coolant leak - Ford Mustang Forum
 
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post #1 of 9 (permalink) Old 09-08-2014 Thread Starter
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coolant leak

Hi you guys I am not only new at the forum but also a complete rookie about mechanics altogether. You will notice that by my ignorance and my language. I have a question My daughter has a 2007 4.0 6V Mustang. Since she moved to New York 3 years ago the car has been parked and used only a few times a months some times it has been months before we even turn it on. All of the sudden in one of those time that we used it the car overheated and was full of coolant. The following morning when it was completely cool I wanted to investigate what happened so I filled up the container with coolant and noticed that there is a huge water leak that starts somewhere that I cannot see very well but it looks it under the T-stat housing. If you keep on putting more coolant then there is another leak on the upper part of the housing. So I came to the forum started researching and I learned that it not uncommon to see this. So I took the complete housing out and after checking it I do not see any damage at all in the housing. But since the car is old and the housing is out I decided to buy a new one with a new T-stat. now I have not installed the new one but I am wondering if the water pump is damaged as well. How can I know if the pump is also damaged? just by trial and error meaning I install the new parts and test for more water leaks? or since I am already there should I change the pump as well? Thank you so much for any help that you guys can give me.

Best regards

Alfonso

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post #2 of 9 (permalink) Old 09-08-2014
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Since she doesn't drive all that much chances are the water pump was not damaged. Flush the system with a cleaner and fresh water then refill with 50-50 water and antifreeze.

If she lives in NYC I suggest selling the car before the first winter gets it loaded up with road salt. For the cost of parking, maintenance, repairs and insurance she can rent a car when she needs it. That, plus the salt will destroy the car in 2 or three years anyway.


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post #3 of 9 (permalink) Old 09-08-2014
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I replaced he thermostat housing on my '07 before it cracked. I didn't want to deal with it on the side of the road somewhere. I put the aluminum housing on mine because I plan to keep the car for several more years.

Your water pump should be fine.

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post #4 of 9 (permalink) Old 09-08-2014 Thread Starter
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Thank you guys. One more thing I have read in this forum that the aluminum ones are very bad what is your experience with that one?

Thank you again
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post #5 of 9 (permalink) Old 09-08-2014
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All that I have ever seen is how great they are. I had a few small issues with the fit on mine, but it was easily fixed. I contacted the guy who is making them and told him about it and he said that he would fix the issues in all future parts.

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post #6 of 9 (permalink) Old 09-08-2014
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my Simmons Autosportz aluminum housing fit perfect and I have had no issues.
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post #7 of 9 (permalink) Old 09-08-2014
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My experience with the aluminum housing has also been excellent. My plastic one was leaking from the day I bought the car. So that was the first thing I bought, as soon as I heard that it is a common problem. Since putting the aluminum housing on I haven't lost a drop of coolant. And it's been just over a year.


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post #8 of 9 (permalink) Old 09-09-2014
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I have the aluminum housing also, it is worth every penny I paid for it, no issues with installation or leakage.
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post #9 of 9 (permalink) Old 09-11-2014
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Hello, I have a 4.6L 94 GT that has just started leaking arround the thermostat housing and before pulling everything apart was wondering if some one can tell me what to do. The leak is on the passanger side opposite the thermostat but looks ominous with the bolts under the housing. I am thinking the first thing would be to take off the alternator and start from there but hope some one can give me some good instrustions.

Thanks

Wendell
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