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My 1st thought as well, oddly when observing data trend on scan tool, this Topdon lets me graph 6 parameters real time, while holding steady state rpm 1800-ish rpm in driveway, all parameters stable, desired and actual timing match, 3 psi boost on gauge, no active codes showing after clearing...

Returns are per GM back to the tank, most of the time I'm running single GM lift 32gph pump, I still have a mechanical gauge on the line, if I see due to heavy load I will swap over to the 45 gph Walbro FRB-5, or both if loaded and climbing a mountain

My tee is at the outlet of the FFM before the IP my FFM is on the inner fender driver side on 2 pieces of 1/2"-13thread, clamped thru the fender with washers & double nuts, and "ears" on the FFM mount, both lift pumps running or single lift pumps make no change but I will verify rubber hose into...

Run through this even with FASS if your tank sock is plugged up you may not be getting fuel to IP, https://www.thetruckstop.us/forum/threads/lift-pumps-ops-operation-and-troubleshooting.6872/ also check gnd and power to the FASS pump those are pretty loud you should hear it running. Where/how...

Some may or may not remember the origin of "Crawl..Crawl.... Stagger ....Stagger" this is how my 98 K1500 has been running since yesterday It had been running fine locked in cruise control for about 100 miles @ 70-75 mph 2500-2600 rpm, then it started to stumble badly, like a load of crap...

As do I, several around here with them saying mixed bag kind of like 6.5s, I was looking seriously at Turbo Max gasser as well, deal was right on the 3.0 and I don't normally do extended warranty, but did this time just in case I do have issues, about 4 K miles from expiration of chassis factory...

If you have a gasser Canyon or Colorado here is a nice tune for it, it was on the truck I traded in https://www.trifectaperformance.com/

Yes traded it, it was nice 3rd one down the list here https://www.longlewis.com/used-inventory/index.htm?normalDriveLine=4WD&year=2020 black at 58,8K on odometer, I had mild Trifecta Tune in it usually 26 mpg on highway, 22 mpg avg city/highway combined. I wasn't really needing new truck...

Just picked up a 2024 3.0L GMC 1500 4x4 CC with 32K on odometer yesterday, so far so good drove 300 miles to go get it, have put 350 on it driving back and local driving last night. Traded my 2020 GMC "gasser" Canyon on it, liked the Canyon, but Loving this truck so far. It has room and...

Well been a long time coming I guess; getting my immersion to DMax engines, I traded my 2020 Canyon "gasser" for a 2024 Sierra with 3.0L Dmax 32K miles on odometer, it was 4 hours to go get it, had a very fun ride driving it home good power and acceleration mpg if onboard mileage meter is...

Has anybody ever found source part # of the in tank "sock" gasser socks do fit but do not have the bypass check valve in the end in case cold weather "gells fuel" over gasser style screen. I kept mine as it is 70 micron protection that the 6 micron on engine would have to manage unless you also...

I have rebuilt 2 of the HB units with the kit from Pirate Jack https://piratejack.net/hydro-boost-rebuild-kits/ one thing you have to watch for is correct rod length, and config of your HB some have a threaded rod end, and others you have to cut and reweld back after the rebuild, depending on...

Good advise here thus far, if you are unclear what your rigs configuration is, look in the glove box if still legible, there should be a sticker with the RPO codes that will tell you what options your Burb came with, multiple RPO code converters on the web to put cod to a description what it...

I like the dual pressure reading across the FFM in/out in your signature. I did a a vac. switch to light up LED on gauge pod to let me know it is getting dirty, but I think I will be adding a second or a DP gauge setup to get a numerical value for full or partial blockage across the filter...

WoW agreed it does feel so much better to be validated over being vilified, a shame the "haters" made some of us feel no longer welcome here.

Yes delivered fuel pressure to IP will tell us a Lot, you can have bad fuel and plugged filter at any time, lift pumps known to fail as well. I got bit by weak lift pump myself earlier this summer in May doing some disaster relief volunteer work in NC mountains near Ashville, truck ran like a...

Or more fuel, what are you running for a lift pump? I got bit myself in May when doing disaster relief work in NC mountains, fI orgot to look at my IP fuel inlet pressure gauge @ a hair above 0 running factory lift pump, kicked in my Walbo running in parallel with the factory IP inlet back to...

Fuel starvation, bad/weak lift pump, in tank sock plugged, fuel filter in engine bay getting dirty, I don't know if 6.2 fuel tanks are internally baffled like later trucks have, but if the baffle has moved and fuel level is low the sump part of the baffle flopping around could lead to...

Looks like you know your way around metal. Im liking what I see and wish we were closer, have you considered add in some metal stiffening across the "C" frame in stress areas, basically making it "square tube/box beam" , I did that on a rotten frame repair on my 1990 GMC C1500s frame.

Hard to see from photo, but sort of looks like you have 4" DWV pipe(thin wall) you are trying mate to schd 40 thick wall pipe both are schd 40 pressure rated but different diameters, if you have potential of root intrusion or possible crushing with driving over it if not buried deep enough, or...