2015 GMC Sierra 1500 fuel system problems

Filed Jul 9, 2025 · Fuel system · LA

fuel pump losses prime overnight. gas sprays from fuel line onto top of fuel tank. problem was brought to my attention by a repair shop.. found several instances listed on YouTube of this problem

Filed Dec 2, 2024 · Body, Fuel system · MA

Cross member holding file tank rusted through causing the fule tank to not be supported and shock mounts no longer support the shocks to frame causing shocks to bounce around with possibility to puncher fule tank or lines Also rear cross member that holders electrical components rusts off Excessive rust on top of fule tank causing a inability to make repairs without replacing fule tank in entirety

Filed Jun 18, 2022 · Engine, Fuel system · CA

62,000 MILES. P0307 error. Replaced spark plugs, coil. head removal, lifter replaced and now another bad lifter. Faulty Active Fuel Management Lifter (AFM Lifters) that results in the Valve Train Defect. In shop for lifter repairs.(2nd time) Cost is $3000. Well maintained truck with all required service completed. Never even towed anything. Vehicle should not have these issues with this low mileage.

Filed Sep 16, 2020 · Fuel system · 15,786 miles · SD

Fuel gauge reads empty all the time. Was working, after sitting for 2 weeks, it didn't.

Filed Dec 10, 2019 · Fuel system · 50,000 miles · NY

When driving about 40 to 50 MPH the truck shakes like it has a bad cv joint on your driveshaft and when I bought the truck I took it in for this problem and the dealer said it's normal due to engine shutdown of cylinders. So I lived with it when my warranty ran out I got a check engine light due to same problem but now the dealer said I need new fuel injectors all of them are bad per dealer and to replace was 1500 dollars. I feel this was original issue and want to see if other customers are getting same bad issues

Filed Dec 4, 2019 · Fuel system · 44,000 miles · CA

Tl* the contact owns a 2015 gmc sierra 1500. The contact noticed a strong odor of fuel inside the vehicle and observed fuel leaking underneath the vehicle. The vehicle was taken to rotolo chevrolet (16666 s highland ave, fontana, ca 92336, (909) 333-6924) where the contact was informed that the fuel pump and lines needed to be replaced; however, the parts were not available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 44,000.

Filed Sep 24, 2018 · Fuel system · 37,000 miles · NY

I have fuel return line leaking gas is this covered under gmc warranty

Filed Jul 2, 2018 · Fuel system, Seat belts · 106,000 miles · TX

Truck will not change gears and sputtering. Bad gas mileage and not wanting to start.

Filed Oct 15, 2017 · Fuel system · 10,000 miles · TX

When accelerating at a very slow speed the engine seems to misfire or sputter and then the engine increases RPM and the truck accelerates as expected. Overall the engine lacks power and there is loud clicking sound that originates from the engine compartment area. I spoke with service manager at gmc and I was told that clicking sound was normal and gmc was working on the acceleration problem.

Filed Jun 25, 2016 · Fuel system · 30 miles · NH

When accelerating on an incline or hill or trying to pass traffic on the interstate the truck hesitates or stutters. This seems to happen when applying light acceleration. It almost feels like the transmission is having difficulty finding the correct gear. This is apparent to both driver and passengers. This has occurred since the truck was new and seems to be getting worse. The truck currently has 13,000 miles.