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1994.5 - 1997 7.3L Power Stroke Diesel  

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Old Nov 14, 2006 | 06:29 PM
  #16  
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SavageVertigo
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From: Maple Ridge, BC
Hmmm and your sure your getting power on the load side of the GPR? and fuse 22 is good? I think you may have another issue going on here... Does the tach move when your cranking it over? If not its the CPS thats toast.
 
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Old Nov 14, 2006 | 07:01 PM
  #17  
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If it's cranking too slowly the PCM won't enable the injectors. The computer needs to see a certain rpm before it will let the injectors run. You should probably get your starter tested.
 
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Old Nov 14, 2006 | 07:01 PM
  #18  
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From: Odessa
well i replaced the CPS like a year ago also, i bought it from international, could it be shot that soon
 
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Old Nov 14, 2006 | 07:04 PM
  #19  
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ok well you got me thinking on that tachometer thing, so i just went outside and tried starting her up again. and the tach does not move when i crank
 
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Old Nov 14, 2006 | 07:26 PM
  #20  
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Electronics are funny that way, good one minute then pooched the next... Some guys have had a CPS go 200,000 mile some have had them go in 20,000 miles. Is your truck still cranking slow??
 
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Old Nov 14, 2006 | 07:29 PM
  #21  
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From: Odessa
yeah, its still cranking slow
 
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Old Nov 14, 2006 | 07:40 PM
  #22  
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For the no tach movement, do you have a buddy around that has the same year truck? You could try his CPS, not sure how to test them other than possibly retreiving a code... As for the slow cranking, it could be a bad cable to the starter, a bad connection, or the starter itself is getting weak...
 
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Old Nov 14, 2006 | 08:09 PM
  #23  
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theres a few trucks around here with the same body style, i dont know about the same year. but i have an old one i had taken off b/c i thought i had shot that one but i think it is still good
 
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Old Nov 14, 2006 | 08:15 PM
  #24  
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can't hurt to try it, put it in and see if u get tach movment. i think you should get a few hundred rpms will cranking over
 
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Old Nov 14, 2006 | 08:21 PM
  #25  
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Found my hard start checksheet, and it has to be cranking at a minimum of 100 rpm to enable the injectors. If you're still having trouble with a good cmp, you really should check out the starter.
 
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Old Nov 15, 2006 | 12:27 AM
  #26  
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From: new orleans,
Talking

GLOW PLUG RELAY
 
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Old Nov 18, 2006 | 11:00 AM
  #27  
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ok so i checked the fuel pump and it works. All relays and fuses are fine. I dont know what to do. Could it be my computer?
 
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Old Nov 18, 2006 | 12:43 PM
  #28  
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Ok, you said it cranks for about 5 seconds and then really slows down. You say that the batteries test good. You have checked the cables and they all look good. You say it still cranks slowly. You say no smoke is coming from the tailpipe. Let me be clear here, it will not start if it is cranking at less than 100 rpm. No fuel will be enabled (hence no white smoke) unless it is cranking at at least 100 rpm. I have seen 7.3's with weak starters and good batteries crank at 93 rpm for 2-3 minutes straight and they won't start. There are other possible reasons for not starting, but if it's cranking slowly, then that's where you need to start.
 
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Old Nov 18, 2006 | 01:08 PM
  #29  
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i tend to agree w/ spike on this one.when my starter went bad on mine she cranked slow,but would not kick.even tried my 800 amp boost attatched,still slow crank,no go.changed starter charged up batteries and wa-la !!
 
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Old Nov 18, 2006 | 02:42 PM
  #30  
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but i went and exchaged the batteries yesterday, they were still under warranty. but it still doesnt want to turn over. Thats why i think that it could be the computer
 
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