Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

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  #1  
Old 06-28-2008, 07:14 PM
01quadcab's Avatar
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so the other day my neighbor mentions his cel is on again. his truck 02 dmax 51xxx on the clock. has 4" turbo back system,aem cold air intake and edge juice with attitude. the truck has been throwing p0380 off and on. It does it when it's cold or hot. so is this still covered under warranty? the truck also had p1093 this was the first time for this one. if he does take it in should I totally remove the edge system or can I leave the overhead unit in place and just unhook it so they can scan and if they have updates update the computer? I would have him get on here but he can't type very well and I do a lot of the work on his truck
 
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Old 06-28-2008, 07:25 PM
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I think if hes worried about his warranty.. the Turbo back exhaust voids that anyways.. If it was me, Id leave the heads up display there, and just return it to stock and unplug it.. if they ask about it, its just a monitoring unit to monitor EGT's and boost.. thats what I'd do, but Im by far a Diesel expert..
 
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Old 06-28-2008, 07:39 PM
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I thought the exhaust would only void exhaust warranty that should not effect the glow plugs etc right? edge only been on for 10k miles or less he has had truck since new
 
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Old 06-28-2008, 09:32 PM
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when was the last time he changed the fuel filter
 
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Old 06-28-2008, 11:58 PM
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Depending on the dealer they may not care about the mods. The injectors have a 200,000 mile warranty but the other things are 3-36,000 IIRC.

I would not worry about the exhaust, they are not stupid when the see the display they know what is going on so he may want to leave it in there and play the honest card.

I agree with Danny on checking the FF.

P1093 low fuel rail pressure.

P0380 is glow plug related most likely.
 

Last edited by TCU Fan; 06-29-2008 at 12:04 AM.
  #6  
Old 06-29-2008, 01:13 AM
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he has the filters on done regularly he doesn't drive a whole lot but is going in for a new one soon. he may have put 12k on it in last year and sure the fuel filter was done less than that. I know I need to unplug the edge incase they reflash the computer as it can damage it. but I will leave the monitor in. I know a guy in parts at the local dealer so shouldn't be a problem
 
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Old 06-29-2008, 12:22 PM
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fuel filters can clog up in 8k depends on the fuel.


U dont want to hear the other stories about what the p0380 might be
 
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Old 06-29-2008, 02:02 PM
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thats why it's going to dealer soon
 
  #9  
Old 07-02-2008, 12:57 AM
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turned out 2 glow plugs where out and they did fuel filter change. glow plugs were totally warantied thanks for the help guys... now he can make his trip to his nieces wedding and then yellowstone
 




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