lpg

thanks as well. as far as the more expensive maintenance goes- what are the common items between more quarts on the oil change? in terms of overall maintenance? Similar fluid changes as 1500 but on different scale? i.e diff,transfer, trans etc? anything on the 2500 vary from 1500 general maintenance? apologize if these are intro to 2500 '101' questions...

likely switching from the 6.2l 1/2 ton to a 3/4 shortly. main reason is towing comfort with travel trailer. Were within the capabilities of the 1/2 ton but it still feels a bit uneasy or unsafe at times, both braking and being blown around on highway. Mileage is poor, but a lesser concern. In my research of the newer diesels, there is lots of talk about emissions related problems... and how expensive all repairs are on these LSP. But really how much really goes wrong on these motors within the first 1-200,000 miles? In summary- the question is what are the most common things that will go bad within the first 150k of ownership on a 6.6 LSP Duramax? and are the costs of these repairs really astronomical? Been years since ive run a diesel and really out of touch with their maintenance. thank you

theres gotta be some sensor issues. have some weird things happen with mine. sometimes doesn't close, then does a close, open motion when reopening door, etc. may be sensor related.

not ideal, but what about auxiliary tank in bed wired to 12v switch, dumping into filler hose? seems we could put another 30 gals in bed tank and power up vent, to fill tank, without stopping truck

if it just happened youll be ok. Just hope they change all 16. The damage would come from longterm use and metal pieces hypothetically getting pushed through motor. I had a motor with four wiped cam lobes ran for a few thousand miles, rebuilt and ran fine. No oil pressure issues, etc.

very weird the other day, the monitor on my programmer had tranny running about 50 degrees higher than the dash showed...almost 200 while at idle. Going to do some digging and see which was right

Still happy with it. Would be cool if they had the ability to custom tune it, so we can send out to diablew, but till then the usually options are helpful. Dfm and auto start disable, tune, tire size change, read and clear dtcs….

Have had a rear lift and level on 2019 Denali no problems… people report issues with uca after level, but if you’re concerned buy a kit with new uca. I did not change uca, just lower spacer, and no issues

Diablo tuner works. Just gotta send computer out to unlock

no rubbing on the bottom plastic fender? may be the spacer helping

Has anyone found actual shop manuals for these trucks? I know available online thru ac delco etc but super expensive for monthly subcriptions. anyone know of anything yet? things like trans flush etc seem more complicated than ever, and don’t want to wing the next few jobs on this truck

2019 has been solid. No issues besides rear window.

Thanks for replies. Any links to product used?

the question was really if there is a similar option

Yes I was curious if this was an option on the newer 6.2 with 10 speed? also curious if there is any long term feedback on let’s say a 170 t stat on the motor?

We have ceramic coated cars and I think it was the best thing I ever did. few notes I don’t see anyone mentioning if you ever need to buff out little scratches, you will remove the coating, so either live with the scratches or redo coating in that area. not sure whether it’s my wash method or the coating but my truck has no swirl marks whatsoever after a coating that’s been on for a few years now. A waxed vehicle would never have maintained a swirl free finish for that long. Way I look at ceramic is a long day or two work to apply, but about two years maybe 3 or worry free protection. We’ll worth it. I used cquartz uk 3.0 cars still head great after a few years, except hood and roof which the sun have beat on.

Read a lot of topics on flipping pill on 14+ trucks to lower trans temp. has anyone attempted this (or is it even an option ) on the newer ten speeds? what about changing out motor t stat?

Oil pumps variable. The magic number I thought i heard for low pressure which could damage the afm dfm lifter is 27 or something. mine often does go down to 30 and seems normal. if you’re losing oil that’s another story. Check the dipstick

after driving for a while, the tcm unlock will be real nice. There is alot of downshifting and some hard shifts that dont feel right, i think attributed to the disabling of dfm. Not sure if they do plan on unlocking tcm or not, but hope they do.

I know it’s been a while, but I have the Diablo tuner and it does not modify the trans. I think the trans is still locked. Programmer is just motor related

You doing straight muffler delete ? I know a lot of guys say it’s fine( Pre 2019 is actually). But it sounds like ******. Drones horrible for some reason on newer trucks. I have 6.2 but 5.3 will be similar.

Added 50 rpms to park idle and drive idle and it’s running real smooth…

My point in writing was that the motor is running perfect if fuel trim is near zero. not sure what may be causing idle to seem rough but I don’t think there’s any problems or any fuel related system to be cleaned.

I had the same question on my 6.2. Was about to run a “cleaner” through but checked fuel trims to see if injectors were dirty, after 40k miles, they’re nearly perfect…. So unless there’s some other fuel related issue, they probably just idle a little rough. fwiw, my afm is disabled

There may be, I just never drive it that hard, the bigger tires dont help either