys!
Good explanation superb brother
Thanks buddy. Your video was very helpful
I have a 1997 Acura Integra GSR. Can anyone tell me where to find the engine drain bolt? Do I need to be under the car or looking down from above? What is it near? What socket size is needed to remove this bolt?
0:43 in my car needle on middle is normal temperature or not
is it possible to fill the radiator with urine if yoj don't have access to water, for example, in the desert, ?
Spit in it.
doubt you would produce enough and it would corrode the system because urine is acidic.
although in ww2 British troops would fill the water jackets of their machine guns with urine because water was better used for hydration than keeping their gun cool in the desert.
thats nasty
+John Kyon lmao
Technically, yes. If you could produce enough urine without access to water, it would work.
hi. is it a drain plug on the motor on hyundai GETZ as on your video ?
I did not know you could rent tools at auto zone that's cool
alot of cars have a bleed screw on the thermostat, surprised you didnt mention that
why can't the system purge air into the reservoir tank?
Thanks
dude...u r superb and I really love ur work..I've learnt a lot from ur videos and thank you for dat...aaa...well, I want u to make a video explaining all the types of chasis and their work...I mean all about chasis...hoping to see this upload...
Just topped up my coolant but I didn't bother draining anything will she be right or am I fucked?
She's all good 2 weeks later in case anyone was wondering
@@oggy2402 Good!
Thabks, A Great Video for us DIY’ers who have to learn and maintain a car during hard times(increased cost of living).. As a complete car repair novice, my issue is the mix, do you buy it already mixed or do you have to mix it with distilled water..? Thanks in advance..
Lisle spill free funnel is a must and it's cheap. I know this is a sponsored video but for Honda's get the OEM Type II blue, you can mix it with the older green stuff if that's already in the car.
Awesome explanation !
it would be cool if you could do a video on how to adjust windshield wiper arms and blades.
yeah i think also chrisfix got old, he didn't show on his videos how to drain the coolant from engine block. this video is good one.
What type of water should you run in if you don't run 50/50 mix? Isn't distillers bad to run? Also, I love in Texas. People say you're supposed to at least run 15% antifreeze with water. I don't think that's necessary because it doesn't get below 75°F even at night, but that won't mess anything up will it? Thanks in advance
I meant to say "isn't distilled water bad to run in the system?"
+TwoWheeledMisfit I heard something about it and I actually think you are supposed to use distilled water, their is a channel called chrisfix if you don't know already but he did a good video on how to do a complete radiator flush and he explains it all
+BeetlexVW thanks!
+TwoWheeledMisfit no problem, I actually live in Texas too I went to autozone and just picked up a pre-mixed 50/50 antifreeze
+BeetlexVW sweet! I want to put a coolant additive in and it said not to use distilled water with it that why I was confused. But thanks again for help!
Thanks for your information and it is of great help for me bless you my friend.
Wouldnt thread seal stop you from opening the drain plug next time?
Nope, it simply helps prevent it from leaking. Recommended in the OE service manual.
You're thinking of thread locker, not thread seal.
2:16 Thanks for that info. I drained, flushed, and filled my 06 Scion XB and was freaking out when 20 minutes later the fans wouldn't turn on. The coolant was starting to steam and I was about to turn it off when the fans kicked and more air came on
@Engineering Explained what happens if the engine doesnt purge all the air out, say if someone forgets to do it?
The autozone closest to me is full of idiots who almost sold me the wrong coolant for my mustang, i forgot to check the kind i should use before going to the store and relied on their knowledge and plentiful resources to tell me the right kind and they failed to do that. All that aside i enjoyed the video keep it up.
Great video! Thank you
Thanks for sharing this video.🙏
I have a Honda Civic 2009 and want to flush the old coolant completely since I'm not sure when it was changed by the previous owner.
Q: You drained the engine block and started the car without coolant in the engine block. Does it DAMAGE the engine? How it should be?
Q2: How to ensure the heating radiator has drained (starting the car may needed)?
I've watched several of these and yours is very informative very step-by-step very easy for the novice I do know a little bit about cars because my father taught me I've even helped pull engines but I have not done my own for awhile so thank you
Thanks for making this video. You saved me some money by not having my mechanic do this easy task.
I own a 2015 VW e-golf and am curious as to what things I will need to do differently since this is a fully electric vehicle. I’m at the 66k mile mark and this is one of the service items I need to check off
I have an issue, my car is a 1961 ford thunderbird. I need to replace a radiator hose but don’t feel like draining the whole system, and I don’t know how to refill it afterwards
Easy and straightforward!
Where do you dispose of the old antifreeze?
I would like to know as well.
Look up places around you that dispose of hazardous materials (same goes for used oil). Sometimes you have to go to the site, but I also know that some shops will take it. Also, some shops will buy back dead batteries, so if you have those lying around you might look into that!
auto parts stores take used car waste, though I think antifreeze needs to be stored in a different container.
You can bring it to the same auto parts store you bought the new stuff from. :)
+Engineering Explained I had done the coolant on my integra before and the first time I had called autozone and they dont take in antifreeze. I called the city and they took care of it. so if people call city hall or such, they can help with disposal of hazardous chemicals
Sloshing sound in Heater Core after Coolant Flush?? Can you share the process with a bottle
I’ve flushed my 2021 Acura ILX. I used the spill free funnel. I burped the system for 3 days more less? I get very hot air on HI setting, but when I go down to 86,85,84, ect… the air goes to room temperature basically? I’ve heard there’s air still in the system, but I can’t see how that’s possible? I bled it for 3 days, now I ordered a vacuum kit, to see if that’ll help my problem? Any suggestions?
My 2017 Civic is due for engine coolant flush and replace, whats the difference between flush and refill vs just topping it off?
Big big help. Thank u.
Can you do an article about Evans Waterless Coolant? Does it really work? Thanks
Very informative. LIKED....SUBSCRIBED!!!
I accidentally dropped the Parker light bulb into the coolant valve and I'm scared to drive my car before it gets lodged somewhere and causes damage. Can someone help on how to fish it out or will I have to take it into a mechanic?
In tropic countries, is it possible to use distilled water only rather than coolant for the reservoir?
Good video. Thanks mate! 👍
Great content. Thanks!
Thank you I’m going to change mine soon
is there diff between dark green coolant and light green coolant?
Remember to drink at least a bottle if you go to Canada in winter ;)
Can you do a video on CVT?
Good to see the integra is still in the fleet? Are you Club Integra sir?
Hello, do s2000 has engine drain bolt? Thanks
why do you ned to tunr on the the heater core or you said open up? open what up? are you just runing the core fan without the engine runing? what does that do? the whole thing is conected to the engine block water jackets right so wotn it all drain out? there are no valves open or closed on the block so i did not understand this part
While u were refilling, was your thermostat still on hot?
I wish the best of luck to anyone actually attempting to follow these instructions. The engine block drain bolt is completely inaccessible in my 2010 Nissan Rogue, so that part of this video cannot be completed for me.
Hi My toyota sienna 2005 brought to the toyota center and told me that there is a leak in the radiator and needs replacement. I went to Through research i found the a temporary remedy for my car and that is the bar leaks cooling system repair. Do you recommend this type of product in your car? Thanks in advance.
Do all cars have an engine drain bolt? I'm not sure if my 88 Corolla has anything apart from the drain bolt in the radiator itself.
I never pull the drain plug.. Yikes never thought this was so specific.
Just flush it with water a few times although the coolant in this video looked ok.
Neither do I. I save a shitload of time by dumping it all at once from the lower radiator hose.
Hello... That was easy enough to follow. Do you have to drain the water from the coolant tank before you go get an oil change????
No theyre separate system and don't mix. 🙂
Is it necessary to unplug the engine coolant bolt!, I am always changing the radiator coolant every two years without drain the inside engine coolant, just drain and fill up the radiator coolant.
What does different color in antifreeze mean?
nothing