Question about 1990 Dodge Caravan

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Dodge Caravan 1990 coolant leak..

The bottom of the van was leaking radiator fluid fast I PUT WATER And it seems like its full in the reserve cap and the radiator cap it has leaking compleately .. what could be or had been the problem. the tempeture in the city was 89 d..

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  • truegamergir Mar 01, 2009

    so far I looked at it drove it kept looking it seems theres still radiator fluid in the radiator, I don't see anyhting leaking at all. I smell antifreeze a tiny bit. but no leak.

  • truegamergir Mar 01, 2009

    Actually I just drove the van about 15 mins. I then parked and the same thing is happening there's coolant leaking on the bottom. But the reserve and the radiator look full. everything looks wet beneath the vehicle.

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Do not put water in your radiator. Use 50% mix of antifreeze and water or you will corrode your engine. Add coolant mix to cold engine. Fill the reservoir and the radiator. Warm up eninge while looking for the source of the leak. If lucky, it will be the lower radiator hose. Easy repair. If it's the engine block, big problem. Let us know what you find.

Posted on Mar 01, 2009

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Need more info on the problem

Posted on Mar 01, 2009

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Your coolant system is leaking water.
Look under the vehicle for signs of the coolant whatever color it may be leaking down the engine.
If you have an automatic transmission, look at the fluid to make sure water is not leaking into the transmission via the cooler in the bottom of the radiator.
Check the tightness of all hose clamps on every rubber hose. Check the condition of the radiator cap and if it is older than 5 years, replace it with a new one anyway.
Take the overflow hose off the radiator and try blowing through it into the reservoir..if the system is dirty sometimes coolant is blocked from going into the reservoir when the engine heats up and therefore is dumped on the ground.
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Some Ani-freeze from time to time under van, top radiator hose cold, no heat


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Car is overheating after short drive (3/4 hour) had thermostat changed, put new coolant in radiator. radiator was pressure tested no leaks? car ok short drive to store. resevoir seems always overfilled...


The expansion tank will be more full when hot. Let it cool down and check it then. The level in the axpansion tank should go lower. If not then you may have a faulty radiator cap.
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Van is losing water but the overflows continues to stay full. No cracks in radiator and the cap where you put in the water has a hose going in but no hose on the opposite opening.


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Do not remove radiator cap to add coolant to system. When adding coolant to maintain correct level, do so at coolant reserve/overflow tank. Use a 50/50 mixture of ethylene glycol antifreeze containing Alugard 340-2 y and low mineral content water.
Remove radiator cap only for testing or when refilling system after service. Removing cap unnecessarily can cause loss of coolant and allow air to enter system, which produces corrosion.

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The cooling system is closed and designed to maintain coolant level to top of radiator.
WARNING: DO NOT OPEN RADIATOR DRAINCOCK WITH ENGINE RUNNING OR WHILE ENGINE IS HOT AND COOLING SYSTEM IS UNDER PRESSURE.
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TRANSMISSION and OIL LEVEL CHECK TUBES
pctech1_27.jpg

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1 Answer

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