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    GM PID's and Torque App

    Has anyone used the smart phone Torque App to log their Duramax? I have EFILive and it works great, but sometimes I just want to check something or verify a few PID's while driving down the road. If I get one of the OBD plug in modules and download the Torque app on my phone, can I just use...
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    SAC injector whine?

    Recently installed new S&S SAC00 injectors in my ~112K mile, 2004 LB7. The stock injectors were still in there and just starting to give off that raw diesel smell (haze) out the tail pipe. I've driven the truck now for a few months, and noticed that it has a weird sound that it didn't used to...
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    LB7 - Engine starts then dies - Reusing low pressure fuel hose clamps

    Just finished replacing the original LB7 injectors on my 2004 LB7 with 110,000 miles on it, with S&S SAC 00 injectors. Other than the usual pains of getting to the injectors, everything else seemed to go back together without too many issues. FWIW - I went ahead and pulled all the injector...
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    LB7 - Can I delay replacing injectors?

    Probably already know the answer, but timing isn't great right now. 2004 LB7 with ~110,000 one owner miles on it. Stock injectors. Always had 2 cycle to help with lubricity. #7 shows balance rate of 7.9 mm^3 ... the rest are within spec. A few hundred miles ago, I noticed exhaust smell...
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    How to tell if it is the power steering pump or the steering box?

    I have noticed over the last few years that my steering isn't quite what it should be (2004 K2500). After reading a lot of posts about how bad the steering is on these trucks, and that it's bad just live with it .... I am hoping that maybe mine is just a bit worse and could benefit from some...
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    A/C line leaking at fitting

    Just in time for some extra summer heat, my 04 A/C is no longer blowing nice and cold. A quick look at the A/C line shows that the quick connect fitting toward the front of the truck has some dampness around the cap. I'm guessing that this might be my leak and need to recharge the system. Is...
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    Steering center link - straight or dropped?

    Can anyone tell me which type of center link is better? straight or dropped? I've noticed that places like Kryptonite have a straight one while others like PPE have the bigger 7/8" design, but it still retains the dropped ends. From what I have read / observed, the inherent twisting of the...
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    Diesel fuel availability in KY, TN, NC and SC?

    Leaving in a couple weeks to go on vacation and will be hauling the camper down to South Carolina. Heard rumors for diesel shortages, and this last week noticed a couple of stations up here in the mid West that were out of diesel. I am wondering what it looks like along my intended route for...
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    Dragging brakes

    I have a 2004 K2500 with around 105,000 miles on it. A couple years ago my rear calipers would not release. So much so that it wore the inner pads down to nothing. I replaced those with reman calipers and that seemed to fix the problem. I have also already put in new brake lines and hoses...
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    Any issues with new GM CUV's?

    Looking at replacing the wifes 2012 Equinox and was looking at the options. So far split between just getting a new Equinox, or going to a Blazer. The current Equinox has been pretty good, but not real happy about the oil consumption of the 2.4L (known issue). I have also had to replace both...
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    Anyone swapped in GM stock replacement fuel lines?

    So I started to replace my fuel lines with the Dorman kit. Looked good, but didn't fit very well. Worst part was that the return line was about 1.5" too short up at the engine. So, I am sending those back, and was looking at just using the stock GM kit. Main issue I see is that the GM kit is...
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    Help! Broke off part of LB7 glow plug

    Long story short, ended up breaking the glow plug strap right next to the power wire. Decided that I better get that fixed. Went to remove the glow plug nut, and it snapped off. Went to the next glow plug nut and it moved a little, then it snapped the lead inside the glow plug. I have been...
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    Dorman Stainless Steel Fuel Lines Kit

    Getting ready to re-do my fuel lines and noticed that the Dorman stainless steel kit is only like $40 more than the GM one. Has anyone used / installed the Dorman kit on their truck? How well did it fit / work?
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    Does the L5P lift pump work in LB7 fuel tank?

    Looking at re-doing my old fuel lines and was hoping to add in an electric lift pump to my 04 LB7. I have seen the Fleece unit and it looks very nice, but a little more than I would like to spend. Got to thinking about if one of the stock GM lift pumps from a 2017+ truck might work. Was also...
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    Could a BCM cause this?

    Not quite a Duramax issue, but still GM related. Wife's 2012 Equinox (we are the original owners and it has ~110,000 miles) just left me stranded and had to get it jump started to get home. This is the 2nd time it has done it (last time was in the fall). Battery (Duralast Gold) is 2 years old...
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    Kodiak AC configuration

    Not sure where to put this, but I am working on trying to understand the differences between the standard Silverado AC system and what is used on the Kodiak trucks. Looking at the code shows that these two different systems utilize different inputs. The Silverado's typically had a low and high...
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    Changing radiator hoses

    2004 LB7 with ~100k on it. Truck gets used occasionally as tow rig for camper / car hauler. No real issues, but am starting to wonder about IF I need to change out the radiator hoses when I do the coolant again. FWIW - they look OK, but obviously, they will start leaking from the inside...
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    CP4 class action lawsuit against GM

    Not sure if this has already been posted, but just saw that there is a class action lawsuit against GM for the CP4 failures. https://dieselprogress.com/more-legal-woes-for-gm-diesel-28292/
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    Advice for getting stainless brake lines to stop leaking at the ABS

    Just swapped out the original brake lines on my 2004 K2500 with the Dorman stainless pre-bent ones. Got them all in OK, but am having some issues getting two of the fittings to stop weeping at the ABS unit. The other three do not weep at all. Anyone have any tricks to getting them to stop? I...
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    TSB's for 2.4L Ecotec? Oil consumption

    So my Dad's 2012 Equinox has started to have a drinking problem. Around 2 quarts in a little less than 6000 miles. The car has ~60k miles on it now. No hard driving, in fact it's mainly highway miles. I know the early DI 2.4L's had issues, but I thought that the 2012+'s had some of the fixes...
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