engine overheat coolant overflow
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P PEEYUSH KUMAR SHARMA. I read a few answers but none of them mentioned the thermostat. Most of the time, excess coolant is expelled from an overflow hose. ... the radiator and cooling passages must be clean to properly flow coolant. Coolant boiling but not overheating? Repairs so far. Coolant is not very dirty No leaks (checked with a pressure tester too) Have bought 2 radiator caps and tried an old one (tested those too) Radiator is a year old And i know for sure it is coming from my overflow drain tube because i set the tube in a place that i could see it was draining and the tube and that area was wet. I fought with this, stopping every 30-45 minutes and adding 1/4 to 1/2 gallon of water. The fact that the coolant was boiling out of the reservoir cap suggests that the thermostat may be stuck closed. The engine never did run hot, with the hottest it ever got being a hair over 200. In my experience the thermostat is the most likely cause of the overflow tank to overfill. The coolant tank, also known as the coolant overflow bottle, is designed to hold coolant when the fluid heats up. Symptoms Friend called, his girlfriend's car had been overheating. Too much coolant can cause significant problems to your vehicle. The minimum mark is the lowest amount of coolant your engine will need and going below this may cause overheating problems. The coolant was being lost through the coolant overflow hose. Your vehicle’s cooling system is designed to accommodate a small amount of extra coolant. Coolant tanks have two marks on them indicating a minimum and maximum level. The temp gauge got to about 240 deg F and then spiked higher when the engine was shut off and the fan quit running. The coolant was literally boiling in the overflow tank. If not, the engine can overheat. I stop and check and sure enough, coolant is below the min line on the reservoir. Service centre ppl just say we are rectifying but they do nothing and problem still persists. Mechanic told them the radiator was the problem, as it was out of coolant. Hyundai Motor India — Engine overheating and coolant overflow . In this case, flush the system, replace the radiator and refill with a high-quality coolant. I bought in dec 2019. on Aug 5, 2020 . The lower of the two marks used when the engine is cold, while the other mark is used when the engine is hot. Vehicle 2002 Mazda Protégé LX 2.0, 238,000 km. Tonight was the second time in a week & there was a pool of coolant when I went back outside after a couple of minutes. The first time it was dripping out slowly & I suspect while I was driving, because there was a drip line where I turned onto my driveway. When the car first came to me, it was running a temperature (temperature gauge about 2/3 of the way up), coolant was boiling over in the overflow tank, no CEL. When the engine reaches a certain temperature, it opens allowing coolant to flow through the radiator and then to the motor. If it’s just a plastic cap with no writing, then you should be OK, as an overflow tank is not under pressure and is the best place to add coolant if you’re overheating. It has overheating problem and on hilly road its coolent overflows, causing engine overheating even worse. Never dripped any more once the engined stopped. Finally, the thermostat must be doing its job to keep the engine’s average temperature within the normal range. You’ll likely see a puddle of coolant beneath your car if this has happened. Once you add the coolant, you’ll have to wait for a few minutes for the coolant to be drawn into the radiator—but waiting is … Maintenance/Repairs. When this is not functioning properly, the result can be catastrophic overheating of your car’s engine. Too much water however, results in a mixture that will not produce the desired effects of using coolant in the first place. Overheating, as previously described, corrosion, water pump failure and increased engine wear. I have xcent petrol. So, the radiator must be capable of doing its job, which requires the help of an efficient cooling fan. Coolant is leaking from the overflow tube. What to do if your engine is overheating. If the thermostat fails to open, it will effectively block the flow of coolant and the engine will overheat. Problem still persists road its coolent overflows, causing engine overheating even worse, is designed to coolant... Few answers but none of them mentioned the thermostat is the most likely cause of the reservoir was the,. Problem still persists i stop and check and sure enough, coolant is expelled an... And the fan quit running car if this has happened overflow bottle, is designed accommodate... Extra coolant, corrosion, water pump failure and increased engine wear accommodate a amount. Mechanic told them the radiator and then spiked higher when the engine hot! 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