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1994.5 - 1997 7.3L Power Stroke Diesel  

Bad Injector?

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Old Jul 27, 2005 | 03:28 PM
  #1  
fordf350crazy's Avatar
fordf350crazy
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Bad Injector?

Can anyone tell me how to test the injectors to find out which one is causing white smoke and a miss? Any info on how to replace them would be appreciated.
 
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Old Jul 27, 2005 | 04:01 PM
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buzz test. Ford of injector shop will be able to help you out. Make an appointment at the ford garage, and ask them to buzz test your injectors with a WDS. they will, and while you listen, you may hear a difference in noise or tone of the buzz, thats your bad injector (simplified) process takes about 10 minutes to do. Also on your own, you can pull both valve covers and check the wiring harness, have seen many many get melted and cause a problem. its easy to see.
 
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Old Jul 27, 2005 | 04:44 PM
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I have replaced all the injector wire harnesses on the drivers side. I also had to cut out a section of the injector wires that went from the IDM to the upper wire harness connector, because it was melted together and bare wires were exposed. I am assuming that may have caused the injector to go bad, or vice versa.
 
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Old Jul 27, 2005 | 05:37 PM
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Stroker_Deezel
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From: Walla Walla, Wa
if you know anyone with a scan tool they can buzz test it for ya too. Make sure the truck is at full operating temp or you will have wasted 10 minutes.
 
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