Nov 12, 2025 · L5P Loud vibration when towing up hill larry.hayes.75 Oct 15, 2025 Replies 7 Views 221 Oct 17, 2025

Apr 24, 2025 · I have a 2017 L5P, it’s deleted and tuned. Had a head gasket failure. Ran fan coming in my shop started great, sounded great etc. get the cab back on, plug everything up whole nine, crank …

Jan 25, 2018 · What do we know about these new LP5 injectors? I was doing some browsing last night and came across a site selling stock GM LP5 injectors. 1500 dollars plus 800 dollar core charge for a …

Sep 7, 2021 · I bought a used 2018 2500HD Duramax L5P and a week after owning got a reduced engine power warning and got it scanned and received the P0191 code and took it back to the …

Jun 3, 2024 · L5P: - Glow Plug Control Module and PIP 5523 Hi there. I am just trying to get a discussion going with L5P owners that are having glow plug DTC codes (ie P1338, P1339, P133A, …

4 posts · Joined 2018 #17 · Jun 6, 2018 2018 L5P 117 Miles Injector 3 Problems Just took delivery of my 2018 Chevy 2500 LTZ L5P. I put 60 miles on the truck before the CEL came on after I hit the …

May 2, 2018 · New 3500 Denali bought new about 2 months ago. It has 1800 miles on it. while getting on the freeway at 35-45 mph relatively light acceleration truck stumbles I cant tell if its engine or …

Sep 27, 2024 · It was wrecked, it’s possible the doc or dpf or scr are broke and plugging the exhaust. After driving that first few miles it started plugging all flowing holes up. What’s your maf sensor …

Jun 10, 2021 · Wondering if any of you l5p gurus have some failure analysis input for me.So this truck came to me with a miss on one cylinder and a pop out of the intake,pulled the valve cover and found …

Jan 30, 2019 · That said, The L5P is a really nice truck in stock form, I was having second thoughts and actually went and test drove a Ford F-350 Platinum yesterday, Surprisingly (to myself)I appreciate …