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Old Oct 2, 2012 | 06:59 PM
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Question Coolant leak

I tried a search about this but am just going in circles. A few weeks ago i replaced the water pump and hoses. It was leaking out the bottom. The new pump is fine, but today I have a coolant leak from somewhere below the drivers side head, towards the front. Could that be the block heater? What is involved in fixing it? Or is there something else I should be looking at?
 
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Old Oct 2, 2012 | 07:01 PM
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The block heater is towards the rear, by the oil filter.

What about the oil cooler flange where it bolts to the front cover?
 
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Old Oct 2, 2012 | 07:09 PM
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There are 2 small lines in the area that is leaking. I didn't have a light when I looked earlier and now it is raining. If I am not mistaken I think the lines turned toward the back. I didn't see where they went. Are they to the oil cooler?
 
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Old Oct 2, 2012 | 07:11 PM
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The oil cooler is a large tube, about 2.5-3" diameter that runs from the front to the back. I'm trying to think of lines that are in that area...only thing I can think of is the fuel lines right now.
 
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Old Oct 2, 2012 | 07:21 PM
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Yea, I think they were probably fuel lines. The coolant was dripping off one of them. Is the cooler above them?
 
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Old Oct 2, 2012 | 07:29 PM
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The cooler sits just below the exhaust manifold, the fuel lines run from the fuel bowl down to the frame.

Here is a quick pic I found showing the fuel lines and oil cooler at the front cover.

 
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Old Oct 2, 2012 | 07:36 PM
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I will have to get under there and look closer. Is there a bracket at the back too? Does it leak where the bracket meets the block?
 
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Old Oct 2, 2012 | 08:26 PM
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Yes there are flanges on both ends that mount to the front cover and the block, it also houses your oil filter.

Here is a rebuilt kit, if it's your issue.

Riffraff Diesel: Oil Cooler Seal Kit

Or if you simply wanted to replace it all, Clay has that too.

Riffraff Diesel: Ford 7.3L Oil Cooler 94.5-03

Riffraff Diesel: Ford Rear Oil Cooler/Filter Assembly
 
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Old Oct 4, 2012 | 04:57 PM
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Coolant leak is really diesel

Well it seems like I did not pay attention to what I was looking at. When the water pump went bad I dumped all the coolant and put in new. I had this big container of greenish old coolant. When I looked for my leak I saw the same greenish drip and thought it was coolant. Today it stopped raining so I went under the truck and sprayed it down with some cleaner. After it dried off I started it up and it was still dripping green in the front off the larger of the 2 fuel lines. But I put my hand under it and then smelled it. Diesel fuel. It is coming from the joint in the line, I assume it is the supply line since it is bigger. So what is the deal with this? New line? Are there any seals in the joint?
 
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