About this library

Who we are

The Diesel Forum is a diesel troubleshooting library from the Dodge Off Road crew: experts and enthusiasts in the off-road and diesel truck industry since the early 2000s. We build it the way we wish forum threads worked: one question per page, plain answers, and sources you can check.

How we write these pages

Each page is built from manufacturer and industry bulletins, service information and specialist sources, with at least two sources behind the key points. We do not publish specs, torque values, codes or part numbers that we cannot back up; for those, use your service information. Where a claim comes from owner reports, we say so.

Dodge Off Road

Dodge Off Road builds suspension and steering parts for 1994-on Ram trucks. It does not sell engine parts, so you will see store links mainly on Ram front-end and towing topics. More about Dodge Off Road, or contact the store with fitment questions.

Photo credits

Free-license photos from Wikimedia Commons, credited below and in captions. Product photos are Dodge Off Road's own.

• Engine bay of a Ford Super Duty with the 6.4L Power Stroke V8 Turbo Diesel cover: Powerstroke V8 Turbo Diesel (6.4 L) as seen in a Ford Super Duty Dsc02833 (3291429118).jpg by cdolivei, CC BY 2.0; resized, metadata removed.
• Duramax LML diesel V8 display engine on a stand: 1.19.2011LML.jpg by Dana60Cummins, CC0.
• Soot-loaded diesel particulate filter element removed for cleaning: DPF vor Reinigung.JPG by Michael KR, CC BY-SA 4.0; resized, metadata removed.
• Bosch common-rail diesel fuel injector on a white background: Bosch common rail injector (cropped).JPG by Panoha, CC BY-SA 3.0; resized, metadata removed.
• Black 2014-2016 Ram 3500 Cummins crew cab dually towing a car-hauler trailer: 2014-2016 Ram 3500 Crew Cab Towing Cummins.JPG by Bull-Doser, Public domain.
• Green 1994-2002 Dodge Ram 2500 regular cab with the 5.9L Cummins diesel: Green 94–02 Dodge RAM 2500 regular cab - Cummins 5.9L Diesel.jpg by FLGALine1999, CC0.
• Blue Freightliner Cascadia sleeper semi tractor parked at a curb: Freightliner Cascadia.jpg by Oleg Yunakov, CC BY-SA 4.0; resized, metadata removed.
• Light blue Mack Anthem day cab semi tractor: 2024 Mack Anthem 6x4 tractor (Day Cab) in Light Blue, front right.jpg by Mr.choppers, CC BY-SA 3.0; resized, metadata removed.
• Red Peterbilt 579 pulling a white dry-van trailer: Peterbilt 579 Lone Pine 2018-04-07 California 01.jpg by Agnieszka Kwiecień, Nova, CC BY-SA 4.0; resized, metadata removed.
• Yellow Blue Bird Vision conventional school bus on a street: Blue Bird Vision School Bus BGCS12.jpg by deathpallie325, CC BY-SA 4.0; resized, metadata removed.
• Green John Deere 6R 185 tractor at a farm show: John Deere 6R 185 agra 2024 (DSC03350).jpg by MarcelX42, CC BY-SA 4.0; resized, metadata removed.
• Orange Kubota M6060 tractor working in a vegetable field: Kubota M6060 Traktor.jpg by JoachimKohler-HB, CC BY-SA 4.0; resized, metadata removed.
• Enclosed standby diesel generator set on a concrete pad: Caterpillar (Olympian) Generator Set.jpg by Gregsedits, CC BY-SA 3.0; resized, metadata removed.
• Silver 2014 Volkswagen Jetta TDI sedan: 2014 Volkswagen Jetta TDI, front right, 05-09-2023.jpg by MercurySable99, CC BY-SA 4.0; resized, metadata removed.
• Black Jeep Gladiator EcoDiesel pickup on a driveway: Jeep Gladiator (JT) ecoDiesel in black 1of3.jpg by CZmarlin — Christopher Ziemnowicz, a photo credit would be appreciated if this image is used anywhere other than Wikipedia., CC BY-SA 4.0; resized, metadata removed.
• White 2019 Nissan Titan XD PRO-4X pickup: 19 Nissan Titan XD PRO-4X.jpg by HJUdall, CC0.
• Black 2019 Chevrolet Silverado 2500HD LTZ crew cab: 2019 Chevrolet Silverado 2500HD 4WD LTZ Crew Cab Standard Box observe.jpg by Rjluna2, CC BY-SA 4.0; resized, metadata removed.
• Late-1990s Class A motorhome parked on a city street: 1998 Tiffin Allegro Class A motorhome.jpg by Oleg Yunakov, CC BY-SA 4.0; resized, metadata removed.

Fonts

IBM Plex Sans and IBM Plex Mono, SIL Open Font License, bundled with the site. No tracking scripts, no cookies.

Last reviewed 2026-10-19. General information only: confirm with your service information and a qualified diesel technician.