1994.5 - 1997 7.3L Power Stroke Diesel  

Big Help Needed, No Start

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  #16  
Old 09-10-2012, 06:45 PM
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Originally Posted by thebig350
Just got back from O'Reilly's, both batteries are good. I can't check the cranking voltage as I have no voltmeter (BIL broke it and hasn't replaced it yet). The fuel bowl has not refilled with fuel after I drained it the first time, and I have been cranking on it plenty. I can't switch to my other tank because my other tank has an unresolved clog/issue with it.
That make think that you have another clog problem now = fuel problem.


 
  #17  
Old 09-10-2012, 10:40 PM
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I agree that is seems fuel related. I noticed in your video that your guage is reading under 1/4 tank. I have had it in other vehicles where a weak pump would become symptomatic at low fuel because of having to draw fuel up the whole length of the pick up tube. I would throw some more fuel in it and give it a whirl. You really aren't out anything because you will ultimately use the fuel anyway. Best of luck!

-Joseph
 
  #18  
Old 09-10-2012, 11:29 PM
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Fuel problem! But, in the vid the voltage gauge is buried to the left, mine never is that far over. The glow plugs are sucking what little the batteries can give. Replace with two new batteries (I hate it when the auto store says they are good), fill up the fuel filter bowl and like Joseph said add some to the tank. It would be nice if you could disconnect the glow plugs to see if there is enough juice available for a start. Also Brian, clean the dust off the dash, it will help the way your feeling now, LOL. Good luck.
 
  #19  
Old 09-11-2012, 08:42 AM
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Dammit Glenn, that did put a smile on my face. I pulled the alternator off last night and had it tested, it failed, so I replaced it. Volts are pretty low, but couldn't that be from all the cranking I have been doing on it? Also, now when I crank it, there are two lights that come on; the first is the ENGINE TEMP and the other is FUEL FILTER. They're on the same cluster as the WTS light. I am going to drop my front tank and see what's what with is this afternoon, and put some fresh fuel in it and see what happens. I don't know if it is a fuel pump issue, as the valley is dry and nothing is coming out of the weep. Sound right?
 
  #20  
Old 09-11-2012, 08:53 AM
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The other thing you might try to eliminate the pump as a possibility is to disconnect the lines at the fuel selector valve, get a can of good clean fuel and then put some hoses on the lines to the engine and stick them both into the fuel can you have. That would eliminate a clogged pickup in the tank, a bad selector valve, etc. If it still doesn't fill the bowl, then I would be thinking it is a bad pump.
 
  #21  
Old 09-11-2012, 05:47 PM
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OK, well I am a little naive on the fuel system, so the fuel pump on the block is pulling fuel from the tanks into the fuel bowl?
 
  #22  
Old 09-11-2012, 06:16 PM
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Yes it does and the excess, fuel the motor doesn't use, is returned to the tank.
 
  #23  
Old 09-11-2012, 08:40 PM
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Ok. I don't understand how I can be reading so low on my voltage gauge yet both batteries are fully charged. Could it possibly come down to the wiring harness off the passenger side battery being bad?
 
  #24  
Old 09-11-2012, 08:56 PM
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Definitely check all the battery cables and terminals.
 
  #25  
Old 09-11-2012, 09:38 PM
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Ya Brian, sometimes those cables will go bad inside and look good outside.
 
  #26  
Old 09-11-2012, 11:16 PM
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Or your glow plugs are pulling too much battery power.
 
  #27  
Old 09-11-2012, 11:23 PM
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Ya, that's why I suggested turning them off for a try at starting.
 
  #28  
Old 09-12-2012, 12:06 PM
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Unless its the idm itself that is bad, yes? If the idm crapped out than that could also explain the improper reporting of true voltage and the warning lights, yes?
 
  #29  
Old 09-12-2012, 12:37 PM
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Sure the KIDS didn't switch tanks to the bad one ... ... has happened before.

Don't worry about the IDM now, got to get fuel in the bowl first.
 
  #30  
Old 09-12-2012, 01:52 PM
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I agree, Jim, but even with a full bowl of fuel I am not getting it to start.
 


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