Coolant Loss
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Coolant Loss
What would cause an engine to blow the coolant back out of the radiator? Engine is a 1994 5.0 L F-150.
New radiator, water pump, and thermostat, engine completely rebuilt.
New radiator, water pump, and thermostat, engine completely rebuilt.
Last edited by Ultramagdan; Apr 2, 2003 at 08:13 PM.
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From: Billings MT
Coolant Loss
Not to imply anything, but is the thermostat in right?
Also, have you checked the heater core? Is it blocked?
Explain exactly what is happening? Is it overflowing the overflow tank?
Just taking a stab in the dark. Don't quite understand blowing the coolant back out of the radiator.
Also, did you burp the system and make sure that you don't have any air bubbles?
Also, have you checked the heater core? Is it blocked?
Explain exactly what is happening? Is it overflowing the overflow tank?
Just taking a stab in the dark. Don't quite understand blowing the coolant back out of the radiator.
Also, did you burp the system and make sure that you don't have any air bubbles?
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Coolant Loss
HEATER CORE SEEMS TO BE OK. DOES THIS WITHOUT A THERMOSTAT IN IT. LEFT IT RUN UNTILE ALL OF THE AIR WAS OUT.
THE ENGINE RUNS FINE SITTING STILL, BUT THE WATER LEVEL GOES UP AND DOWN IN THE RADIATOR. WHEN YOU DRIVE IT, IT BLOWS THE COOLANT BACK THREW THE OVERFLOW TANK .
THE ENGINE RUNS FINE SITTING STILL, BUT THE WATER LEVEL GOES UP AND DOWN IN THE RADIATOR. WHEN YOU DRIVE IT, IT BLOWS THE COOLANT BACK THREW THE OVERFLOW TANK .
Last edited by blackpowder; Apr 3, 2003 at 03:35 PM.
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From: Billings MT
Coolant Loss
Its gonna do that. As soon as the water gets warm, it will expand. If the water is moving up and down, it is cycling through the system.
I'm at a total loss. I know when I flush radiators, the water always moves up and down in the radiator, that's normal.
Does the motor got hot, I mean above 210*?
After all is cool, the level in the overflow should be at the cold mark. After up to temp, it should be at the hot or warm mark.
Is it putting more than that in the overflow tank?
Where are you at? Has it been freezing? Do you have the right mix? I had a car that didn't have the right mixture, it wasn't really cold, but the car over heated and overfilled the tank. The car got hot, I added some antifreeze to it, and it solved it.
That's pretty much the last idea I might have.
I'm at a total loss. I know when I flush radiators, the water always moves up and down in the radiator, that's normal.
Does the motor got hot, I mean above 210*?
After all is cool, the level in the overflow should be at the cold mark. After up to temp, it should be at the hot or warm mark.
Is it putting more than that in the overflow tank?
Where are you at? Has it been freezing? Do you have the right mix? I had a car that didn't have the right mixture, it wasn't really cold, but the car over heated and overfilled the tank. The car got hot, I added some antifreeze to it, and it solved it.
That's pretty much the last idea I might have.
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