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1994.5 - 1997 7.3L Power Stroke Diesel  

replacement engine not running

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Old Jun 20, 2016 | 08:43 PM
  #16  
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No haven't tried that
 
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Old Jun 21, 2016 | 04:09 AM
  #17  
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Ok I drained the bowl and cranked it over.the fuel bowl is filling.the fuel pump is new.I still have no fuel pressure. Could the FPR unit be bad?
 
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Old Jun 21, 2016 | 08:04 AM
  #18  
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You will only get pressure when the trucks running/cranking, did you make sure the fuel pressure bowl was complete?
 
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Old Jun 21, 2016 | 08:37 AM
  #19  
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You'll also only get fuel pressure when the filter and cap are in place.
 
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Old Jun 21, 2016 | 08:45 AM
  #20  
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Yes,everything is complete,cap is on and still have no pressure while cranking
 
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Old Jun 21, 2016 | 09:09 AM
  #21  
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Damn hope I didn't mess up,I disconnected the the two little wire going to the GPR so the glow plugs would not come on. I took off the breather and sprayed starting fluid in the inlet side of the turbo and tried to crank it, I did not fire or run cause my batteries were weak and starter did not spin long.I let the batteries charge about 10 mins and decided to crank again.this time I plugged the two wires back into the GPR I did not spray anymore starting fluid however when I turn the key to WTS I heard a real faint poof noise come out the exhaust. I didn't think much of it.when I turned the key to start there was a bang and a fireball flew out the breather side of the turbo. I jumped about 20' in the air lol. Everything seems alright it still spins over fine . I know not to use starting fluid but I did .trying to get in a hurry to get it running
 
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Old Jun 21, 2016 | 12:39 PM
  #22  
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It sounds to me like you've got air in the fuel system. You'll need to keep cranking until fuel comes out of the schrader valve and you get good pressure there. Crank 10 seconds, let the starter rest for 30 seconds. Keep your batteries charged up. If your cranking rpms drop below 100 or your system voltage while cranking drops below 10.5 V, then the pcm won't even try to fire the injectors.
 
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Old Jun 22, 2016 | 11:00 AM
  #23  
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Cranked,cranked and cranked some more nothing's coming out the shrader valve and bowl is full.where to look next?
 
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Old Jun 22, 2016 | 11:41 AM
  #24  
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It sounds like you need to find out why you aren't getting fuel to the FPR. Start cranking lines until you find fuel.
 
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Old Jun 22, 2016 | 12:03 PM
  #25  
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When I remove the cap to the bowl the fuel appeared to be below the hole going into the FPR is this normal?
 
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Old Jun 22, 2016 | 12:13 PM
  #26  
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The air is supposed to be pushed through the hole into the return line and back to the tank I think. Is the screen inside the hole plugged with trash?
 
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Old Jun 23, 2016 | 08:01 AM
  #27  
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does it turn over
 
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Old Jun 23, 2016 | 08:39 AM
  #28  
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Um, it wouldn't be filling the fuel bowl if it wasn't turning over.....
 
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Old Jun 23, 2016 | 10:59 AM
  #29  
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I've been turning it over at the firewall solenoid with a screwdriver cranks just fine. I was hoping to get it to run but I didn't.now I have to head out of town for work so I guess when I come back in I will try again.
 
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Old Jul 13, 2016 | 05:33 AM
  #30  
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I am back working on this truck again.I have tried everything so I started back at the beginning.I have drained the fuel bowl so I could see what the fuel is doing as it comes in the bowl.As I crank the truck I can see fuel coming into the bowl.it is not much fuel and the rate of flow I think is to slow.i will be cranking for a long time.How long should it take to fill the bowl? Could I have swapped the fuel lines when I put the motor in the truck?
 
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