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Old Jun 11, 2013 | 06:11 AM
  #1  
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rjrandy96
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white smoke

I have a 7.3l idi, and when you rev it up past 2000 rpm it starts to billow white smoke and backfire. when i say backfire i mean it sounds like unburnt fuel is going into the headers and burning in there. The injectors were just replaced a year ago and have only a few thousand miles on them. I need to figure out whats wrong with this i need it running soon. thanks for the help
 
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Old Jun 11, 2013 | 07:47 AM
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From: Mi'kma'ki
no water in fuel light? did you drain the bowl to take a look anyway?
 
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Old Jun 11, 2013 | 01:56 PM
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I replaced the fuel filter and also tried draining it. I also bleed the lines of any air.
 
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Old Jun 11, 2013 | 02:00 PM
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Sounds like IP
 
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Old Jun 11, 2013 | 10:02 PM
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thats what i figured. il only be able to come up with enough cash to do either injectors or Ip i just need help to see if theres any way for sure i can tell if the ip is bad?
 
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Old Jun 11, 2013 | 11:45 PM
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Originally Posted by rjrandy96
thats what i figured. il only be able to come up with enough cash to do either injectors or Ip i just need help to see if theres any way for sure i can tell if the ip is bad?
You can have it flow benched, but it will cost... best alternative is find a used one and see if it fixes your problem. Before that though, try filling the filter with ATF, run it into the pump and let it sit for a day or overnight.
 
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Old Jun 12, 2013 | 06:39 AM
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alrite atf couldnt hurt. it just clean everything up real well. how much would a used one cost?
 
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