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1994.5 - 1997 7.3L Power Stroke Diesel  

fuel in coolant?

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Old Mar 26, 2012 | 09:29 PM
  #16  
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How To: 7.3L Powerstroke Injector Removal and Installation
 
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Old Mar 26, 2012 | 09:44 PM
  #17  
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What exactly happens to the injector cups, do they crack? What do you look for as far as a bad one?
 
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Old Mar 26, 2012 | 10:14 PM
  #18  
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In our motors the 'gold' isn't any good and eats away at the sealant under the cups causing them to leak. Yes, a cracked one will do the same. I think, I'll let the guru's chine in.
 
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Old Mar 26, 2012 | 10:22 PM
  #19  
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Originally Posted by oldbird1965
In our motors the 'gold' isn't any good and eats away at the sealant under the cups causing them to leak. Yes, a cracked one will do the same. I think, I'll let the guru's chine in.
Just wondering. I've had injectors out but never messed with the cups.
 
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Old Mar 26, 2012 | 11:36 PM
  #20  
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Me too, I don't think you have to mess with them unless they are doing the above. If treated right, they will last a long time. When I did my injectors a million years ago I never even looked down the hole, LOL.
 
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Old Mar 27, 2012 | 06:56 AM
  #21  
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The sleeves could last forever, or they could split apart on any of us tomorrow.
There's really no way to know....
 
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Old Mar 27, 2012 | 07:19 AM
  #22  
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When you check the cups use a good light and a mirror. You'll be surprised at the scratches and hair line cracks you can see that your eyes can't
 
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Old Mar 27, 2012 | 11:37 AM
  #23  
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As stated above. Riff Raff has every thing you will need to swap out those cups. There are detailed instructions in PDF format on the website.

With that many miles on the injectors I'm sure its time for some work there. Along with glow plugs if they have never been addressed.
 
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Old Mar 27, 2012 | 03:41 PM
  #24  
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Thanks for all of the info. you guys are awesome. This truck use to be part of a fleet, owned by my old boss, so I have invoices on almost all repairs. Is it weird that only 6 of the 8 injectors have been replaced (that i can prove) 2 of which by me when i purchased it? I have no idea how i can afford new injectors... Anybody want a 80% restored 1973 19 ft Mako Center console? Truck is more important then finishing that project...
 
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Old Mar 27, 2012 | 07:55 PM
  #25  
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Get the cups figured out first. You may not have a injector issue it could be a cracked causing that injector to miss if it's not getting the right amount if fuel
 
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Old Mar 28, 2012 | 09:23 AM
  #26  
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Great link to the injector removal writeup! Been lookin for one.

Good luck with your injector cups!

PM sent.
 
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Old Mar 28, 2012 | 09:05 PM
  #27  
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Get a coolant test pump. Pressurize the cooling system with the injectors out and check each cup for leaks.
 
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