The coolant shouldn't be flowing because the coolant has not reached enough temperature to cause the thermostat to open. Make sure the tank's cap is working properly and venting. Wait for the radiator and engine to cool. There could be something wrong in the circuit or the sensor itself. Some engines use a rubber hose, or a fixed steel tube. If it passes, then it may need a radiator. Question: I have a 96 Mustang. I am convinced it is a thermostat issue but no one will believe me as my vehicle is not showing any other faults in a diagnostic test. Is it overheating? If the thermostat has been in service for a few years, it's better to replace it, since it'll fail sooner or later. Question: Why does my low coolant light stay on? The core may be clogged. Checked coolant pressure, no leaks, radiator holding pressure. Without a properly functioning water pump, your engine will not be able to dissipate the heat it produces as it runs, causing the vehicle to overheat. But, when i turn on the air condition it stops, I turn off the air & the heat will stop for a few minutes or more. Please see our. I thought about it and the only other change was the thermostat I bought one from the local parts house. Answer: Just keep an eye on the temperature gauge. What is next plan of attack Firstly, I would recommend checking the water pump for leaks and testing it to make sure it is flowing correctly. You probably can do it if you have the repair manual for your model. To drive the nail all the way in, the water pump circulates coolant throughout the engine. Thumbs up & Pinned. Also, a stuck thermostat or clogged radiator will cause your engine to overheat. Anonymous, (2018 Honda Civic LX 1.5-L 4 Cyl turbo) Touch the upper radiator hose and lower radiator hose, so that you can feel the hoses' temperature. If the pump is run by a drive belt, check the belt's tension as well. Answer: There could be air in the system. Check your vehicle repair manual for the thermostat operating range, and make sure you have the correct one for your application. The temperature gauge will get just under the red mark and then drop down to the normal range. Noticed car overheated when the ac was on, the ac would automatically shut itself off and turn back on when start to drive. After replacing it, make sure to bleed the cooling system, otherwise, there's a change air pockets will create hot spots that will lead to overheating. Your vehicle could have one of two power steering systems. This other post may help: Question: How do I know what thermostat should I use for a 2008 Chrysler PT Cruiser? If it keeps running, a relay may be stuck. Less common issues, but happen: Do you know the engine is actually overheating? A failed thermostat will prevent the engine from operating within its ideal temperature range and affect its performance. Shut off the engine and refer to the section, after the next procedure, How Do I Test a Car Thermostat. This means the thermostat has opened and hot coolant is flowing through the radiator hose. AC works fine. Make sure there no debris covering the front of the radiator. Instead we’d advise you to ease the car down after you’ve installed a new water pump, refill the cooling system, lift the car back up and manually rotate the pump about ten times, all the while making sure it rotates freely. Then, remove the thermostat from the pot and check that the thermostat gradually closes completely. This ideal engine-operating temperature accomplishes several goals: It helps engine oil to lubricate efficiently and to remove harmful deposits. If you want, you can do a more accurate test. Then, get a temperature reading of the upper radiator hose two to three inches away from the thermostat housing. You can buy one at your local auto parts store or online. Already changed the waterpump and than the thermostat but now its leaking antifreeze from the 2 bolts that are on the thermostat. Answer: Without a thermostat, the engine will never reach the correct operating temperature. Question: My 2008 Ford Explorer is still overheating after changing the whole radiator and water system. The coolant begins to flow at this point because it has reached a high enough temperature to cause the thermostat to open. After that, I noticed my fans would run really high with the ac on. It was a pain and it still doesn't get great reception, but better than it was." I replaced the thermostat with a Motorcraft and all good. The Bullnose Mercedes is a real truck. I drove home unhooked and drove 130kms to the event with no float no problems. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. The bearing or impeller might be worn and not working constantly. Could tjis be my thermostat going or gone bad? Place a kitchen pot on a stove. If it wasn’t running at that time and water just got in the exhaust system, you should be fine after a while. Visually inspect the thermostat. My car has 127000 miles. You can check this by looking through the radiator filler neck. If the coolant is below a preset temperature, the coolant is directed back to the engine. Do I have to replace the thermostat? Have the radiator checked as well, it may be clogging, preventing proper coolant flow. But, if you feel too much heat coming through the vents though, a heating valve must be leaking. In any case, when the thermostat is closed, coolant is directed to this bypass and channeled back to the water pump, which sends the coolant back into the engine without being cooled by the radiator. Even more, they'll help you save your engine—and your wallet—from damage. Modern cars have an increasing amount of sensors. But it can also happen with a system leak, old coolant, low level coolant. Most car shops wood suggest replacing the thermostat as good measure when replacing the upper radiator hose specially or doing some work on the cooling system, even though there's no service interval for the thermostat. Question: What is the problem when very hot air is blowing on the hot or cool dial? If the water pump broke, you could change it without a big intervention. Go to your local auto parts store or order online. They only take a few minutes and will help you find the cause of an unusual engine operating temperature. OK, I have had fifty years of experience as a gear head working on cars and building high performance motors. It should be in the closed position. What could cause an early 2000s Jeep to not heat properly? Question: I have a 2005 Chevy Express 1500. In that case, water may have been sucked in from the intake into the engine (check the air filter for dampness). Or head gasket leak? If the radiator cap is not accessible, or you don't see the cap, go to the next troubleshooting procedure: Checking Coolant Temperature. With an overheating engine problem, it's a good idea to have an assistant behind the wheel to shut off the engine if the temperature reaches an unsafe level while testing. Question: I have a 2005 Chrysler 300 Touring. Does the engine, hoses, radiator (top, bottom) feel hot when gauge goes to red? An overheating engine can cause more problems especially if you let it go too long and end end … If your thermostat deviates from the specifications, or the thermostat mechanical action deviates from the one described above, replace it. An overheating engine can cause more problems especially if you let it go too long and end end up cracking your block. It reduces emissions and gas consumption, and contributes to engine performance. I have a Ford fiesta ghia 2005, about 100,000 km on the clock. What could the issue be? When proper operating temperature is achieved, the thermostat will open, allowing coolant to properly diapers and keep the engine from experiencing extreme temperatures. 5 – Bad Water Pump is Leaking or Not Spinning the Impeller. Usually, you'll start to notice that your car begins to overheat soon after you fire up the engine, or the temperature gauge on your dashboard remains below its normal temperature point. Coolant is a mix of water and anti-freeze (usually a 50-50 mix). The temperature warning light came off and I was able to turn the car off straight away, we let it cool and the mechanic took it away and replaced the radiator. Because it is placed deep in the car engine and you can not touch it easily. A bad thermostat, cooling fan, water pump can cause the problem. Some theremostat-housing come as a single assembly, so you need to replace them together. You need to track down the source. Wait about 10 minutes and repeat step 3. Thanks to Aladdins Cave for tweeting it. As a fulltime RVer, I wanted to share my top 10 reasons I love living this lifestyle. When proper operating temperature is achieved, the thermostat will open, allowing coolant to properly diapers and keep the engine from experiencing extreme temperatures. I have a 2012 F150 with a 5.0 engine. The heater core might be clogged. Remove the radiator cap, fire up the engine and let it idle. A simple way it to check the upper radiator hose. In that case, water may have been sucked in from the intake into the engine (check the air filter for dampness). If it doesn't but the starter motor is engaging probably there's damage to the head gasket or engine. For a while the car was difficult to turn on, but once it was on I could drive it long distances with no loss in power and nothing weird on the temperature gauge. A mix of distilled water and antifreeze, also called ethylene glycol, is pumped through passages in the cylinder head and engine block where it draws off the engine’s heat. Question: I have a Toyota 80 series Cruiser. The most common causes include a faulty spark plug, clogged fuel injectors, or even an intake valve leak. If you fail to notice and keep your engine running, in a matter of minutes your engine self-destructs. Question: Can I drive a short distance with a faulty thermostat? Answer: If the head gasket is leaking coolant, it is not circulating properly in the system. Take a look at our BMW thermostat collection today! Idk, I replaced it the same day and it worked fine for about 1 days, I was driving for about 20 mins and then noticed that the temp. I purchased the 32 dollar bottle. You just want to monitor the water's temperature. He has certifications in automation and control technology. Based on your description and the work you’ve already had done, the water pump may be the next component to look at. If it gets hot at all times, then it may have a clogged radiator, or more commonly a leaking head gasket. Engine overheating. But first, you need to take a quick look at how it operates so that you understand the logic behind these simple tests. This article discusses control relay switch chattering or rapid, repeated clicking noises, their cause, meaning, and repair. It was bad so I replaced it. This is usually the problem. However, if the coolant begins to flow but the engine still overheats, you have another problem affecting the cooling system. Anonymous, (2018 Honda Civic LX 1.5-L 4 Cyl turbo) Answer: There could be a problem with the water pump. Dan Ferrell writes about do-it-yourself car maintenance and repair. I have a 2012 F150 with a 5.0 engine. the foreman just remove the thermostat and now my car is running without thermostat. There could be several reasons for this. Answer: There could be several reasons for an engine to overheat. Or maybe coincidental. But how do you know it is the thermostat acting up? Every time temperature is abit cold the engine will just die. I did however notice there seemed to be a lot of pressure building up in the coolant reservoir (there is no radiator cap), and the radiator fans run on and off all the time (sometimes only turning on for a second or 2). As for the vehicle still overheating, if all of the parts you have replaced are working fine, then you may have an air flow issue through the radiator. Take a look at this guide, it tells you how to check the thermostat. Replace the thermostat. This is an honest review of Plastidip for car wheels. Coolant leak. Otherwise, check that the fan for the condenser is working fine when turning the AC. Car detailing is very different from car washing. My question is: Could this build up in pressure be due to a faulty thermostat? If it doesn't crank, remove the spark plugs and see if it cranks. I have an ongoing love affair with my VW Golf TDI. After all, some of these same symptoms may come from a failing water pump, radiator, fan, or even a loose drive belt. Answer: You probably need to replace the thermostat. So, it's not a good idea to run an engine without a thermostat. Thus, the thermostat has an impact on your engine's health and longevity. Can you please help? Air snorkel and solenoids double checked seated properly. Replaced thermostat. Depends how submerged the car was. 2010 Chevy impala overheating. If coolant doesn't flow, you'll notice the temperature on the upper radiator hose remaining about the same, and the temperature gauge on your dashboard getting close to the red zone. And make sure the blower is working properly. You need to know how to keep your once-new RV in good condition for that day when you decide to sell it or trade it in on another one. Wait for the thermostat to open completely and make a note of the temperature. Coz I'm out of ideas unless maybe the housing on the car???? Probably the bars seal won't cut it. Because it is placed deep in the car engine and you can not touch it easily. If it wasn’t running at that time and water just got in the exhaust system, you should be fine after a while. Once you've found the thermostat, perform one of two simple tests: If you have access to the radiator cap on your car, use the following troubleshooting procedure: Checking Coolant Flow. My car has an automatic transmission. Inside this housing resides the thermostat. For this test, you can use a needle type, kitchen thermometer or an infrared thermometer type. Coolant uses the housing as a flow-connecting point into the radiator. It shakes the ground and carves up the roads. Haven’t heard of this same issue on Expeditions. In any case, when the thermostat is closed, coolant is directed to this bypass and channeled back to the water pump, which sends the coolant back into the engine without being cooled by the radiator. It is a pretty hefty DIY project, but very enjoyable if you're patient and thorough. It seems like there has always been a pressure problem, with the burst radiator and then pipe. 5 – Bad Water Pump is Leaking or Not Spinning the Impeller. If you need more help, the best way is to follow the instructions in the repair manual for your particular vehicle make and model. Dan Ferrell (author) on February 01, 2018: It seems the computer is acting on faulty information from a sensor, possibly the coolant sensor. Check the thermostat to make sure it's working or not working. ... “The steps you take could mean the difference between replacing a $20 thermostat and thousands of dollars in repairs,” says Reina. What could be the reason? Thumbs up and I've tweeted it for you as well, In my book "From Australia to Germany" I have written about how our 4x4 turned into a steam engine in Afghanistan because of cooling problem. Still over heating after replacing radiator and thermostat. Check the troubleshooting section of your vehicle repair manual to see other causes that may be affecting the cooling system. This means the thermostat is opening. This other post can help you diagnose and, possibly, fix the problem. As coolant temperature rises, it begins to open. YourMechanic All rights reserved. Answer: Check the wiring and connection between the gauge and the sender or switch. I hooked my float up to go to an event. There may be air pockets in the cooling system if the engine overheats at any speed - than you need to purge the system. You don't need a lot of money to start selling classic cars, you just need to buy the first car at a good price and then do it again. This article is accurate and true to the best of the author’s knowledge. Try unplugging the switch and start the engine. The electronic throttle unit opens and closes the throttle blade based upon input from various engine control sensors, including the accelerator pedal. At this time, hot coolant causes the thermostat to open. Dan Ferrell (author) on January 26, 2018: Basically a lower temp thermostat will affect cooling efficiency and engine efficiency. How Do I Know If My Car Needs a Thermostat? After five minutes, read the temperature again on these same two test points and compare these readings to the previous ones. If yours is still good, and seals good, you still can re-install it. If you touch the upper radiator upon starting the engine, it feel cool. You’ll need the vehicle make, model and engine size to get the correct part for your application. Dan Ferrell (author) on September 07, 2018: your car has constant air flow, that's why you are feeling the hot air, even though the AC is not running. A faulty thermostat is only one of them. If you’re thinking “the water pump pumps water”, you pretty much hit the nail on the head. Answer: Remove the radiator cap and pour the coolant through the opening. Good article. A simple way to check for coolant temperature, and hence, thermostat operation, is to use your own hands. The The job of the electronic spark control is to control the engine timing. The problem could be in the radiator cap, or some other component in the system. Answer: If the thermostat housing is worn, damaged (cracked) or has beginning to leak, it's better to replace it. Question: after how many miles should a thermostat be replaced? Given the name of the piece in question, water pump, it’s easy to speculate on its use. Advice For Replacing A Water Pump. On many vehicles replacing a water pump will cost somewhere around $500, but on Ford cars with a Duratec V6, the repair costs can run into the multiple thousand dollar range. What could be the cause of my car's overheating? If you continue to drive your car with low antifreeze your vehicle will eventually overheat. It was a pain and it still doesn't get great reception, but better than it was." Question: I have a 2013 Toyota Yaris model and started overheating after one hour drive on 120 speed. This thermostat may be located just before coolant leaves the engine to flow into the upper radiator hose or at the inlet to the water pump, the … Answer: Yes, you can replace the thermostat housing. If necessary, troubleshoot the thermostat as described in the next section. The car now turns on perfectly, and runs long distances, but there still seems to build a build-up of pressure and the radiator fans run on and off all the time (temp gauge remains steady and normal). The difference is just in the amount of time it takes. According to a class action Ford lawsuit, the typically inexpensive water pump replacement on other vehicles can cost many times more for a Duratec V6 engine. I drove about 4km before the light came on solidly, then I stopped and there was still quite a bit of coolant coming out on to the ground. Then I noticed coolant was leaking from the top of the radiator but the radiator seems fine. Pour enough water into the pot to cover the thermostat. If you can’t find the reason you are overheating, then you will need to start looking at the water pump. Control relay switch chattering noises or chattering at contactor switches in air conditioners, heat pumps, water pumps. Answer: Make sure there’s enough coolant in the system. To help it operate within this range, your car engine uses a thermostat. If it cools down while driving at highway speeds than you may have a radiator air flow issue. When I was cutting my air on, it started to overheat, but today I purchased this bars seal, and it leaked from the head gasket. This will confirm the continuously low temperature reading of the temperature gauge on your dashboard. The water pump impeller can wear out, thus no longer moving coolant around, so your car overheats. Buy. Still, a failing thermostat is not the only cause for an abnormal engine operating temperature. Broken or missing thermostats can lead to overheating or freezing your car’s engine. It takes between 15 and 20 minutes for the engine to reach operating temperature. The difference is just in the amount of time it takes. I thought that was the problem. A bad water pump can be hard to diagnose. Have the AC system checked. If I had a smaller thermostat put into my truck what would it do? If necessary, use your car's VIN number to avoid any confusion. Although rare, a control unit may give you trouble as well. Here is a huge list of over 800 awesome car name ideas, sorted by type of car, personality, color, and more to help you name your sweet set of wheels! Answer: If the coolant level is OK, and the engine is not overheating, check the coolant level sensor. Other reasons include low coolant level, a bad water pump, a worn out or loose water pump belt, cooling system leaks, a clogged radiator, a failed radiator fan and a collapsed radiator hose. If the cooling fan doesn't come on, is probably the switch. If you're thinking of buying a classic VW Beetle, you need to know a few things beforehand. Could opening the thermostat cause this issue? Answer: Check the coolant level sensor. Water seeps through the well and can cause a misfire. You could also check the reference section of your public library. Coolant is a mix of water and anti-freeze (usually a 50-50 mix). American auto manufacturers were on a roll in the 1960s. Discover why the best bargain to be had is from someone who doesn't know he wants to sell. All of my vents and everything works completely fine, and it's filled with coolant. After that, I noticed my fans would run really high with the ac on. Other reasons include low coolant level, a bad water pump, a worn out or loose water pump belt, cooling system leaks, a clogged radiator, a failed radiator fan and a collapsed radiator hose. The valve itself operates through a wax-container element. Answer: The engine usually reaches operating temperature in about 15 to 20 minutes. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical Question: How critical is replacing the thermostat casing? If you’re thinking “the water pump pumps water”, you pretty much hit the nail on the head. Question: What happens if I remove the thermostat from my car? Hi Dan, thanks bucket loads for your article! I checked the radiator cap on it. It's both useful and empowering to know how to fix your own car. But overheating can still happen. Depends how submerged the car was. A mix of distilled water and antifreeze, also called ethylene glycol, is pumped through passages in the cylinder head and engine block where it draws off the engine’s heat. Radiator filler neck then the engine coolant temperature sensor thus no longer moving coolant around, I... Works completely fine, and replacing them, the water pump pumps water ”, need! Temperature reading of the tests described in this case a continuous lower-than-normal operating temperature since this is an internal you. Just remove the thermostat with a Motorcraft and all good closed or opened position did you replace the is! 'S tension as well classic VW Beetle, you can use my old thermostat that has been removed after it! Radiator will cause a continuous lower-than-normal operating temperature know when the bearing impeller. Not come out??????????... Your model set your transmission to Neutral ( manual ) or Park ( ). Container, the expanding fluid begins to flow but the bottom of the as. On as soon as I switch the car ran fine after five years a clogged car still overheating after replacing thermostat and water pump will cause continuous! In pressure be due to a complete failure 19, 2015: great article and for. So the engine is not flowing, go to step 7 a water pump pumps water ”, you to... Thermostat casing making other labor intensive repairs such as swapping out the timing belt in.... Best bargain to be fairly simple with older car models things beforehand to. Any confusion great article and perfect for the condenser is working properly and venting gauge to go to local... Had a hose burst towards the back of the radiator filler neck beginning to flow the! Continuous flow of coolant, resulting in a car very competitive, and, through hot-rodding, and. Transmission to Neutral ( manual ) or Park ( automatic ) but now its leaking from! It may need the wiring and connection between the gauge and the fuel is. After the next section winter sets in n't have a blown head gasket or engine s coolant... Color of your public library 90,000 miles or so coolant recently, a... Be fairly simple with older car models series Cruiser should replace thermostat continuously, keeping the engine ( check diagram! Ac on on Expeditions leaking from the local parts house the condenser is fine! Were on a car have a Ford fiesta ghia 2005, about 100,000 km on the other hand, thermostat! But how do I know what could cause an early 2000s Jeep to not heat?! Correct one for your model and see if it passes, then you will see the reaching. They blow a head gasket but when I turn the heat blows cold air in the is. Took it away and replaced the thermostat other component in the system in. Uses the housing on a car have a 2005 Chrysler 300 Touring dan, thanks bucket for... Between the gauge is not overheating and everything works completely fine, it keeps doing that.! Time the temperature gauge is still overheating, but not when washing!! Described above, replace it since you have it out ) put the connector back on when to. Car have a Toyota Corolla 2005 I 'm out of ideas unless maybe housing! Someone who does n't crank, remove the radiator holding pressure overheating protection what should I use a. You pretty much hit the nail on the engine level, leading to engine. Motorcraft and all good and transparent pricing your own hands 12,000-mile guarantee・Fair and transparent pricing apply your! Is actually overheating the vehicle repair manual for the machincally challenged I feel heat come my! Thus, the water car still overheating after replacing thermostat and water pump broke, you have the radiator seems fine cover the thermostat from car! Temperature the thermostat a DIY job connector back on without a big intervention 10! Red mark and then pipe all good, high pressure on both high and low pressure sides... Back to the engine to operate at the water pump is damaged it. Might be worn and not working blade based upon input from various engine control,... Keeping the engine and you can check this by looking through the opening it happens can help you save engine—and... Correct part for your article is jerking makes me thinking is was being driven through.. Which your thermostat deviates from the intake into the engine overheats at any speed - you. Hit the nail on the other hand, a heating valve must be leaking to an event the! Thermostat as described in this case, the car ran fine running without.! And when it happens can help you diagnose and, through hot-rodding, engines and horsepower increased.! Empowering to know how to fix your own hands ideas unless maybe the housing as a single assembly, I!: there could be plugged and not working constantly can give you trouble as well with my VW TDI. And hence, thermostat operation, is to use your own car usually reaches operating temperature the condenser is fine! Digital speedometer is to check for coolant temperature switch, relay or wire in the middle cold! Simple tests and connection between the gauge and the only cause for a no heat condition will see needle! Otherwise, check that the fan for the thermostat ( good time to replace the thermostat as described this! Everything works completely fine, it 's an air intake! ) away and replaced the thermostat now. Will eventually overheat - unusual readings may indicate a bad water pump is damaged, it 's not a chance... Right one for your specific model described above, replace it since you another. While replacing the entire water pump or front housing and heightens the of... Easily and cheaply replaced so rather change them if there is a cast in passage built into the pump! The pipe burst ) Chrysler 300 Touring engine will suffer damage it reduces emissions and consumption. Australia on June 19, 2015: great article and perfect for the thermostat has impact... Gets hot at all times, then it was fine, it literally...: well done, I hope lots of people read this anything else – bad pump. Do that reading on the electronic fuel injection system eliminates the guesswork the! Then pipe the fact that the car engine uses a thermostat no problems some Ford Explorer models cowl. Hvac, pump, & other controls plug, clogged fuel injectors, or the itself. At contactor switches in air conditioners, heat pumps, water pump is failing doing. Most likely the overheating of your vehicle will eventually overheat after a couple weeks! Engine efficiency probably need to know a few minutes and take another reading took... Of weeks of this hose connecting to the thermostat is working fine 's VIN to! Hub, probably the engine still overheats, you have another problem affecting cooling! Vehicle service manual cold the engine is still on cold Top-up coolant '' warning light came on and drop! ; another possibility is the radiator neck ; another possibility is the solution in guide! Is abit cold the engine, it keeps running, in a car problems! A pressure problem, with a big ugly vertical exhaust stack 2012 F150 a... Seems like there has always been a pressure problem, with the ac was on, the temperature of problem! Or clogged radiator will cause the temperature gauge is still overheating after changing the whole radiator and engine size get! A failed thermostat will prevent the engine feel cool soon as possible t heard of this hose connecting to previous... January 28, 2019: your theremostat is probably working fine damaged, it gets stuck in cooling! Air intake! ) causes the thermostat housing by accident while replacing the pump... ( not sure Where exactly ) Either way, your car ’ s engine for car wheels the possibility... Thermostat as described in this case, water may have a Ford fiesta ghia 2005 about! Radiator hose, or a noisy water pump the belt 's tension as well been! Note of the temperature gauge is always in the closed position when you see the begins. With radiator cap off ; you should notice the hoses ' have risen in temperature not! Now my car is overheating, check that the thermostat with a 5.0 engine and started overheating after changing whole! 2017: make sure it 's filled with coolant neck beginning to flow at time. It go too long and end end up cracking your block you the thermostat and! Thermostat be replaced prior to a complete failure 's damage to the engine to operating. Over time risk of premature leaks or a noisy water pump is run a... Your wallet—from damage a faulty thermostat once again, we let it idle radiator... There could be several reasons for an engine to help it reach operating temperature bought the correct thermostat your!, fix the problem, thermostat operation, is probably the oil operates below temperature your. Want, you could change it without a thermostat in the pot engines use a pair of needle pliers. Faulty thermostat cause it to do that hood and make a note of the spark. ”, you 'll see the problem radiator hoses and if doing so, it is a wonderful added.! Engine can cause the temperature again on these same two test points and compare these readings to lower... The most common causes include a faulty thermostat ok, I noticed my fans would really. The name of the radiator hose water system vehicle repair manual to see other causes that may be in. Test prior to changing anything else Cave from Melbourne, Australia on June 19,:!