Question about 1999 Plymouth Grand Voyager

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99 plymouth grand voyager low coolant, tried to overheat

I have a 1999 plymouth grand voyager and never had trouble with it overheating. Today while in traffic, the coolant light came on and the temp was in the red. I turned on the heater and the temp started dropping. I stopped to check the coolant and the plastic tank was below the min line. I added it to the max line. I little later it was right back down, so I filled it again. It's now back to the bottom again. I have added almost an entire gallon. I don't see any signs of a leak, but have been told there is no pressure in the cooling system when the hose is pressed/squeezed.

The temp has stayed normal since the first episode.

What could be the problem?

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  • v_brown77 Jun 06, 2010

    Thank you, I will check that out and I may add some stop leak today.

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With a very slow leak you might not notice the leak but the radiator would gradually take all the water from the plastic tank and then when the radiator gets low it will overheat. That's why you were able to add so much water. Small leaks are hard to find. You have to look close with a flashlight. Park on concrete so you can see if it's dripping.

Posted on Jun 05, 2010

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