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Losing water in Chrysler Pacifica


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ldsherrill1
New User

Apr 10, 2015, 10:11 AM

Post #1 of 6 (1054 views)
Losing water in Chrysler Pacifica Sign In

Car was losing water. We replaced the radiator, thermostat and coolant reservoir. Test drive it 10 miles one way and? back and it will lose a gallon of water. Water seems to be circulating fine and can not find a leak, but it seems to be coming back out the overflow coolant reservoir. Why?


Tom Greenleaf
Ultimate Carjunky / Moderator
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Apr 10, 2015, 11:46 AM

Post #2 of 6 (1044 views)
Re: Losing water in Chrysler Pacifica Sign In

Did you find the leak to begin with and now still this?


Chances are it isn't properly filled now and may have overheated before or again now.


If quickly blowing out to reservoir it really suggests combustion gasses are getting into cooling system displacing coolant, will overheat making it worse.


Pressure testing will help and checking that it's truly filled then go on to checking for a head gasket failure,


T



ldsherrill1
New User

Apr 10, 2015, 12:04 PM

Post #3 of 6 (1040 views)
Re: Losing water in Chrysler Pacifica Sign In

Checking the head gasket for leaks or cracked head was one of the first things checked and both ok. Also, no gasses in system from not being properly filled. Any other ideas?


Tom Greenleaf
Ultimate Carjunky / Moderator
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Apr 10, 2015, 12:10 PM

Post #4 of 6 (1037 views)
Re: Losing water in Chrysler Pacifica Sign In

If you mysteriously lost a gallon of "water" and can't find out where it went how do you rule out anything? It's not that easy to know a system is really full or not short of vacuum filling you really aren't on many systems now.


Proof positive would be heater can't throw any heat for a clue and once did before all this,


T



Hammer Time
Ultimate Carjunky / Moderator
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Apr 10, 2015, 1:16 PM

Post #5 of 6 (1034 views)
Re: Losing water in Chrysler Pacifica Sign In


Quote
Checking the head gasket for leaks or cracked head was one of the first things checked and both ok.


How are you so sure about that?

How did you test it?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Apr 10, 2015, 1:17 PM)


Discretesignals
Ultimate Carjunky / Moderator
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Apr 10, 2015, 1:27 PM

Post #6 of 6 (1029 views)
Re: Losing water in Chrysler Pacifica Sign In

Which year and engine size?

A faulty radiator cap can allow coolant to blow out the overflow. Did you test the cap?





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