coolant backing up into reservoir

coolant backing up into reservoir

This is not something to ignore, but it isn’t necessarily a difficult problem to fix either. Gets up to the middle on gauge, coolant goes backwards out of pressurized reservoir. (The car is just fine if I always drive long enough to get it to full operating temperature). The reason you need to refill the radiator directly is because the gasses being blown into the water jacket are displacing the coolant. Occasionally your automobile’s coolant reservoir will begin to overflow. Rust forms at the bottom which can not be flushed out, a new radiator is the answer. I have to put about one cup of coolant in the radiator daily before it fills to the top. Now there is no leak, however, the coolant from the radiator, is still backing up into the reservoir. It has a valve in it to allow the coolant to flow back in to the cooling system as the cars cool. (The car is just fine if I always drive long enough to get it to full operating temperature). Go through maintenance tips for consequences of the overfilled coolant reservoir. Discussion Starter • #1 • Nov 28, 2011. No water in oil check engine light is on. Removing the coolant reservoir cap on a warm engine could cause the cap to fly off at a high rate of speed and fluid to spray out of the reservoir. The fans not coming on, but hot wired the fan and I … After I had the head and studs done the temp raised a little but I know that's normal after building a head. Head Gasket. I did not run it very long today when I saw it overflowing while I had the cap off. No water boiled out of … The other way is if no radiator cap is present and a bypass exists within the overflow tank, where usually multiple hoses will connect to it. im thinking head gasket is bad and pushing coolant back out When the thermostat opens, the gauge will drop a little. Check when the engine is cold, making sure the radiator is not overfilled. - If the coolant is a correct 50/50 water / ethylene glycol mix and it was a head gasket, would you not smell a sweet note at the exhaust or see a slight amount of moisture in the oil? It flows the other way (into the tank) as the engine heats up and coolant expands. I pulled into a “Dollar Store” parking lot, went into the store and bought 50/50 coolant and shop rags and let the car cool off for 30 min. Coolant backing up... Share on Facebook; Share on Twitter ; Share on Google+; Share on Pinterest; Share by Email × Question about 1988 Buick Century. Head Gasket. Your thermostat probably got stuck closed. The radiator cap keeps coolant in the engine and radiator once the coolant heats up it need to expand and the radiator cap allows coolant to push a small amount of coolant into he coolant expansion tank, as the coolant in the radiator "cools down" that coolant is drawn back into the radiator through a second valve in the radiator cap. Go through maintenance tips for consequences of the overfilled coolant reservoir. But when I'm towing the temp goes up a little and pushes coolant into overflow. When I am done driving and i take off the radiator cap the radiator is low, no coolant above the fins. If you have good coolant and the radiator cap is new, then the thermostat could be sticking causing your coolant to heat up too much which in turn causes the system to boil. * If it fills constantly, to the point of overflowing, you have a leak in a head gasket that is adding oil to it. Below, we list some of the areas prone to fault that can let air into the system, and offer practical advice on how to fix it. sounds like the radiator cap is bad or the thermostat. As previously stated, the coolant is backing up and overflowing out of the top of the reservoir, no leaks. #04.Antifreeze backing up in overflow tank. Removing it and whether the fix will hold up under the average 15 psi pressure may impose challenges and risks to question the validity of the repair. In normal circumstances, the coolant gets ousted out from the reservoir overflow tube, the moment the engine starts warming up. Discussion Starter • #1 • Nov 14, 2010. so i have a sohc dodge stealth it has a new radiator,thermostat,cap and a timing belt service. You should also check the radiator for a restriction that is stopping coolant flow and thus backing up into the reservoir tank. To check if the thermostat is working, start up the vehicle when it is cold and watch the coolant temperature gauge. If you have good coolant and the radiator cap is new, then the thermostat could be sticking causing your coolant to heat up too much which in turn causes the system to boil. Seems that its not holding pressure or there is AIR in the system. so it overheats a lil and overfills my reservoir. Turned it back on and added water it ran for few miles got hot and popped reservoir cap open. When I drive a very short distance and cut off the engine, the engine coolant backs up into the reservoir and then the car has a tendency to overheat the next time I drive it? Rust forms at the bottom which can … I have a 96 Chevrolet Corsica V6.... a great car except for this crazy quirk. Top off the radiator fluid while the engine is running to make sure the cooling system is full. When the system cools down, the radiator pressure reverses and coolant is siphoned from the reservoir back into the radiator. shop and have them flush it or just replace it. 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