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  1. D

    Need some technical advice...

    I can't open the zip files on mobile. Can you tell us what fuel rail pressure were compared to demanded? Sent from my SM-G960U using Tapatalk
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    To the junkyard or not?

    I would be doing a compression test before going any further. You statement about using ether to start it throws a red flag to me that you have low compression on atleast 1 cylinder. Could be injector related but if it needs ether to start im going to say there is something more at play here...
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    Need some technical advice...

    When you pulled the glo plugs did you happen to take notice to their color? Any of the oddly colored from the other? Were any wet? Can you get us any fuel rail pressures? You need a scanner to do this. Compression looks good so it looks like we are headed into a fuel delivery issue. Before we...
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    Need some technical advice...

    There has been several replies here about a compression test. It baffles me that this is ignored time and time again. IMO I would not run that truck. Sounds like it has a major knock. I would seriously doubt something out of a bottle will fix your issues. Without knowing a compression test...
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    Need some technical advice...

    Stop throwing money at it and do some diagnostic work. Compression test should be first before anything else. Harbot freight has a decent compression test kit for cheap if you don't have one. Identify the cause of smoke... oil, fuel, coolant? The volume of smoke would concern me. I would not...
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    LB7: LB7 fuel in coolant, how?

    Injector cup not seated in the head? But of that was the case you would think the coolant system would be over pressurizing and you would be losing coolant Sent from my SM-G960U using Tapatalk
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    Allison 5sp: Bad NSBU??

    There is a possibility that it's the nsbu. Have efi live? Having access to something that can read body and trans codes may tell you alot. But we can start with the basics. Have you checked the transmission fluid level? Low fluid level can cause all sorts of shifting issues Sent from my...
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    LB7 no power, no codes

    Is truck building boost? With the heads being off there are so many possibilities of what could have happened. Any codes? Sent from my SM-G960U using Tapatalk
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    Ticking noise when accelerating

    Listen in through the driver's side wheel well... see if it isnt loudest there Sent from my SM-G960U using Tapatalk
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    Ticking noise when accelerating

    Sounds like my lb7 did after doing headgaskets and valve adjustment.... and 10k miles later it dropped a valve... dont want to scare you tho. So there is a possibility ots pilot ignition but that seems like its definately too loud for pilot. Someone else will chime in hopefully that knows more...
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    Ticking noise when accelerating

    Can you determine if the ticking noise was coming from one side of the engine or the other? Sent from my SM-G960U using Tapatalk
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    Lb7 wont start

    So you confirmed your getting fuel to the cp3? Have you checked the pins on the plug to the fuel pressure regulator? If your getting fuel to the cp3 but not out, seems like you found where to look Sent from my SM-G960U using Tapatalk
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    Lb7 wont start

    Not sure it would throw any codes without starting. I'm no expert on this just know what has happened to me. Did you check the harness near the ficm for chaffing? Known issue on these and you had that side apart. Could have tweaked it that it is grounding out. I've learned the hard way that if...
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    Lb7 wont start

    Are you sure you did not knock any of the insulators off that are between the terminal post on top of the injector? It's a small plastic piece that can easily be knocked off. Of 2 are missin it could be shutting both banks down. Not sure it would throw any codes without starting tho Sent from...
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    New long block first start up issues

    Removed entire wiring harness. Checked injector side of the harness for broken chaffed wires. Checked all wires for continuity and all checked good. All injectors are reading .3-.4 ohms. Sent from my SM-G900V using Tapatalk
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    New long block first start up issues

    Installed a new long block and had first start up yesterday. Was a bear to get started and when started only ran on 4 cylinders. Codes include p0201, p0207, p0204, p0206, p2146 It's shutting off bank A. Checked injector harness connections ficm connections, ecm connections. No bent pins...
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    p0193

    Check bale connectors on the drivers side., I had the same thing when I did my headgaskets and started with a major lope. Was defaulting to max rail pressure. Ended up being a pin bent in the bale connectors. Sent from my SM-G900V using Tapatalk
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    LB7: ‘03 No Start Without A Little Help

    Prime it up using the primer on top of the filter housing. If it's a priming issue the prime should get hard and truck should start fairly easy Sent from my SM-G900V using Tapatalk
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    LB7: ‘03 No Start Without A Little Help

    Once warm things expand and can cause higher compression therfore a starting easier while warm... can also check to make sure the fuel system is staying primed... could be losing prime over time also. Starting with wd may get it running to get the fuel system reprimed... alot of variables here...
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    LB7: ‘03 No Start Without A Little Help

    I wouldn't touch it without a compression test... needing wd throws a red flag up to me for low compression. Just my 2 cents I would also be checking for blowby out of the oil filler neck. Sent from my SM-G900V using Tapatalk
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