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  1. L5P - DuramaxDiesels.com

    Nov 17, 2025 · L5P Loud vibration when towing up hill larry.hayes.75 Oct 15, 2025 Replies 7 Views 158 Oct 17, 2025

  2. L5P fuel issue. - duramaxdiesels.com

    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 …

  3. Service Exhaust Fluid System/Reductant Pressure Low

    Feb 23, 2023 · I just purchased a 2018 L5P with 184k mi. I have a 'Service Exhaust Fluid System' message; followed by 'See Owner's Manual Now'; then '58 Miles Until 65 mph Max Speed'. I …

  4. 2024 Duramax issues? - DuramaxDiesels.com

    Jul 23, 2023 · And there’s been lots of software glitches in the infotainment system, locked black screens, GPS issues, map issues, and when I’ve used the new system it seems really slow to …

  5. DEF fluid level sensor issues | DuramaxDiesels.com

    Dec 23, 2024 · I have a 2017 2500HD LT L5P with a "DEF EMPTY" issue which the tank is COMPLETELY FULL. WTFO? The DEF pump was just replaced 5 months ago and has been …

  6. L5P P0191 Code & Fuel Pressure Sensor Replacement - Diesel Place

    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 …

  7. NOX sensor 2018 2500HD Duramax L5P - DuramaxDiesels.com

    Jun 6, 2024 · My truck is throwing a code for the Bank 1, sensor 1 NOX sensor. (Code # P2A00) Chevrolet is out of them nationwide and cannot give me any information on when they will get …

  8. GM Issues TSB For 3.0/6.6L Duramax Diesel Truck & SUV ... - GM …

    Nov 14, 2023 · Affected Vehicles: All models have a 3.0L Duramax (LM2) or 6.6L Duramax (L5P) Diesel Engine: Cadillac Escalade Models (2021-2024) Chevrolet Silverado 1500, …

  9. 2018 lift pump replacement - Diesel Place

    Jan 3, 2025 · Did you install another factory fuel pump, or an aftermarket lift pump? I'm looking for a high-capacity factory replacement. 2024 Chevrolet 3500HD Z71, LTZ, 4x4, 6.6 ltr. L5P long …

  10. L5P will barely start, then die Please Help - duramaxdiesels.com

    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 …