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Why does the coolant fill up the reservoir and not return back to the radiator leaving the radiator bone dry on a 93 Honda Civic DX?
Wiki User
∙ 11y ago
Why does the radiator fill up the reservoir
Wiki User
∙ 11y ago
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Which way does the coolant flow in a 1996 Subaru Legacy 2.5 l--does the top hose return to the radiator or the engine?
Coolant always goes in the top of the radiator.
Why does the water return to the reserve tank while still on?
Hot water (engine coolant) expands and pushes its way back into the coolant reservoir.
Water temp gage not working - radiator supply hose hot - return hose cold - radiator cooling fan runs a lot with coolant reservoir overfilled - any suggestions?
Temp.sending may be bad. BUT FIRST replace Thermastat. That should fix problem.If not then replace Temp.Sending unit. Brett
What does it mean if first you had no heat and now you notice no antifreeze in your overflow tank?
Coolant leak? Check to see if coolant is getting mixed with engine oil Run engine to normal operating temperature and remove oil dipstick, let a drop fall on hot part of engine - oil will smoke coolant will sizzle. If coolant is mixed with oil could be a bad head gasket. If coolant mixes with oil you won't need any special tests to see it. When they mix it will look like a vanilla milk shake. The newer coolant return systems are designed to keep the coolant level inside your radiator and engine full. When you car cools down (after running at normal temperature) it is designed to pull coolant out of the return reservoir back into the radiator. If the system gets too much pressure (usually from getting too hot) it will push coolant into the reservoir and then pull it back in as it cools. If the system has a leak then it will always pull back in more than it pushed out and the reservoir will have all coolant removed. Then the system will begin to draw in air causing the engine to eventually overheat from lack of cooling. Your heater works from the hot coolant passing through a small "radiator" under your dash. If the coolant is low then little or not hot coolant will pass through it.
Why does the coolant fill up the reservoir and not return back to the radiator leaving the radiator bone-dry on a 93 Honda Civic DX?
Hey Ken==The radiator cap isn't sealing. Replace it. GoodluckJoe If replacing the radiator cap is not enough then look at your radiator as the problem. Your radiator when the car is running should be the same temperature top to bottom. Run your hand down the radiator (careful you can burn yourself) and see if it is cool toward the bottom. If it is cool at the bottom but hot at the top your radiator is clogged. Flush does not work so save your money. I would start looking online for a new radiator their cheap enough. Good luck. -mspolyar If it still vents with a new cap then the excessive pressure could be due to a blown head gasket pushing combustion pressure into the coolant system, if the vehicle has been overheated recently it is a good possibility I had the same problem. Check your upper and lower radiator hoses. You might also need to replace your thermostat. The thermostat is a spring seal for coolant. These get stuck open and closed often for civics in the 1990's. I had to replace mine 2 times within a month. Part of it was my fault, because i drove it like i stole it. When your engine gets hot, the thermostat opens up and lets coolant in. When it is too cold, it closes and doesn't let coolant into your engine so it will warm up. Your thermostat probably got stuck closed. Also, check the little hose running from the reservoir tank to the radiator, it might be clogged.
What is the bypass pipe from the heater core to the radiator called?
Heater coolant bypass pipe It would be the return hose for the heater.
Where is the coolant sensor on a 1997 Pontiac transport?
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Is there a coolant pressure relief - bleed valve on a Sable - Ford Taurus?
There is no coolant pressure relief valve. Just have to wait for the engine to cool off sufficiently to safely remove the coolant reservoir cap.There is also not a coolant bleed valve.Here's are the coolant bleed/burp proceduresNEVER ever think of releasing a radiator - coolant cap when the engine is hot, or even warm!!!Burping: In order to what is sometimes referred to as 'burping' the cooling system - getting a big air bubble out of the closed cooling system, you will actually need to have the car running with the cap off.During the initial fill, fill the coolant reservoir bottle to the top of the cold fill range.Set the temperature blend selector to the full warm position and the fan motor control to high for the front and rear heatersStart the vehicle with the reservoir cap off and allow to idle until the thermostat opens NOTE: the coolant level will drop quite a bit when the thermostat opens - that's most of the air bubble in the system being driven to the top of radiator and escaping. Without the air, there's more room for coolant.Top off the coolant in the reservoir bottle to the top of the cold fill range,Install and tighten the reservoir cap.Increase the engine rpms to 3,000 for 15 seconds, and then return to idle for one minute.Repeat the previous step four times or until heat is coming from the rear unit while the vehicle is idling.Allow the vehicle to cool and top off the coolant in the reservoir to the cold fill range.Note: if you find the heater going cool or cold when idling, that's a good indicator you might have to burp the system again. Equally likely just adding more coolant to the overflow reservoir will suffice too.Did I mention to NEVER ever think of releasing a radiator cap when the engine is hot, or even warm? !!!
What is the hose that goes from the overflow to the bottom of the rad on a 2002 windstar?
The hose that goes from the overflow to the bottom of the radiator on a 2002 Windstar is the bypass hose. It allows coolant from the overflow to return to the radiator as it cools.
Where is the coolant temp sensor on new beetle?
2000 Volkswagen Beetle L4-1781cc 1.8LFig. 2 Engine Coolant Temperature (ECT) sensorThe engine coolant temperature sensor is installed in the coolant return (arrow), located between the cylinder head and the radiator
How do you install a radiator support for a 1996 Mitsubishi Galant Type S?
Slide out the radiator support remove fan and hoes. Separate by removing the old radiator support. Then replace it with new support, and return to brace and hoes connection. Pour coolant.
What is a wiper removal tool for a VW Jetta?
It is a small plastic tool that can be found beside the radiator return hose, to the left of the blinker coolant line.
