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97 powerstroke cold start and hesitation

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  #31  
Old 05-02-2012, 04:10 PM
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How To: 7.3L Powerstroke Injector Removal and Installation
 
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  #32  
Old 05-06-2012, 09:05 PM
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Originally Posted by fordpride
If you have oil blowing out of the injector near the head then you have bad oring.

The injectors that don't have oil coming out of the spout are dead. You need to ohm the solenoid. If they have no more than 5 ohms the solenoid is good and you have to replace/rebuild the injector. If the solenoid is bad you can but just it.


ok pulled the injectors that were not spitting out oil and ohmed them they are right about 3.5 ohms. is that whats its supposed to be or does it need to be closer to 5 ohms.
 
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  #33  
Old 05-06-2012, 09:10 PM
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That's dead on. Did the tips have a bunch of carbon build up on them?
 
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  #34  
Old 05-06-2012, 09:12 PM
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yes a lot and these were the ones that did not have any oil comming out of them
 
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  #35  
Old 05-06-2012, 09:21 PM
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Pull the solenoid off the injector and youl will see a square plate. See if you can get a .002 feeler gauge under that plate I'm willing to bet you can't.
 
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  #36  
Old 05-06-2012, 09:27 PM
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NOPE NOT A CHANCE IN GETTING THE GAGE UNDER IT so its a bad injector?
 
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  #37  
Old 05-06-2012, 09:30 PM
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Yep. The poppet valve is worn into the injector and is out of spec and need to be rebuilt. Have all 8 rebuilt at the same time bout just the bad ones
 
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  #38  
Old 05-06-2012, 09:34 PM
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ok thats what i thought.

one more question how much oil should be comming out of the injectors when its running? because none of the injectors have very much oil comming out
 
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  #39  
Old 05-06-2012, 09:43 PM
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The should be spitting out a decent amount
 
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Old 05-06-2012, 09:43 PM
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also i do not have the $1300 to get the injectors rebuilt but my local wreaking yard has some used ones for $50 a piece. can i just replace the ones that are bad,or will that be bad for the truck
 
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  #41  
Old 05-06-2012, 09:44 PM
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Originally Posted by fordpride
The should be spitting out a decent amount

so the ones that are just spitting a little are almost warn out
 
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  #42  
Old 05-06-2012, 09:51 PM
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If those 3 went out it want be long before the rest go.

Rosewood builds start at 500 plus bad parts
 
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  #43  
Old 05-06-2012, 09:53 PM
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yah i talked to rosewood and they said it would be about $1300 for everything with shipping because i have over 300k on them
 
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  #44  
Old 05-06-2012, 09:57 PM
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but i can get the rebuilt as stage one for the same price
 
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  #45  
Old 05-06-2012, 10:01 PM
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If you put the usEd ones in start saving your penny's. You'll have to rebuild/replace them before long
 
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