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  #106  
Old 04-12-2011, 12:34 PM
Rickey0604 Rickey0604 is offline
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7.3L oil leak

Thanks guys for all you got. Just dropped $600 on finding out that HPOP line was cracked and lost almost 4 quarts in a month. Still have a leak and going out to find the plug just as soon as I pull into port.
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  #107  
Old 08-12-2012, 11:18 PM
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zthayer zthayer is offline
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Pop, I'm zthayer I just purchased a 1997 7.3 about four weeks ago. It has developed a oil leak on the passenger side. I checked the oil and there isn't any milky residue and the previous owner replaced the valve cover gaskets.It has 82,000 original miles, Whats your thoughts?
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  #108  
Old 08-12-2012, 11:26 PM
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I had this happen once too. Pull your IC tubes and re-seat the seal on the valve cover. Push it up towards the center of the engine then lightly tighten down all the top bolts. Then lightly tighten the bottom ones and wiggle the cover around a bit then tighten down the bolts in a star pattern. It should go away. Bottom line is the seal just needs to be re-seated.
It may also be worth pulling the seal off and cleaning all metals and the gasket.
When mine was leaking re-seating it fixed it.
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  #109  
Old 08-13-2012, 12:21 AM
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Quote:
Originally Posted by zthayer View Post
Pop, I'm zthayer I just purchased a 1997 7.3 about four weeks ago. It has developed a oil leak on the passenger side. I checked the oil and there isn't any milky residue and the previous owner replaced the valve cover gaskets.It has 82,000 original miles, Whats your thoughts?
Is the oil running down over the exhaust manifold? If not, its not likely the VC gasket. These seldom leak and don't really 'go bad' - as far as sealing the VC goes anyway. Why did PO replace the gaskets?

If the oil is on the back of the engine or makes a puddle/stain on the pass-side behind the engine - you most likely have a leak into the engine valley somewhere. Look down behind the fuel filter with a brite flashlite. See any oil puddled up down there?

Oh, and there are no CAC tubes on a '97...
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  #110  
Old 07-19-2014, 06:14 PM
Powerstoke73 Powerstoke73 is offline
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Turbo

I have an oil leak that is driving me crazy i have a 99 f350 dually 7.3 and the bottom of the truck is cover in oil the oil pan the trans pan and the under carriage looks to be oil but the dip stick is still full i looked in the valley but i couldnt see anything near the hpop but there is some kind of line under the pedestal and it looked like it was wet (oil) and while i was back there i saw a line unplugged that was very close to where the fuel filter goes into its a two prong plug with like a metal clip on it i have no idea where or what it goes to and why it is unplugged

Any help would be much appreciated thanks in advance
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  #111  
Old 07-19-2014, 06:41 PM
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k2vailkid k2vailkid is offline
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Things to look for on your search:

1. If there isn't oil pooled in the valley under the HPOP and fuel bowl, then your leak isn't from the topside.

2. Turbo Pedestal O-Rings could be at fault. Run your fingers (when the truck is cold) around the base of the turbo and where it bolts to the engine block. This is a common leak spot.

3. Sadly oil pans on these 7.3's can rot out and weep oil. Check that as well.

4. The Dipstick-to-oil pan gasket commonly swell and leak as these trucks age.

I just had to have my oil pan gasket, dipstick tube gasket and rear main seal replaced this spring, only 175k on the clock. Not sure why both were leaking as this ISN'T common on these. Since the motor had to come out might as well fix them all while you are in there.

The plug you are talking about sounds like the fuel bowl heater plug.

I'm sure others will throw some more stuff in here from their experiences! Good people here!
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  #112  
Old 07-21-2014, 03:27 PM
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k2vailkid k2vailkid is offline
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"The plug you are talking about sounds like the fuel bowl heater plug."

I realized I should be more specific because there are two plugs in that area.
The yellowish plug that is up higher on the back of the fuel bowl is your bowl heater. There is a black plug down lower and set slightly left of center as well. That goes to the HPOP, I believe it is the IPR circuit.

Hope that helps with a bit more info.

-Kevin
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Old 07-21-2014, 03:27 PM
 
 
 
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