miss and white/grey smoke | Cummins Diesel Forum
Nov 16, 2008 · If white smoke is still visible after the engine has warmed up, the engine may have one or more bad injectors, retarded injection timing or a worn injection pump. Low compression can also be a source of white smoke.
Blue smoke/miss fire at idle | Cummins Diesel Forum
Aug 28, 2021 · The smoke will stop but it will sit there and miss every now and then until it starts warming up and eventually it will run smooth. If I don't let the unit warm up to above say 60°C coolant temp and I'll start driving, I'll notice blue smoke coming out the exhaust especially when coasting down a hill doing about 60km/hr.
White smoke problem | Cummins Diesel Forum
Oct 20, 2023 · There is a light haze of white/grey smoke and when you get on the the throttle it smokes like crazy. Then it cleans up when at operating temperature. I’m gonna try to cut out each cylinder one at a time by loosening the injector fuel line and see if it stops smoking.
Cummins L10 smoking and missing - The Diesel Stop
Aug 26, 2017 · White smoke is caused by either unburned fuel or coolant. If the exhaust smells almost like bug spray, it is unburned fuel. Injector and poor fuel problems can typically be cleared up by treating the truck with Diesel Extreme.
Common Symptoms & Fixes: 5.9 Cummins Leaking Injector & White Smoke
May 5, 2004 · • White smoke during no-load engine acceleration between 2800 and 3000 rpm. 2500 rpm. May be accompanied by white smoke. stumble when engine is started after an extended cold soak, 8 hours or more. engine that has not yet reached normal operating temperature. when a manual 2nd gear downshift is selected.
Blue smoke - The Diesel Garage
Jan 23, 2008 · Bad valve guide seals show oil smoke and more after idleing warm. Blue smoke on cold idle is most often carbon behind the rings, one of the things that can be helped with additive. Do not over medicate because the cam can be wiped out.
Periodic consistent miss after warming up... - Diesel Place
Apr 14, 2008 · The miss only occurs after an inconsistent period of time and/or distance. Once the miss starts, the engine has this hard miss (with codes 91 and 93 active) regardless of RPM, load, or throttle position. In addition, during the miss the trucks blows inky blue-ish gray smoke (only while missing) which sure seems like raw unburnt fuel.
White smoke startup / Sputter at high RPMs | Cummins 4BT & Diesel …
Oct 27, 2015 · I'm getting white smoke during startup which I expect some but it seems to be a bit more than normal, once it's started the white smoke goes away except for a light white haze during idle, both when its cold and when its warmed up. Runs great and doesn't blow any white smoke when I drive, well at least I can't see it.
White smoke and misfire at high rpm - Diesel Place
Mar 19, 2010 · On high rpm (floored) in neutral it misfires and produces excessive white smoke. It starts to misfire at lets say 75-80% throttle. I searched the forum but could find any on white smoke at high rpm. Do you guys have a clue what's causing this?
Diesel Smoke Diagnosis Guide – White, Grey, Black, Blue
There are three causes of white smoke from a diesel engine. The problem is either raw diesel fuel passing through the exhaust completely unburned or water/coolant entering the combustion chamber or the temperature in the combustion chamber is too low.