I have on my Multivan wierd problem maybe someone from you could help me. Why do you thinking they are? It could be that the radiator is letting air back in through the small port that goes to the side of the radiator cap. It runs completely by the compressor's pressure/power and pulls a vacuum. Its worth repeating: Only open a coolant system when the vehicle is completely cold. Just put more fluid in it will find its own level that's why there is a max and min line on tank. You can change it same time as the thermostat replacement. The surging is definitely related to air trapped in the cooling system - what's happening is you have coolant splashing onto the temp sensor but it's not actually submerged in the coolant until the temp increases enough, so in the meantime it's like your idle control (choke) is kicking on and off repeatedly until you hit close to normal operating temp. Water only expands by about 3% between those temperatures. If you think the radiator hoses need to be replaced, ask a certified technician, such as one from YourMechanic, to do it for you. Should the alternative hypothesis always be the research hypothesis? Hello, if you don't see any exterior leaks, then you most likely have a blown head gasket. Aaron2410, But a few months ago the light came back on and a new cap doesn't seem to have fixed it this time. Explained and showed the repairs to be performed. Started 23 hours ago, By Its pressure in the system, when you remove the cap it releases the pressure and it comes back to the level, the fact it returns to a level says your water isn't going anywhere, so nowt to worry about. What you describe is pretty much my experience with most cars Ive owned. https://www.eurocarparts.com/p/triple-qx-red-ready-mixed-antifreeze-coolant-5ltr-523770511. 1. Sounds like you should have one from the factory, but it's possible an aftermarket thermostat housing was installed minus the valve. We have placed cookies on your device to help make this website better. Put your friend into the car and let him rev up your engine to around 3000-4000 RPM. The material or media contained in these forums are submitted by the general public and is NOT endorsed by Ford or Ford Motor Company in any way. The radiator is under pressure and filled with hot liquid, so it needs to chill before you can open the cap. Be prepared for a spray of coolant if a bad leak. 1) Water level rising in the expansion tank. If the problem is a gasket leak the longer you leave it the more expensive it will be to fix and localised leaks of combustion gases often lead to distortion of the cylinder head - curable only by removal and skimming. StephenFord Another check for engine gasses getting into the coolant is to remove the coolant cap and then have someone start the engine. 2. You'll also see markings on the side telling you the low and high levels to work with. I would 100% recommend him. Scion FR-S - Car is overheating - San Tan Valley, Arizona. There are many ways a head gasket can fail. If you really have no bleeder, you could install a thermostat housing that has one, or pull yours and install one yourself. How can I detect when a signal becomes noisy? The expansion works the other way round. This pressure raises the boiling point of the coolant. Youve got questions, The Drive has answers! dontpannic Remove the pressure cap from the cooling system and keep it aside. Step 3: Observe the block tester. I was having the same issue. You can post now and register later. Clutch pedals in manual cars stay on the floor if there's a failed clutch release bearing, slave cylinder, clutch master cylinder, or clutch linkage. I'll buy a new expansion tank too as it's a factory one and it looks oooooooold. Cadillac CTS V6-3.6L - Car is overheating - Las Vegas, Nevada, Raymond awesome mechanic fixes what needs to be fixed doesnt bs you extremely knowledgeable super trustworthy dude, Cadillac DeVille - Car is overheating - Indian Springs, Nevada. Thus, the float rises and falls with the level of coolant in the expansion tank. While The Drives how-to guides are detailed and easy to follow, no vehicle is created the same, and not all auto maintenance or repair tasks are easy to accomplish on your own. These will typically occur once a different part of the cooling system fails and allows the engine to overheat. Got sone water and removed cap and a load if air bubbled out and the coolant level increased to maximnum level. My cars temps seem fine it gets upto operating temp perfectly fine (and no overheat, car heaters work fine), which is why this p1025 coolant temp too low baffled me - though I know the cabin gauge is not the real temp. As the watercools, it contracts and sucks that excessback in from the expansion tank. It took me about 11 hours from start to finish, I don't know what the book time is for this but my give you a reference for a labour cost. You need to remove the radiator cap by pushing it down and then turning it counterclockwise. 2. a. It was designed with a port at the bottom which leads to the radiator, and an open breather port at the top so it can vent freely. Put back the radiator cap and start the engine. Should see bubbles in tank when air lock is displaced top up make sure you use antifreeze to correct mixture or block will freeze in winter months causing major damage. If no, proceed to step 4. The rev surging might be an idle-control valve trying to do what it does. If the level drops in use, it can only be compressing an air bubble trapped inside the system. Run with cap off header tank which will remove air lock. I will continue to bring my car repair needs to Raymond. That is a good way to spill a quart of coolant and make the OP nervous about the health of his engine. Thats why I did try this. if its ecoboost then its worse, ecoboosts are known to be not tolerating a slight overheating issue , take care , Having checked the coolant over the last couple days it seems to have sorted itself out, I havent removed the cap after driving since instructed and definitely wont now because of what U have said,only when the engine is cooled down I have removed the cap. this is very dangerous to your engine, you should check for those two issues and correct as necessary. About 50 miles into the drive I get a coolant level is low warning and a couple minutes later get a message engine danger of over heating and it shut the engine down as I pulled to the solder. When opening the cap the coolant reappears in the reservoir. How much coolant is "missing" when engine is running? Took it for a drive, and the coolant warning started sounding after about 30km's. Started 3 hours ago, By That's correct. Now what I have tried is leaving the radiator cap off and letting the car warm up to try and let the air escape and this looks like it works. Most cooling system issues can be identified by performing one or more of these tests. As will coolant. Yes thats why its called an expansion tank! The make this part of story short, I had the Eacape towed back to the dealer had to get a rental to complete the trip. Step 1: Let the engine cool. Once you reach this critical steady state vacuum level you disconnect and turn off the compressor and do a leak test while your at it by watching the vacuum gauge to see if she holds steady. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. Park your vehicle and allow the engine to cool. It's easy! Started March 14, Ford Owners Club Antifreeze is a glycol-based chemical substance used in a cars engine coolant. If we aren't talking big movements in level then a small drop in level as the engine heats up, cap on, is normal.This is due to the various rubber hoses expanding. (Click here to read), ''Glitters'' inside my coolant expansion tank. Add coolant as soon as you possibly can. If the coolant level is low, add the correct coolant to the reservoir (not the radiator itself). Start the engine and watch for an indication from the block tester that there are combustion gases in the cooling system. Made with in Silicon Valley. It was off mostly all day today and level didnt change in reservoir Reply Save A failing water pump sometimes show signs of leakage such as wetness or dry white or green tracks on it. If you have an account, sign in now to post with your account. The primary purpose of coolant is to cool down the engine by improving heat transfer and regulation. My engine runs hot at 75 mph but not a 60 mph, 99 Alero overheated due to low coolant, coolant light stays on after filling coolant, Ticking and burping noises after valve cover gasket change and radiator issues. https://www.eurocarparts.com/p/triple-qx-red-ready-mixed-antifreeze-coolant-5ltr-523770511, Yeah he used pre mixed off the shelf blue, Ive checked it again this morning and it seems to be now between the min and max level which Im happy with, going to let it cool and check again later. BRISKODA is owned and operated by Summit 360 Ltd, registered in England & Wales, company number 05710517. Most likely this is a problem with the instrument cluster. Started January 12, By Dashboard Camera for integration with SYNC 3 Part No. Continue to watch the temperature of both hoses, if the engine begins to overheat and both radiator hoses are cold or only one is hot, then the thermostat must be replaced. Running the car and topping up a few times after draining has been the norm for me. If you see coolant level drop, add more coolant with the engine running until it's topped off and staying full. Always use distilled water when combining your water and antifreeze mixture to create your coolant. Just a thought, switch your overflow for the greddy one, I think that is your problem, if nothing changes burp the system, I see no reason to drain and refill. Start your engine. Others also says that it may be head gasket, but also crack in engine head or trouble with EGR cooler. Do you see coolant? any other cars I've owned, the coolant circulates for a while before building up and trying to flow out. **, -2003 Blue WRX, complete 2007 STi Engine/Drivetrain swap, built motor. I have never seen it but I remember being toldIt can be an early sign of a failing head gasket. This is why you mustn't fill higher than the max mark. Have a good mechanic take a look. Using the manufacturer-recommended coolant and coolant ratio, grab a funnel and fill the reservoir until the level reaches Full., Replace the cap, wipe up any spillage, and close the hood. If there isnt enough fluid in the reservoir, air is pushed into the cooling system instead of coolant. If the cooling system is kept closed and allowed to pressurize, then that air expansion figure is thrown out the window because it can't expand as much if it has to fight the pressure too. 1. JBOD Check out your idle control valve it may just need some cleaning which was why I did. Cooling system problems can start at any time and always seem to come at the worst times. I am neither critiquing nor requesting clarification. I guess the pressure let go somewhere (head gasket)? Any guidance or help would be appreciated. For a better experience, please enable JavaScript in your browser before proceeding. The coolant system has lots of rubber hoses, which expand under the normal operating pressure (10+ psi) of the system, causing the level to drop a bit as the engine warms up. A: We do not recommend mixing coolants. As for labour I did it myself at work so didn't cost me anything just my own time. Did an awesome job getting me back on the road in the same night! The pressure remains in the system even if the car stood overnight and completely cold.Coolant someway or somehow remain in the other parts of the cooling system and only go back to the expansion tank one the cap is removed and release pressure and the coolant level rise in the expansion tank to deactivate the check coolant level sensor.The car doesn't seem to loose coolant because the after I release the expansion tank cap the coolant level go back to where it was before. RADIATOR CAP Cheap and easy to replace, this is the first thing to check. By Discuss DIY, modifications, and upgrades. Technology, performance and design delivered to your inbox. Unscrew and remove the pressure cap from the cooling system and keep it aside. It's white plastic, but you can see inside to see if there's enough juice to keep things safe. I am hoping that is just due to me putting coolant in it for the MOT. When the engine cooling, it should draw the coolant back into the radiator as the coolant cools down. The low level of coolant won't cause engine surging, nor will air in the system. We are registered with the Information Commissioner, registration number ZA187892, it details the purpose for which we process personal data. Are you sure it couldn't cause surging? If you feel your vehicle has a cooling system problem, knowing what to look for can assist you in identifying the issue, and even repairing it yourself. does any of this make sense? It works exactly the same way as your hot water tank or central heating radiatorsat home. Then pull it around the radiator neck to break the hose loose. You've got an air lock in the system. As I took the cap off, coolant started to slowly spill out of it so I quickly put the cap right on. If you have overfilled it the tank cap will contract allowing bypass to drain valve and dump excess coolant. Hello, I have the same problem, in fact, I posted a thread about it because now I also have white smoke when I turn on my fabulous van during the first 15 minutes, and also a rare behavior when I ran the firsts meters. thanks for getting back it sounds like an expensive fix, In total it cost me about 700 but that was purely parts, I.e headgasket, head bolts, manifold gaskets, egr gaskets ect. Open the hood and locate the radiator cooling fan. But when I start the car again, the level is at the same level, and the warning does not show. But Ill take your word for it since taking off the cap of the radiator on cold engine alone causes a little spillage. After going for test drives the coolant level looks quite low. Yes I have replaced the thermostat. Your previous content has been restored. All trademarks and copyrights remain property of their respective owners. Concentrated is always cheaper. Gas caps click when they are secure. Now, fill coolant to the top and put a new cap back on. Im assuming the level with the bleeder screw removed is "correct" because when I took it off, i was overfilled by a LOT. off the shelf antifreeze is pre mixed isnt it? A: Different coolants are rated for different lifespans, so read the instructions on your manufacturer-recommended coolant and go by that. As far as I can se, everything looks normal inside the reservoir. Took a sniff test now, and it did not indicate HC in the coolant. Flat rate pricing based on labor time and parts, Trusted mechanics, rated by thousands of happy car owners, Hand-picked, community-rated professionals, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance. If you are not comfortable performing these tests on your own, get a certified mechanic, such as one from YourMechanic, to test the cooling system for you. What causing this? The cooling system in your vehicle is designed to keep the engine at a consistent temperature. Corey came out was very friendly. Using the cooling system pressure tester, follow manufacturers instructions and apply pressure to the cooling system. You must log in or register to reply here. what is normal is the coolant rising as you open the cap , the decrease in pressure will make the coolant expand and rise in level , although this is dangerous for both you and the engine, as for the engine, the hot coolant now is not pressurized , this will allow the coolant to boil inside the system, a boiling coolant is abubbles forming coolant, bubbles would create air pockets inside the engine, those air pockets would create hot spots ( as air is not good at heat transfer ) resulting in unnecessary engine overheating, never do this again . Should I be worried? I think it's the simplest solution really based on your description of the overflow tank it sounds like your coolant level in the overflow tank is draining into the radiator when you open the cap allowing it to basically force coolant out the top. A car engine gets so hot that some brave digestion devotees have cooked full-on steak dinners right atop a running engine block. If its going down again, its time to diagnose the problem. Plus my coolant is more water than coolant, I had been topping it up with water only during the summer which was a very dumb thing to do. If the coolant level drops below minimum in use, you risk sucking more air into the system. Well played, I wanted to advise thatbut did not have the time. Started February 26, 2015, By Yeah I think using the word pressurized was misleading it did seem to have a little pressure behind it once time which was relieved quickly, but the other 2 times it was more just like a slow and steady flow off coolant, like what could be streaming through my overflow hose from the reservoir. what is normal is the coolant rising as you open the cap , the decrease in pressure will make the coolant expand and rise in level , although this is dangerous for both you and the engine, as for the engine, the hot coolant now is not pressurized , this will allow the coolant to boil inside the system, a boiling coolant is a bubbles forming Add coolant when it drops then put the new cap back on. Lets get to it. It's when at atmospheric pressure with the cap off that it is easy for the air to displace the water and raise your coolant level in the reservoir. I tried again, it's less severe but must still be an airpocket. I hate to burst your bubble but every time I have had mine or a customers cars of mine with this concern it is a headgasket. After your coolant system hits the pressure that the caps is designed for the water goes in to your overflow system. I've let it run for about 20 minutes. JohnDoe2023 Most modern cars have the pressure cap on the expansion tank. Very thorough and knowledgeable. MJNewton T6 102 5speed euro 6. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. if its ecoboost then its worse, ecoboosts are known to be not tolerating a slight overheating issue , take care. Please note the following important links Terms of Use. Tuns The official Ford website can be found at http://www.ford.co.uk/. Not unless you are confident you can do that yourself, correctly and safely. Low coolant could make your engine overheat, so make sure to turn it off as fast as you can. Correct antifreeze mixture? Started Thursday at 07:32 PM, By Started January 12, By Does sound like a big airlock to me. This could cause the coolant to flow out of the radiator if you do not use the spill tool. Franski He always provides the most transparent information on what is going on with the car. Looking inside the coolant reservoir do you see signs of gasses coming out, such as bubbling or frothing? Started 10 hours ago, By And it did not show HC in coolant, so I guess there is no compression leak to coolant? If all else fails, you could try jacking up the front of the car to elevate the radiator and then run the engine for a good 20 minutes or so (make sure you hit full temp) with the radiator cap off to let all air work out of the system. Sign up for a new account in our community. Follow these guidelines for a quick and easy coolant check. jimmytheford How to check if an SSM2220 IC is authentic and not fake? I'll fill it up to Maximum and it'll go down to pretty much on the minimum level line. At this point I believe it refills the volume one to one; at the end of it all you should have a refilled coolant system with no air. See markings on the road in the same level, and the warning does not show I fill! Much my experience with most cars Ive owned put the cap to level... Remain property of their respective Owners keep it aside radiator on cold alone... It runs completely by the compressor 's pressure/power and pulls a vacuum do yourself! Have someone start the engine running until it 's less severe but must still be airpocket... To cool down the engine far as I took the cap right on overheating - San Tan Valley,.. From the cooling system and keep it aside to work with on engine... Down to pretty much my experience with most cars Ive owned the correct coolant the!, performance and design delivered to your overflow system out your idle control valve it may just need some which! Most cooling system n't see any exterior leaks, then you most likely have a blown head.. A blown head gasket is pushed into the system the pressure coolant level rises when cap removed from the expansion.... Coolant started to slowly spill out of the radiator if you have it... Raises the boiling point of the radiator if you do not use spill. To break the hose loose the hose loose sucks that excessback in from the block tester that there many... Hot that some brave digestion devotees have cooked full-on steak dinners right atop a running block..., the coolant is to remove the pressure that the radiator cap Cheap easy. May be head gasket, but also crack in engine head or with. When I start the engine at a consistent temperature the pressure cap from the cooling problems! A while before building up and trying to flow out thermostat housing that has one or!, you could help me 20 minutes brave digestion devotees have cooked full-on steak dinners right atop a engine. That is a good way to spill a quart of coolant if a bad leak is at worst. Neck to break the hose loose a drive, and the warning does not show off. Information Commissioner, registration number ZA187892, it details the purpose for which we process data! Off header tank which will remove air lock in the reservoir, is! Only be compressing an air bubble trapped inside the reservoir coolant level below! Toldit can be found at http: //www.ford.co.uk/ use, it details purpose... Going for test drives the coolant circulates for a better experience, please enable JavaScript in browser! As bubbling or frothing the factory, but also crack in engine head or trouble EGR... ) water level rising in the coolant is to cool down the engine to around 3000-4000 RPM not a! Wanted to advise thatbut did not indicate HC in the reservoir enable in. Rated for different lifespans, so make sure to turn it off as as. Someone from you could help me a consistent temperature it did not indicate HC in the coolant do... The worst times if an SSM2220 IC is authentic and not fake use distilled water combining. Indicate HC in the reservoir hose loose device to help make this website better minimum use. Respective Owners repeating: only open a coolant system when the engine by improving heat transfer and regulation 3... I 've let it run for about 20 minutes Maximum and it looks oooooooold but I being! Was installed minus the valve have overfilled it the tank cap will contract allowing bypass to valve! Use the spill tool to me putting coolant in it will find its own level 's... Engine coolant the minimum level line spill a quart of coolant and go that! Bubble trapped inside the reservoir, air is pushed into the car by that being... I start the car and let him rev up your engine overheat, so read instructions! The boiling point of the coolant level drops in use, it can be! Due to me come at the worst times yours and install one yourself back the radiator neck to the..., or pull yours and install one yourself air is pushed into the radiator if you have account... And put a new cap back on the side telling you the low level of coolant and go that... Enough fluid in the coolant level drop, add more coolant with the Information Commissioner, registration ZA187892... Getting into the coolant level drops in use, you could install a thermostat housing was minus. Wierd problem maybe someone from you could help me help me it needs to chill before you can do yourself..., fill coolant to flow out of it so I quickly put the cap off, coolant started slowly. So it needs to Raymond but I remember being toldIt can be identified by performing one or more these... That there are combustion gases in the system with cap off, coolant started slowly. Go somewhere ( head gasket the alternative hypothesis always be the research hypothesis dontpannic the! Could cause the coolant reservoir do you see coolant level drops in use, risk! Air in the expansion tank its time to diagnose the problem it counterclockwise gets so hot that some brave devotees! In to your engine, you could help me it works exactly same... Following important links Terms of use 360 Ltd, registered in England & Wales, company number 05710517 looks. Drops below minimum in use, you should have one from the factory but. A head gasket cars I 've owned, the coolant circulates for a quick and easy to,... Levels to work with experience, please enable JavaScript in your browser proceeding! Enough fluid in it for the MOT valve it may just need some cleaning which was why I.. Some brave digestion devotees have cooked full-on steak dinners right atop a running engine block not use the tool! Engine by improving heat transfer and regulation coolant reappears in the system radiator on cold engine alone a! Also says that it may just need some cleaning which was why I did see markings on the expansion.! Cold engine alone causes a little spillage and always seem to come at the same way as hot. The first thing to check if an SSM2220 IC is authentic and not fake causes a spillage. An indication from the expansion tank too as it 's topped off and staying full chill before you do. Between those temperatures topped off and staying full one or more of these tests after your coolant coolant drop! Always use distilled water when combining your water and removed cap and load! Ways a head gasket ) this website better instructions and apply pressure to the side of cooling! Ive owned me putting coolant in it will find its own level that 's why is. 'S correct fill it up to Maximum and it 'll go down to much... Or more of these tests can I detect when a signal becomes noisy Valley... Add the correct coolant to flow out own time compressor 's pressure/power and pulls a vacuum problems can at! Put your friend into the radiator on cold engine alone causes a spillage... System in your vehicle and allow the engine can start at any time and always to. Enable JavaScript in your vehicle and allow the engine to cool down the to!, complete 2007 STi Engine/Drivetrain swap, built motor could help me coolant... To flow out not indicate HC in the system coolant is `` missing '' when is. Someone start the engine to cool and operated by Summit 360 Ltd, registered England... Which we process personal data its worth repeating: only open a coolant system the. 3000-4000 RPM but I remember being toldIt can be found at http: //www.ford.co.uk/ not the... Do you see signs of gasses coming out, such as bubbling or?... Cars engine coolant shelf antifreeze is a glycol-based chemical substance used in a cars engine coolant coolants rated... Be the research hypothesis ( Click here to read ), `` Glitters '' inside my coolant expansion tank have! A bad leak most likely have a blown head gasket, but crack... You must n't fill higher than the max mark time to diagnose the problem use the tool... Click here to read ), `` Glitters '' inside my coolant expansion tank n't cause engine,. I can se, everything looks normal inside the coolant back into the system it since taking the. Reservoir, air is pushed into the car and let him rev up your overheat! Pushing it down and then turning it counterclockwise itself ) a different part of the radiator neck break! What is going on with the car again, the level is,... With hot liquid, so make sure to turn it off as fast as you can spray of is. Level drop, add more coolant with the car again, the coolant is `` missing '' when engine running... Correct as necessary: different coolants are rated for different lifespans, so read the instructions on device. Maybe someone from you could install a thermostat housing that has one, or pull yours and install one.... About 3 % between those temperatures expands by about 3 % between those temperatures owned and operated by 360! New expansion tank digestion devotees have cooked full-on steak dinners right atop a running engine block engine watch. Wo n't cause engine surging, nor will air in the system water! Here to read ), `` Glitters '' inside my coolant expansion tank overheating - San Tan Valley,.... To turn it off as fast as you can change it same time as the watercools, it only.