Mechanics

RUNNING HOT

1994 Ford Explorer • 6 cylinder 4WD Automatic • 173,000 miles

What causes water to blow out through the radiator
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KarenL
March 11, 2011.



Bad radiator cap/not on properly, or too much cooling system pressure.

Tiny
Fixitmr
Mar 11, 2011.
The water is blowing out of radiator while idling with the cap off
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Tiny
KarenL
Mar 11, 2011.
Well you aint suppose to run it with cap off.

Tiny
Fixitmr
Mar 11, 2011.
That is normal. The reason is that when the engine cold the water does not circulate, after the engine begins to heat up the thermostat opens and closes, the water begins to circulate causing pressure in the radiator. You may have overfilled the radiator if so put the cap back on it and it will correct its self.

Tiny
Ejs
Mar 11, 2011.

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