- 2025 Issues - Chevy and GMC Duramax Diesel Forum
I bought a 2025 GMC Sierra 1500 Denali Ultimate Duramax and overall, I love the truck It's an absolute joy to drive, and the engine is fantastic Unfortunately, with barely 3k miles on the truck, I've had significant two issues that have required return trips to the dealer Issue 1 - The DEF supply line was not properly secured to the DEF
- Duramax 3. 0 Should I buy? - Chevy and GMC Duramax Diesel Forum
Hello, new to this forum Thinking about purchasing a 23 or 24 GMC Sierra with the 3 0 Duramax I drive about 10 miles each way to work, mixed freeway and city Reading about several issues with this motor, oil leaks, long starts no starts, DEF issues, etc I really like this motor and the gas mileage, but a bit concerned by what I'm reading
- Chevy and GMC Duramax Diesel Forum
A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more!
- N242454440 recall for 10-speed transmissions | Chevy and GMC Duramax . . .
Notably, all affected units covered by GM Safety Recall number N242454440 are equipped with Duramax diesel engines Vehicles from the same nameplates and model years that are equipped with gasoline engines use a different transmission and are not affected
- P20EE P249D Service emissions system solved | Chevy and GMC Duramax . . .
I've got a 2015 duramax with the exhaust quality warning and limp mode pending, now only 50 miles away (4 mph) I've got a Innova 5160RS tool and have been able to command the DPF regen, but so far haven't seen that I can command the reductant fluid quality test
- Coolant control valve fixed - Chevy and GMC Duramax Diesel Forum
Hello folks, I successfully repaired my coolant control valve at home, no dealer fees, or WAITING for spare parts required…My 21 Sierra started throwing the P1098 code at 63k miles and blasting fans at 100% power For a while I could restart the engine and it would go away, eventually that
- L5P FUEL RAIL PRESSURE SENSOR LOCATION - Chevy and GMC Duramax Diesel Forum
Chevy GMC Duramax 2017+ L5P Forums L5P TSB (service bulletins, recalls, updates) Bodine1479 Hi
- L5P fuel rail pressure issue - Chevy and GMC Duramax Diesel Forum
2019 Chevy 2500 Had this issue for about 4 weeks now, random instances of P1089 code Since then I replaced the fuel pressure sensor since some said it could be a faulty sensor Still coding but only after a long deceleration period I have a CT3 and have tried to data-log when it happens but
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