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On my 2012 4 cylinder. 200, the coolant level in overflow tank keeps lowering. I can't find any leaks, and no coolant smell in the heater,no coolant in the oil,no white exhaust
 

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On my 2012 4 cylinder. 200, the coolant level in overflow tank keeps lowering. I can't find any leaks, and no coolant smell in the heater,no coolant in the oil,no white exhaust
I keep a jug of the Mopar coolant for our car. I have topped off the recovery tank twice, and the dealer has done the same. No leaks anywhere, it's dry as a bone underneath and on top.
Not worried, some cars use more oil, some lose coolant.
We are over 105,000 miles and no issues.
 

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It is possible that you have a pin hole. Leave a pressure tester on the system overnight.
That of course is possible. However when I remove the coolant recovery tank cap, I can hear the hiss from the pressure being released.
At this point with our car, it's just drive it until it's time to trade it !
 

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Discussion Starter #8
Well unfortunately my 200 has a 2.4l 4 cylinder engine ,like I did mention at the start of my post.
 

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On my 2012 4 cylinder. 200, the coolant level in overflow tank keeps lowering. I can't find any leaks, and no coolant smell in the heater,no coolant in the oil,no white exhaust
check the radiator cap. It happened to me and I changed the radiator cap.
 

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While replacing the alternator in my wife's 2012 the other day, I found a small trail of coolant that had run down from the overflow jug onto the fenderwell shield, but not enough to reach the floor. I suspect it may be a crack in the jug that will leak more over time.
 
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