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I have a Honda City 2021 model (Asian spec.... In South Africa its a Ballade) anyways, i notice these radiator caps are really crap. or they seem crap. They dont have a good tight fit or they just dont see to have much of a press down when u open them, i wonder if they even seal well? My car has only dont 21000 kilometers but the climate here is a killer, extremely hot... humid weather. How will i know when to change my cap.... besides checking the rubber for strange cracks or warps....
Warped and cracked rubber seal on the cap will cause a vacuum leak when the radiator is trying to draw in coolant from the recovery tank. Don't ask how I know this
Thanks for the video. Since I don't live in a cold climate, I have never used antifreeze. I have never had any kind of problems running my vehicles like this. Now of course if I lived in a cold climate I would use antifreeze. That's why they call it antifreeze!😊
@@bentrider You're welcome 👍 Nice, yes running distilled water straight is fine during warm months or like you in warm climate. Water does not offer some of the benefits of coolant though like anti corrosion as well as water can evaporate easier
@@JonnyDIY thanks for the reply. As to your points. Corrosion does not occur any more with plain water than it does with antifreeze. I have proven that to myself over the years. The water actually looks cleaner after two or three years than my former antifreeze did. Think about it. In order for corrosion (which is rust), to occur you need to be adding oxygen. If there is no oxygen being added, then the only oxygen would be in the water and that will only do so much. Water should not evaporate that much. If you have a tight system, the only place it might escape would be in your coolant reservoir. I have never noticed loss of water due to evaporation. One benefit of running a water only system is that you do not have to deal with hazardous chemicals. You also do not have to pay for these hazardous chemicals.😀
Change of your thermostate means changing your radiator cap and you're good to go, if not its your radiator that needs to be flushed because it is clogged if not its your head gasket that's blown. These are the main causes of overheating or a swollen radiator hose. THIS IS THE ABSOLUTE TRUTH, don't let no funny guy tell you otherwise. 0
@@Snceday1 Yes cold or warm not hot because risk of burns. You can drain when warm you just want to make sure pressure has died down so when you remove cap coolant doesn't explode and spray all over. Towel over cap works well 👍
Vehicle being warm or cold will not help nor slow down the way coolant drains. It's not molasses, it's change in viscosity will be undetectable even if any changes occur.
Jonny - Would it be worth it to remove the fluid out of the overfill tank as well? (and replace it of course). The more bad fluid out, the better -- yes?
Yes, especially if its been quite a while since changing fluid. I show doing that here in this video at around 1:25 mark 👍 ua-cam.com/video/Kq6qjayD540/v-deo.html
Excellent. You just never want to do a full flush on a radiator that’s been obviously terribly neglected. Tried telling this to a friend & she wasn’t going to heed my advice. She ended up having to get a new radiator system.
@@RumintsPaiya could be radiator cap, could also be overheating from bad thermostat, bad radiator, water pump, cooling fans not working properly etc. Here's a video where I talk about those things ua-cam.com/video/ccXfDpdL5RQ/v-deo.htmlsi=4VKBlJi3zJZNOvKR
Same process just wont be able to run heat. So just run car to circulate and get any potential air pockets out. Can jack radiator end up or park on incline to help make bubbles come out faster too 👍
I have a 1999 Honda accord Lx. As soon as I start it up the temperature gauge goes from cold to hot within a minute. It is high but won’t overheat. I have changed the thermostat, coolant sensor, temperature sensor, drain and filled coolant but haven’t changed the thermostat temperature sender yet I have checked the water pump no drip from the bottom and the head gasket seems fine as I was driving for 30 minutes but car won’t overheat both radiator fan and AC fan turns on. Would you be able to shed some light on this issue
@@TonyP0425 definitely sounds like the sender to the gauge or gauge itself since it's saying its overheating within a minute. I would start with the sender to the gauge then the gauge itself if that doesn't fix 👍
Then probably full. Make sure came up to full operating temperature so thermostat opened. Keep an eye on level for next week to make sure doesn't need topping up 👍
@@nb9536 yes it can sometimes clog thermostat. I would remove and replace. It would either be that or quite possibly the thermostat was bad to begin with causing headgasket issue. Unless that was caused by something else (blown radiator, cooling fan failure etc)
I ask auto parts store to get the right coolant and they said it takes the green stuff and few months my radiator is leaking and when I check the radiator cap it said dexcool orange stuff auto parts lie
@@Rodsullivanik depending on mileage could just be time to replace radiator. And sometimes they just go out prematurely. I'd check all your hoses first too 👍
Hi jonny my 2002 mitsubishi galant is overheating really bad and making super loud hissing noise i looked at radiator and no fluid in it at all so i topped it off and now noticed behind firewall area and engine its leaking coolant maybe hoses are bad any suggestions cause the radiator and its hoses are fine nothing infront only in the back area its leaking
Try and pinpoint where its leaking from. A hose or line back there. Worst case scenario is it's leaking from headgasket. You can do a pressure test on cooling system to help find leak. In the mean time keep topped off with at least water and keep eye on temperature gauge until you can find leak. If you check on cold engine and first start up you can sometimes find leak easier
Awesome thank u Jonny sir. As long as I keep it filled with water and gauge doesn't go to high on hott I'm fine with driving it and it wouldn't ruin or completely destroy the engine ..it has not smoked as of yet just hissing really loud and air blowing loud when hott or pressured. Definitely a leak after I drove the car on full hott for about 20 min I know that was stupid of me
@@jasonnasiry yes should be fine short term. If started steaming and hissing making noise again, best to figure out problem soon as you can. If headgasket, it won't matter (just dont want to overheat and warp engine head), but hopefully it's something much simpler 🙏👍
U possibly might know which hose or line it might be my coworker said it possibly the heat core hoses . Not sure what hoses back there are connected with the radiator or coolant
I recently replaced the cap of the radiator on my 2003 Jeep, a day or two the radiator fan stopped working… me changing the cap couldn’t have cause it right? The coolant gets so hot that looks like boiling water.
Is it electric fan? Make sure you got the right radiator cap. They have different pressure ratings, if didn't get right one coolant can run a lot hotter
It was probably the fan clutch going out the whole time that was causing overheating issue and not radiator cap. Have the issues gone away with both replaced? If not check make sure psi on cap matches up with factory cap
@@JonnyDIY the car is in Mexico (my hometown) I went last week and took a few parts that were needed as maintenance radiator cap/gas filter/lug nuts… ect just to prevent any failures, the radiator fan is 1 year old.. when I noticed it was overheating I park it and let it cool off.. then I turn back on and watch the car run for approximately 10 minutes and the fan never came on causing the car temperature to rise . Fan should come on 1-3 minutes after running the car correct?
@@josej-h1471 yes fan should come on right away or once a little warmed up. I would replace the fan clutch, must have been a defective part only 1 year old.
After 4 ‘go ahead and’s’ in the first minute or so, my nerves gave in and I had to turn it off. Who knows how many more there were… Why do yanks say this sooo much?
Normaly your cooling fans will turn on as soon as the temperature gage has reached the middle and you step a bit on the gas and if and when the waterpump stops working check the relay or fuse, because the pump itself is a mechanical device that electronical turns on, I had a very bad waterpump for a decade that kept working as long as the relay was oké, as soon as you take your car to a garage the scam begins, mechanics are 25% honest, the rest of them are like lawyers, they let evil overshadow the good in their brains, in their world there are many dark sides, they always start talking about pressure gages and oil leaking into your coolant and change of colour of some liquid, as if your testing narcotics, don't believe this complicated nonsense, its a scam
I would do a complete flush and refill with universal green coolant or if its a Toyota Pink coolant, or if Honda blue. Or if European they call for special too. Heres a flush video I made ua-cam.com/video/uIrGzYAHy24/v-deo.htmlsi=nHzABI5AEB9VpV8w
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Thank You for watching, Subscribe & Click BELL Icon To Enable Notifications for NEW Upcoming Videos, Give a Thumbs up, Leave a Comment or Question, & Share, I'd appreciate it tremendously! :) Remember to Keep on, Doin it Yourself!
I didnt know radiator caps rubber can become damage. Thanks 😊
You're very welcome 👍
And gas caps as well!
I have a Honda City 2021 model (Asian spec.... In South Africa its a Ballade) anyways, i notice these radiator caps are really crap. or they seem crap. They dont have a good tight fit or they just dont see to have much of a press down when u open them, i wonder if they even seal well? My car has only dont 21000 kilometers but the climate here is a killer, extremely hot... humid weather. How will i know when to change my cap.... besides checking the rubber for strange cracks or warps....
Warped and cracked rubber seal on the cap will cause a vacuum leak when the radiator is trying to draw in coolant from the recovery tank. Don't ask how I know this
Thank you Jonny. I learnt so much about a car cooler and radiator
@@yandisamore8013 You're very welcome, happy to help 🙌👍
Thanks for the video. Since I don't live in a cold climate, I have never used antifreeze. I have never had any kind of problems running my vehicles like this. Now of course if I lived in a cold climate I would use antifreeze. That's why they call it antifreeze!😊
@@bentrider You're welcome 👍 Nice, yes running distilled water straight is fine during warm months or like you in warm climate. Water does not offer some of the benefits of coolant though like anti corrosion as well as water can evaporate easier
@@JonnyDIY thanks for the reply. As to your points. Corrosion does not occur any more with plain water than it does with antifreeze. I have proven that to myself over the years. The water actually looks cleaner after two or three years than my former antifreeze did. Think about it. In order for corrosion (which is rust), to occur you need to be adding oxygen. If there is no oxygen being added, then the only oxygen would be in the water and that will only do so much.
Water should not evaporate that much. If you have a tight system, the only place it might escape would be in your coolant reservoir. I have never noticed loss of water due to evaporation.
One benefit of running a water only system is that you do not have to deal with hazardous chemicals. You also do not have to pay for these hazardous chemicals.😀
@@bentrider awesome yeah I guess as long as the water comes out clean, and the car does fine on it, no need to hassle with coolant 👍
Good DIY tutorial, thank you! Gotta keep my 2016 Camry a few more years. 😊
You're welcome, happy to share. Nice that thing will most likely keep going forever! 👍
Change of your thermostate means changing your radiator cap and you're good to go, if not its your radiator that needs to be flushed because it is clogged if not its your head gasket that's blown. These are the main causes of overheating or a swollen radiator hose. THIS IS THE ABSOLUTE TRUTH, don't let no funny guy tell you otherwise. 0
@@edwardkowid506 yes, also don't forget water pump and cooling fans 👍
@@JonnyDIYyes, and also don’t forget fan relays temp control sensor
@@AI_Talks_About_The_Bible 🙌👍
thanks
very clear description of the process
@@manhalalrashdan You're welcome, happy to share 🙌👍
Always drain when engine is cold. Usually in the morning because it takes a min
@@Snceday1 Yes cold or warm not hot because risk of burns. You can drain when warm you just want to make sure pressure has died down so when you remove cap coolant doesn't explode and spray all over. Towel over cap works well 👍
Thank you so much 🙏👍👏
You're very welcome, happy to help! 🙌👍
Vehicle being warm or cold will not help nor slow down the way coolant drains. It's not molasses, it's change in viscosity will be undetectable even if any changes occur.
@@aaronmenchinger I love molasses! 💕🤣 lol I think the thermostat being open may help some 👍
Jonny - Would it be worth it to remove the fluid out of the overfill tank as well? (and replace it of course). The more bad fluid out, the better -- yes?
Yes, especially if its been quite a while since changing fluid. I show doing that here in this video at around 1:25 mark 👍
ua-cam.com/video/Kq6qjayD540/v-deo.html
Excellent. You just never want to do a full flush on a radiator that’s been obviously terribly neglected.
Tried telling this to a friend & she wasn’t going to heed my advice. She ended up having to get a new radiator system.
Thank you. Yes for sure! I never recommended a commercial type pressured flush especially on transmissions only drain and fill flushes 👍
Thank you for sharing
You're welcome, happy to help 👍
Thank you!
You're welcome, happy to help 👍
I will try to thank you
You're welcome, happy I could help 🙌👍
Ive literally always wondered if i could run my car with that cap off.
My dude has bigger balls than i do.
@@aaronbrown1638 yes perfectly safe to do while idling 👍
@JonnyDIY yeah? Well I run water 💧
In my radiator , nonstop , for 3 weeks now
And its been simply amazing.
😈
@@aaronbrown1638 Waters fine, distilled is best. Only need to change over for cold weather so doesn't freeze. And coolant has anti corrosives in it
@@JonnyDIY ty. You're like my older bro.
Just validating my auto sins with courage and bravery.
Have a great day
@@aaronbrown1638 you too! 🙌🤙
Santee Alley in DTLA is the spot for cheap hats. haha
Thanks boss 😊
You're welcome 🙌👍
How if radiator block, and water pressure flows back to the reserve tank,water drops out.
My car toyota camry sv40 has a problem with temperature is high and water from the radiator is boiling out .
@@RumintsPaiya could be radiator cap, could also be overheating from bad thermostat, bad radiator, water pump, cooling fans not working properly etc.
Here's a video where I talk about those things
ua-cam.com/video/ccXfDpdL5RQ/v-deo.htmlsi=4VKBlJi3zJZNOvKR
Bro, what to do if you have a heater core bypass?
Same process just wont be able to run heat. So just run car to circulate and get any potential air pockets out. Can jack radiator end up or park on incline to help make bubbles come out faster too 👍
Yes i had this in South Africa, less worrying about wet carpets in the car and fixing a heater matrix, so my mechanic just did a bypass.
What happens if air pockets remain the radiator system
Can lead to overheating, that's why you want to run it with cap off to let bubbles all escape 👍
Luv the hat !!
😆 my fair skin burns like tissue paper. But I got a new one recently with neck flap now like yours!
HI JOnny, do u need to turn the AC on with the heater or the heater only? can u turn it maybe half way (middle).
I usually just run the heater so it circulates coolant through whole system 👍
I have a 1999 Honda accord Lx. As soon as I start it up the temperature gauge goes from cold to hot within a minute. It is high but won’t overheat. I have changed the thermostat, coolant sensor, temperature sensor, drain and filled coolant but haven’t changed the thermostat temperature sender yet I have checked the water pump no drip from the bottom and the head gasket seems fine as I was driving for 30 minutes but car won’t overheat both radiator fan and AC fan turns on.
Would you be able to shed some light on this issue
@@TonyP0425 definitely sounds like the sender to the gauge or gauge itself since it's saying its overheating within a minute. I would start with the sender to the gauge then the gauge itself if that doesn't fix 👍
@@JonnyDIY thank you I will try this out once I go to auto part store get the parts
My hoses are collapse when cold and hot and the temperature is not cooling down until it's over heating and overheating only when driving
I would start by replacing the radiator cap, collapsed hose and overheating can both be caused by this 👍
What if I topped out the coolant just as u did and I had my car run for 15 min but my coolant didn’t go down like it didn’t cycle…?
Then probably full. Make sure came up to full operating temperature so thermostat opened. Keep an eye on level for next week to make sure doesn't need topping up 👍
I did subscribed
Thanks 🙌
After adding head gasket sealer my temperature gone up, can this clog thermostat or else. thx
@@nb9536 yes it can sometimes clog thermostat. I would remove and replace. It would either be that or quite possibly the thermostat was bad to begin with causing headgasket issue. Unless that was caused by something else (blown radiator, cooling fan failure etc)
I ask auto parts store to get the right coolant and they said it takes the green stuff and few months my radiator is leaking and when I check the radiator cap it said dexcool orange stuff auto parts lie
Green stuff is fine but should drain all old dexcool first. Probably just coincidence why it's leaking I'm thinking though
Yea I did it got only green stuff I flush out the dexcool
Now the radiator leaks whatever sometimes it doesn’t leak pure green is coming out of the radiator
@@Rodsullivanik depending on mileage could just be time to replace radiator. And sometimes they just go out prematurely. I'd check all your hoses first too 👍
@@JonnyDIY the hose is good and mileage 270648
Hi jonny my 2002 mitsubishi galant is overheating really bad and making super loud hissing noise i looked at radiator and no fluid in it at all so i topped it off and now noticed behind firewall area and engine its leaking coolant maybe hoses are bad any suggestions cause the radiator and its hoses are fine nothing infront only in the back area its leaking
Try and pinpoint where its leaking from. A hose or line back there. Worst case scenario is it's leaking from headgasket. You can do a pressure test on cooling system to help find leak. In the mean time keep topped off with at least water and keep eye on temperature gauge until you can find leak. If you check on cold engine and first start up you can sometimes find leak easier
Awesome thank u Jonny sir. As long as I keep it filled with water and gauge doesn't go to high on hott I'm fine with driving it and it wouldn't ruin or completely destroy the engine ..it has not smoked as of yet just hissing really loud and air blowing loud when hott or pressured. Definitely a leak after I drove the car on full hott for about 20 min I know that was stupid of me
@@jasonnasiry yes should be fine short term. If started steaming and hissing making noise again, best to figure out problem soon as you can. If headgasket, it won't matter (just dont want to overheat and warp engine head), but hopefully it's something much simpler 🙏👍
U possibly might know which hose or line it might be my coworker said it possibly the heat core hoses . Not sure what hoses back there are connected with the radiator or coolant
@@jasonnasiry yes heater hoses are back there, should be able to pinpoint it just by inspecting though 👍
I recently replaced the cap of the radiator on my 2003 Jeep, a day or two the radiator fan stopped working… me changing the cap couldn’t have cause it right? The coolant gets so hot that looks like boiling water.
Is it electric fan? Make sure you got the right radiator cap. They have different pressure ratings, if didn't get right one coolant can run a lot hotter
@@JonnyDIY I bought it at orally with rights model number .
It was probably the fan clutch going out the whole time that was causing overheating issue and not radiator cap. Have the issues gone away with both replaced? If not check make sure psi on cap matches up with factory cap
@@JonnyDIY the car is in Mexico (my hometown) I went last week and took a few parts that were needed as maintenance radiator cap/gas filter/lug nuts… ect just to prevent any failures, the radiator fan is 1 year old.. when I noticed it was overheating I park it and let it cool off.. then I turn back on and watch the car run for approximately 10 minutes and the fan never came on causing the car temperature to rise . Fan should come on 1-3 minutes after running the car correct?
@@josej-h1471 yes fan should come on right away or once a little warmed up. I would replace the fan clutch, must have been a defective part only 1 year old.
Used coolant just flush it in the canal, heheh
😆🤦♂️ noooo lol, easy to recycle
Newer cars don't have csp at top of radiator
Can still do same process, but use reservoir instead with vehicles without radiator caps and only reservoir caps 👍
What kind of radiator cap in my Toyota Yaris 2008 1.3 liters? 1.1 bar or 0.9 bar? Thanks a lot
@@Excalibur0631 I believe 1.1 bar for that vehicle. I recommend getting the OEM factory cap from dealer or online factory parts supplier 👍
After 4 ‘go ahead and’s’ in the first minute or so, my nerves gave in and I had to turn it off. Who knows how many more there were… Why do yanks say this sooo much?
@@renhoek it's part of our culture yo 😄🤙 I'm sure there's turns of phrase where you're from as well that are common, just like anywhere in the world
Tip it down the drain
Always recycle old coolant 👍
Normaly your cooling fans will turn on as soon as the temperature gage has reached the middle and you step a bit on the gas and if and when the waterpump stops working check the relay or fuse, because the pump itself is a mechanical device that electronical turns on, I had a very bad waterpump for a decade that kept working as long as the relay was oké, as soon as you take your car to a garage the scam begins, mechanics are 25% honest, the rest of them are like lawyers, they let evil overshadow the good in their brains, in their world there are many dark sides, they always start talking about pressure gages and oil leaking into your coolant and change of colour of some liquid, as if your testing narcotics, don't believe this complicated nonsense, its a scam
My water looks red orange
I would do a complete flush and refill with universal green coolant or if its a Toyota Pink coolant, or if Honda blue. Or if European they call for special too.
Heres a flush video I made
ua-cam.com/video/uIrGzYAHy24/v-deo.htmlsi=nHzABI5AEB9VpV8w