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ford expedition leaking coolant

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Old Oct 2, 2013 | 04:56 PM
  #1  
biggdawg33's Avatar
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ford expedition leaking coolant

i have i 2001 ford expedition 5.4l with a coolant leak that seems to only appear when sitting over night.the coolant is setting in the valley of the motor which i can see in the front behind the thermostat passage that runs behind the alternator.any suggestions would be great before i start tearing down the top of the motor so i can get a better direction in trying to find the problem other than guessing.

thanks in advance.
 
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Old Oct 3, 2013 | 09:49 AM
  #2  
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Coolant hose is leaking that runs underneath the intake manifold is my guess.
 
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Old Oct 3, 2013 | 11:09 AM
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Between the upper and lower intake manifolds is a coolant tube and an O-ring seal. Both are known for leaking. You're going to have to remove the upper intake to get to either of these.
 
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Old Oct 4, 2013 | 11:47 PM
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A cooling system pressure tester would be the quickest way to find your leak.
 
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