Sep 5, 2022 · I’m looking to buy an ISL 8.8 or 8.9 engine with the common rail fuel system and without the DEF system. What are the best and worst years to buy? Also, any...

Feb 20, 2026 · Members with the Cummins 6.7 ISB engine on Freightliner chassis report confusion over oil capacity, as the manual often lists 12 quarts, but the dipstick reads low even after filling to that …

Jun 22, 2025 · The **Cummins ISL 425 HP** (often the ISL9 or ISL 8.9L, depending on year) is generally a **strong, reliable engine**, but like any heavy-duty diesel, it has some known issues …

Nov 1, 2005 · We are into our first long trip with our new 34 FDDS Alpine Coach. This trip we've traveled 1437 miles from Yakima to (at this time) Apache Junction, via Jackpot, Ely, Las Vegas, Indio and …

Feb 10, 2026 · Member Title: Cummins 600 ISX Turns Over Fine, Won’t Start Members quickly focused on the lift pump as the likely culprit when a 2008 Magna with a Cummins 600 ISX would crank but …

Aug 2, 2025 · From AI : Onan generator fault code 36 indicates the engine stopped without a shutdown command from the control panel. This often points to a fuel delivery issue, low oil pressure, or sensor …

Feb 14, 2026 · Members with extensive experience on the 5.9 Cummins engine generally agree that valve adjustments are rarely needed before 100,000 miles, especially if the engine is running …

Jun 5, 2011 · Cummins keeps a complete record of your engine specifications including pump and governor by engine serial# (only 8 characters long). Any subscriber, or anyone with access, to …

Nov 8, 2018 · It wasn't till the 2019 Cummins (new CGI block) you started hearing about engine failures. What “engine failures” are you hearing/posting about? I have had my ‘24 Ram 2500 w/6.7 CTD six …

Jul 8, 2017 · Not to bring up an old problem with Cummins ISL 400 engines, but I didn't know it was an old problem until we recently (June 2017) experienced catastrophic engine failure and started …