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1998 Ford Mustang GT Question: I have water being forced out of the reservoir even when the cap is off.

 

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Ford Mustang, Savannah, GA, October 14, 2012, 14:33
 Rookie

I have replaced the engine, the intake manifold, the water pump, the thermostat, the radiator, and the upper radiator hose. There was a mixture of oil in the reservoir until we replaced the intake manifold. What else is left to cause the problem? The car has not been overheated. Any thoughts?

4 Answers
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  • Answer #1

    mastertech6371 October 14, 2012, 14:52
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     Master

    head gaskets are blown.

    Roy

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    Ford Mustang, October 14, 2012, 15:14
     Rookie

    on a brand new engine ?

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    mastertech6371, October 14, 2012, 15:29
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     Master

    thats new info. nothing stated as to being new.

    start with leak down test anyway to rule it out.

    how did you bleed the cooling system??

    Roy

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    Ford Mustang, October 14, 2012, 16:04
     Rookie

    Sorry, I thought replaced engine indicated new. My mistake. I have someone else working on the car and he is stumped. I will give him this information and see where we are. Thanks!

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  • Answer #2

    ziptie12 October 14, 2012, 16:12
     Master

    Is pressure building in the cooling system immediately upon starting or is it gradual? If it is immediate then as already stated the 'new' (re-man? & from where?) may have a cracked head or block. Was it a short-block or long-block and did you personally do the install? (I ask that , because many people state 'I have replaced---' when they really mean they had a shop do the work-they just did the hard part---paying for it.)The more specific the info , the more we can help.

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    Ford Mustang, October 14, 2012, 16:28
     Rookie

    It is immediate. It is a re-man from Advanced Auto. It is long-block and was installed by someone else. He is a qualified mechanic but is stumped. This has been a frustrating road that began 6 weeks ago. I am looking for anything that can help us move forward and get my car back to me running properly. Thanks!

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    ziptie12, October 14, 2012, 17:07
     Master

    KEEP ALL OF YOUR RECEIPTS!!!!!! The last long-block I reluctantly installed for a customer, years ago, was from advance. I warned them amd also told them they were going to pay extra. I was very glad I told them up-front , because the engine ended up having a crack in the block-- COVERED OVER WITH BONDO & PAINT! PLEASE PREPARE YOURSELF and have the diagnostics done - keeping in mind not to do (or have done) anything that would void the warranty. Good luck , for your sake (& sanity) I hope we're wrong.

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    Ford Mustang, October 14, 2012, 17:20
     Rookie

    Thanks for the information. I have kept the receipts and hopefully we can get it sorted out!

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  • Answer #3

    pushrod October 14, 2012, 16:19
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     Master

    COMBUSTION LEAK TEST WITH THE BLUE DYE THAT TURNS YELLOW AT THE PRESENCE OF CO. ANY REPAIR SHOP SHOULD BE ABLE TO DO THIS. OR BORROW A TEST KIT AND DO IT YOURSELF. IF THE DYE TURNS YELLOW SEND THE ENGINE BACK!!
    IT HAS AN INTERNAL PROBLEM. NO WAY H2O PUMP IS TURNING THE WRONG WAY? OR SOMETHING CRAZY
    LIKE WRONG IMPELLER ON PUMP.

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    ziptie12, October 14, 2012, 17:10
     Master

    DAMN we think a lot alike, Mr. B , but I didn't remember to say it( about the water pump).After I saw "Advance Auto"........never mind

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    Ford Mustang, October 14, 2012, 17:24
     Rookie

    The water pump came from advance as well.

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    pushrod, October 14, 2012, 17:38
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     Master

    YOU KNOW WHAT THEY SAY ABOUT GREAT MINDS THERE ZIP! AND I AGREE WITH YOU 100%.
    THIS SIMPLE TEST IS BULLLET PROOF IF PEFORMED AS PER INSTRUCTIONS ON BOX!

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    Ford Mustang, October 14, 2012, 17:45
     Rookie

    Thanks for the help!

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    pushrod, October 14, 2012, 18:03
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     Master

    YOU ARE WELCOM,LET US KNOW WHAT TURNS UP.
    GOOD LUCK!

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    Ford Mustang, October 14, 2012, 18:50
     Rookie

    Will do!

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    ziptie12, October 23, 2012, 20:14
     Master

    Any solution yet? Curious.

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    pushrod, October 23, 2012, 22:32
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     Master

    NO RESPONSE IS COMMON HERE SEEMS A WASTE OF TIME!!! I AM ABOUT DONE.

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    Ford Mustang, October 24, 2012, 15:17
     Rookie

    I just got this message. I have been at work. The engine was warrantied and the new one should be here this week. I am hoping that the new engine will be good! It has been an awful, long drawn out process!

    Thought I would update you all!! Everyone was wrong and way off base. It was a cracked water cooler!! I wasted a lot of time and money listening to a bunch of mechanics, including the ones who actually worked on the car. I finally had to get a couple of new mechanics to look at it and find out what the real problem was. Just remember, the water cooler!!!!

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  • Answer #4

    landrovershop from Two Nuts and a Bolt Garage, November 13, 2013, 15:47
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     Enthusiast

    it depends how forceful the water is escaping. some is normal due to coolant agitation from the water pump and the heating of the coolant. If it is gushing i would check for belt being routed properly and thermostat being installed correctly. oil in the cooling system make the radiator operate inefficiently. I always recommend radiator replacement with an engine

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