Search Results for ‘l5p’

Engine has a pretty loud tick when I first start it up, sounds like it’s coming from the drivers side but it’s hard to determine. It also increase with RPMs Once I drive it and get it up to operating temp. It seems to go away. I’ve listened to typewriter tick but this sounds a little bit...

Hi everyone, so I deleted my 2018 L5P over the weekend and had MotorOps tune the truck with there SOTF tunes. 2 of my monitors (fuel trim, and boost pressure) haven’t set yet after about 200 miles of driving. Does anyone have motor ops tuning in there trucks and can confirm if there’s ever set...

2018 Chevy 3500HD Duramax L5P 104,000 miles.... I initially had P003A and so I just replaced the VGT Actuator w GM Part 12708802, (long story just to get the actuator), after install, no codes were confirmed after ignition cycle, but permanent code still existed P003A, with no CEL. I took it...

Hi gents, new here so bear with me. New to the diesel world with a 2019 2500 L5P Denali. Bought used at 67,000 Km now at 74,000 Km. Had a low coolant warning last night that turned out to be false as its full. I did open the coolant lid to check while hot so it did spill some. This morning...

I know it's frown upon to speak about deletes but does anyone know the location of the can bus plugs I know of the two nox sensors the one by the fire wall on the driver side the one on the passenger side frame and the big one behind the def tank for the module. I have another one that looks...

2023 Chevy 3500HD DRW I am looking into installing an airlift suspension kit but am confused on what I should do as far as the front end. My over all goal is to get some 35/12.50r22 on the truck, achieve a great ride while hauling, and making a nice looking truck I am also looking @ Cognito...

New to me 18 L5P. When engaging my truck in fast idle does the egr close? From the upper Midwest with cold winters so would like to allow my truck to idle a little bit without recirculating the crud.

If I run a tune instead of going through all the trouble of removing the EGR is it ok to leave it in place? Will the tune keep the egr from functioning? Only reason I ask if the soot build up I've been seeing in posts. I want this truck to last. Let me know my options, reccomendations

I've been noticing a decently loud whining noise (almost sounds like a supercharger in a way) coming from the area of the turbo when the engine is cold. Only hear it when I'm accelerating. Once the engine gets to warm operating temp I don't hear it anymore. Doesn't seem to have any noticeable...

I unplugged the batteries the other day due to my StabiliTrak, ABS, Traction Control, and trailer brake warnings coming on when I turned left only. Wanted to check some sensors so naturally, I unplugged the batteries before doing anything as you should. When I hooked them back up the actuator...

So I’ve done some digging on here and haven’t found a answer to a question I have. I have a 2019 2500 with a intermittent stabilitrak light and reduced engine power. There is no rhyme or reason to the condition and I have a difficult time getting any codes for it. Both my scanner and the...

Hi everyone I have a 2017 Sierra 3500HD 6.6 L5P with 113k miles. At about 90k miles I noticed that there was an oil leak coming from the bottom of the truck. I finally got under there and noticed that it was coming from the upper oil pan. I started working on it and have removed everything that...

Hey everyone, I recently got an econobox commuter and my 2018 L5p kinda sits all week now. It definitely gets driven on the weekends for long trips towing. My question is does anyone see any problems mostly with the def/ scr system sitting for a week or 2 at a time? I figured I’d put this in a...

So I’ve been wanting to install this kit for quite some time now and finally pulled the trigger. Before I was running a 3.5 leveling kit from rough country and I absolutely hated it. Everything from the ride quality down to the angles, absolutely terrible. 10/10 would not recommend to anyone...

Hi everyone, I’m relatively new to this whole diesel thing and just want to make sure HotShots EDT is safe in the L5P specifically the water emulsifier/ demulsifier part. The information on weather or not these trucks want a demulsifier like HotShots edt is unclear. Is there anyone on here that...

2019 LTZ 2500 101xxx miles, not stock. Revised post. I’ve been running this truck for the last 11,000 miles with custom tuning with zero problems until 3 months ago. I brought the truck down to the border of Texas for work and everything started going wrong. Originally the truck started...

2019 LTZ 2500 101xxx miles, not stock. I feel as if I’ve done everything I know to do other then completely strip every inch of wire loom and inspect every wire in this truck. backstory. I’ve been running this truck for the last 11,000 miles with custom tuning with zero problems until 3 months...

Anyone running Rotella T6 full synthetic in there l5p or is the general consensus that these motors like Mobil delvac? And follow up question is anyone happy with conventional over synthetic or vis versa for any specific reason.

So I have 3 glow plug related permanent codes and no warning indication on the dash. Does anyone have any idea why? Truck is acting totally normal, is there any chance the previous owner changed some of the glow plugs and never did a glow plug relearn and therefor I have un-clearable permanent...

Hi everyone, I am new to this forum and to owning a 2018 l5p and therefore also new to using def. I bought 2 jugs of blue platinum (haven’t dumped them in yet) but red in a few spots that the regular blue and blue platinum is harmful to the newer diesels sensors. Any info on what everyone is...