Leaking coolant!!! - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 03-03-2009, 04:49 PM Thread Starter
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Leaking coolant!!!

I have a 2000 model f250 powerstroke with 208k miles the waterpump was roughly replaced 2 years ago and now my truck is leaking coolant at different times and i cant figure it out. it is coming from the bottom somewhere cant really tell without taking apart. Is there any reason it would be leaking sometimes and sometimes not. please help. should i just replace it myself of go have it done by a mechanic? any help would be great
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post #2 of 11 Old 03-03-2009, 05:32 PM
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How bad and how often is the leak? Maybe your thermostat housing or gasket? maybe just some corrosion around one of the hoses (don't forget about your heater hoses.)
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post #3 of 11 Old 03-03-2009, 05:37 PM
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We need a little more info. Yes it can leak sometimes and sometimes not. Depends on cooling system pressure, outside air temp, vibrations, etc... Can you look under the truck? When you say bottom, what do you mean?


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post #4 of 11 Old 03-03-2009, 05:55 PM Thread Starter
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when it does leak its a fast drip that makes a pretty good puddle. I cant actually see where the coolant is coming from When i crawled under it was dripping from the bottom pulley it seems to come from the bottom of the pump but i cant get a look at it. I havent seen any of the hoses leaking but i will look as soon as it leaks again. i am loosing coolant very slow and its never predictable. It also seems to leak more when the truck is running and almost comes to a halt when the engine is off. Confusing stuff i appreciate the help
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post #5 of 11 Old 03-03-2009, 05:57 PM
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The pump is probably going out again. Was it a new or reman that you replaced it with before? The remans can leak once in a while.


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post #6 of 11 Old 03-03-2009, 06:06 PM Thread Starter
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im not real sure my fathers mechanic friend replaced it for him. he works on fire trucks so i would guess he would use a new part. but i really have no clue. Why would the pump leak only sometimes. and is it worth doing myself or should i just take it to my mechanic
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post #7 of 11 Old 03-03-2009, 06:11 PM
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Pumps are not that hard to change. There is a write up on here under the 7.3 tech files section. Well it could leak from the pump when there is pressure in the cooling system once it warms up or if the bearing in the pump is going out it will leak when its turning. There is usually a weep hole on the bottom of the pumps that will start leaking which indicates the bearing going out. Try and see if it is coming from right under the pump.


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post #8 of 11 Old 03-03-2009, 07:52 PM Thread Starter
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thanks i appreciate it. what is the best pump to go with/ any secrets to help with install or longevity
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post #9 of 11 Old 03-04-2009, 02:09 PM
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check out youtube and do a search for water pump install on a 7.3. Marty aka "maintain" on here did a video on doing the install. Very cool and helpful. As far as brands, i don't know which ones are good or bad. I would get a motorcraft replacement or a napa one. Napa carries some of the best aftermarket parts. Make sure it is you pump though before you just start throwing money at it. Nothing worse than thinking you fixed something and have it cause trouble after your done.


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post #10 of 11 Old 03-04-2009, 10:06 PM Thread Starter
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thanks for the help i was actually able to get up under with the truck running today with a flash light and it looks as if the coolant is running from around the bottom of the water pump. so i figure if i change it it will be ok?
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