Duramax Diesels Forum Truck of the Week
  #106  
Old 04-18-2018, 05:33 PM
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The fuse for the glow plugs is beneath the actual fuse box. Need to take it off and ohm it out. May fix that issue. Need to get that sensor back where it should be. If you’ve got blocker plates chances are a stock tune was flashed into it and there’s that issue fixed too.
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  #107  
Old 04-18-2018, 06:00 PM
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Ok so maybe the plastic cover comes off to expose that fuse. What sensor "needs to be back where it should be"? The truck came with an Edge CS is the glovebox. When I plugged it in, it said there was no CELs and that it was on economy level. Is there a way to tell it there are blocker plates on, or is that a whole tune type of thing?

I have a few pictures to post quick
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  #108  
Old 04-18-2018, 06:05 PM
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Maybe it’s just me but the pressure sensor you posted doesn’t look like it’s in anything. If the truck has blocker plates the edge won’t delete so there is those codes. And yes the plastic cover comes off to expose the fuse.
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  #109  
Old 04-18-2018, 06:08 PM
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  #110  
Old 04-18-2018, 06:18 PM
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The 1st picture I posted is the 122 sensor that isnt clipped to anything but has a hose going to the intake I believe. The 2nd picture is that relay I pulled out... that whole unit isn't bolted to anything, just laying there. Looks like 2 bolts, with metal sleeves, could be a ground for that unit. What should it be bolted to? I dont think I see anything in that area it could go on...
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  #111  
Old 04-18-2018, 06:37 PM
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The truck had an EGR, but it has been deleted. That much I can see very easily in the pictures. It must not have been tuned for the delete. That could explain the EGR and the MAF codes.
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  #112  
Old 04-18-2018, 09:03 PM
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The unit with the 2 hollow metal sleeves is the intake heater control . The intake heater is already removed and pluged, I can see that in one picture. Where do the wires go? Looks like one is bolted to the back of the alternator.

Thats the p0540 code.....
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  #113  
Old 04-18-2018, 09:26 PM
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In the first pic, the 122 sensor clips to the tab right above it in the pic. The tab is just bent up , should be at a 90 straight down from where it's bolted on.

I know you said the MAF looks clean, but you need to spray it down with MAF cleaner. You have an oiled filter, chances are it's been contaminated with oil from the filter.
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02 GMC 2500HD, EC/LB, LB7, 2wd, 6" lift, 35" tires. ds LML manifold, PPE 260 hp tune, boost valve, race plug, Airdog 165 lift pump, CAT filter mod, mechanical egt and boost gauges, SB intake, high flow turbo horn, ported turbo exhaust housing, kbd drop in wheel, Banks Bighead wastegate, egr blocked, intake heater delete, PPE downpipe, 5 " exhaust w/ cat delete, Mike L built trans w/ Goerend R converter. Levi's heat blankets

7-6-17...New headgaskets, studs, Fed heads, and LDS replacement injectors @ 202,239 Miles

Last edited by ChrisPerry; 04-18-2018 at 09:33 PM.
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  #114  
Old 05-03-2018, 07:56 PM
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This was in drive, about 180*
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  #115  
Old 05-07-2018, 12:33 PM
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Do you guys think I should pull the driver side or passenger side valve cover off 1st to take a peak?
The passenger side looks to have someone in there already and closed it up with new gaskets...
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LB7, Auto, 4x4, Plain A$$ Interior, 135k





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  #116  
Old 05-07-2018, 05:30 PM
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Are you ****ing serious. That was the first suggestion by many. Quit posting unless your ready to do something
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  #117  
Old 05-08-2018, 03:38 AM
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Well I'm going to have some free time coming up in a few days and I was wondering if I should stay away from the new gaskets or if that should be the side to do.
Did you see the picture of the balance rates?
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4/4/18 - Bought my 1st diesel
2003 GMC Sierra 2500HD - Crew Cab, Short Bed
LB7, Auto, 4x4, Plain A$$ Interior, 135k





Thank You Mr. Trump!
God Bless America <3
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  #118  
Old 05-08-2018, 06:11 AM
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Also, is there a thread with someone else's step by step, or something close that I can try to follow?
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2003 GMC Sierra 2500HD - Crew Cab, Short Bed
LB7, Auto, 4x4, Plain A$$ Interior, 135k





Thank You Mr. Trump!
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Last edited by MolonLabe420; 05-08-2018 at 06:18 AM.
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