3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Injectors??? My buddy needs help.

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Old 02-26-2008 | 07:15 PM
  #16  
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Originally Posted by vzdude
The batt temp rationality code is due to using the block heater. There is an ECM reflash to correct that issue.
Can you explain this alittle more. Why would using the block heater cause a code?
Old 02-26-2008 | 08:44 PM
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My 2007 5.9's #5 injector took a dump today
Old 02-26-2008 | 11:12 PM
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i should know more about mine tomorrow. they replaced all 6
Old 02-27-2008 | 01:42 AM
  #19  
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From: Vegas
Lost an injector last week in Oklahoma, rig started idling rough andd had a nasty miss all through the RPM range. Turns out one was completely shut down and another was very erratic. So, ran back here with a stack of trailers basically on 4.5 cylinders! Still pulled the hills at 75 MPH! Replaced all 6 with a set of low mile bodies with some DD2 nozzles. All this after I just changed them out 3000 miles ago, same issue for the most part, had a rattle going on that did not sound right. Pricey **** things!!
Old 02-27-2008 | 07:13 AM
  #20  
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Originally Posted by MTC
Can you explain this alittle more. Why would using the block heater cause a code?
It causes the ecm to see an excessive differential of temperatures between the coolant temp and the air intake temp. It thinks one of the sensors is reading inaccurately, when in reality it is fine. The dealer can reflash the ecm to "accept" those numbers upon startup in certain temperatures.
Old 02-27-2008 | 01:57 PM
  #21  
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Originally Posted by vzdude
It causes the ecm to see an excessive differential of temperatures between the coolant temp and the air intake temp. It thinks one of the sensors is reading inaccurately, when in reality it is fine. The dealer can reflash the ecm to "accept" those numbers upon startup in certain temperatures.
Thanks for the clarification...I actually read the paperwork today and it says that the code was a "false code"...

Thanks for the replies...hes just gonna watch the oil level and hope for the best.
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