Hi,
When the engine is cold, remove the radiator cap and inspect level. If it is low in the radiator, top it off with a 50/50 mix of coolant and water.
Next, inspect the level in the overflow reservoir. There should be an indicator on it which says full. Fill to that point.
If there is a leak, you really need to find it. Here are a couple links you may find helpful:
https://www.2carpros.com/articles/car-is-leaking-coolant
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Here are the directions straight from the repair manual. The attached pic correlates with this. I circled the two locations for filling.
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2003 Dodge or Ram Truck Caravan V6-3.3L VIN R
Cooling System Filling
Vehicle Engine, Cooling and Exhaust Cooling System Service and Repair Procedures Cooling System Filling
COOLING SYSTEM FILLING
COOLING SYSTEM FILLING
Fig.6
See pic 1
Remove radiator pressure cap and fill system, using a 50/50 mix of Mopar Antifreeze/Coolant, 5 Year/100,000 Mile Formula and distilled water.
Continue filling system until full. Be careful not to spill coolant on drive belts or the generator.
Fill coolant recovery/reserve container to at least the MAX mark with 50/50 solution. It may be necessary to add coolant to the recovery/reserve container after three or four warm up/cool down cycles to maintain coolant level between the MAX and MIN mark. This will allow trapped air to be removed from the system.
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Let me know if this helps or if you have other questions. If you do have other questions, please let me know the engine size.
Take care,
Joe
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Friday, May 29th, 2020 AT 9:56 PM