Jan 27, 2019 · The “chugging / stumble” issue occurs with & without tow haul mode engaged on this downhill unless I manually downshift the truck to keep the rpm’s up. Sad that we have to engage …

Nov 30, 2024 · Just upgraded from a 2020 2500 with air bags to a 2025 3500. A few times while towing my loaded 30' enclosed V nose trailer, the truck felt like the front end was floating, (a very strange …

Oct 26, 2018 · Well unfortunately I have the known “chuggling” issue on my 2019 L5P Duramax. The issue has occurred half a dozen times and the truck only has 1,800 miles on it. It always happens in …

Mar 2, 2016 · P0336 and chugging Jump to Latest 29K views 19 replies 4 participants last post by jahush May 14, 2016 jtyson8602 Discussion starter

Jul 13, 2017 · When towing my toy hauler she cuts out repeatedly when underload, most noticeable when doing about 60mph and need to accelerate. Doesn't seem to do it on flat when just cruising, …

Dec 22, 2012 · White/blue smoke chugging and clearing up Jump to Latest 4.1K views 6 replies 5 participants last post by Dmaxster Jan 14, 2013 2

Nov 21, 2025 · I used my truck to run to hardware store last weekend and driving 35-45 mph through town and it starts "chugging" like it wanted to go into limp mode, but doesn't, but lost fuel/power for a …

Apr 12, 2017 · Lly "chugging" Jump to Latest 8.1K views 15 replies 4 participants last post by Alec S. Apr 26, 2017 Alec S. Discussion starter

Apr 15, 2014 · 02 chugging at idle Jump to Latest 5.4K views 4 replies 3 participants last post by chevittup Apr 18, 2014 ZeroSystem Discussion starter

Oct 3, 2014 · 01 LB7, only non stock is air intake.I was pulling an average size boat when I got a check engine light and lost power. I could ease it up to 50 mph but if I pushed it then back down to no …