1/1/2024 0 Comments Duramax turbo flutterUp top the truck cut's out as well, like's it's losing fuel. If I'm going up a hill it will flutter really bad to. It's alot more noticeable on my big tune than any others. If the converter lock's it will flutter, and it does this really easy. My father has a 2020 and that new transmission shifts so much smoother than my 2019. Second, the turbo flutter's really easy, if the truck's under a load, it will flutter. give it some time and enjoy that new 10-speed Allison transmission. I remember my truck got lower fuel mileage when new and slowly increased with time. Honestly, part of it is my fault because I drive 80 mph on the highway pretty much all the time.Īlso remember your fuel mileage will increase as you gain more total miles on your truck. Loaded with camping gear and towing our travel trailer I can get as low as 8 or 9 mpg on the highway thanks to a strong headwind. The only reason I get that high of fuel mileage with a lift and bigger tires is thanks to re-gearing my axles to a 4.30 ratio. This should cause the turbocharger to spool up quickly and create a loud fluttering noise. 04.5 GMC Sierra 2500HD SLT LLY, 4X4 CCSB, Bill's Custom Intake Stage 4, S&B Powerstack filter,LBZ MP, 4' turbo downpipe into 5' exhaust, 7' MBRP tip, EFI Live w/ dsp5, Resonator plug, PVC rerouted and plugged. Drive your vehicle around for awhile and then stop suddenly. Mine just started making a 'fluttering' sound that fades in and out but only when driving down the road at speeds between 40-75 mph. Tune your engine so that it is running at around 18 psi of boost pressure. With my lift kit and 35 inch tires I now average 12 mpg city and 15 mpg highway. Here is a 7.3L Turbo Diesel, (loosely based on the 7.3L Powerstroke) Parts 7.3 Radiator Stock 7.3 (2 RPM / 552 FT-LB TQ 1700 RPM) 100 HP tune W/ 2nd gear aggressive lockup (374 BHP/858 FT-LB TQ) Stock 4R100 4 speed Automatic (low stall, twin disk 3rd gear torque converter lockup) for stock power 7.3) Performance 4R100 4 Speed. Connect the exhaust pipe to the Lb7 turbocharger. crewcab, dually,Diamond Eye 4' Turbo Back Exhaust w/2. ![]() ![]() My 2019 averaged 14 mpg city and 17 mpg highway with the factory tires. 2017 Chevy Silverado 3500HD Crew Cab LT 8 Bed Dually 4X4 6.6 Duramax Diesel Deep Ocean Metallic Blue 2010 Jayco Jayflight 32BHDS. Updated Transmission Solenoids, 2000 model water pump, spin on fan clutch and duramax fan. ![]() All 2006 to 2019 Duramax light duty pickup trucks came with 6-speed Allison transmissions. turbo flutter noise around 900-1400 RPM with steady throttle. I know what turbo bark is but in sure of this sound. How do I know this ? If you look at my signature you will see that I have a 2019 Duramax. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. When I ease into the throttle and let off it makes what seems to be a flutter. Kindly note that your 2019 6.6L Duramax did not come with an 8-speed transmission.
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