Smoking During Regen | Cummins Diesel Forum
Jan 3, 2025 · "Excessive smoke during regeneration" on a diesel vehicle typically indicates a problem with the Diesel Particulate Filter (DPF) system, where the filter is trying to burn off accumulated soot during a regeneration cycle, resulting in more visible smoke than normal, often due to issues like clogged filters, faulty fuel injectors, or driving ...
Excessive black smoke at idle | Cummins Diesel Forum
Dec 17, 2024 · My sons truck that I described started this morning blowing lots of black smoke, engine feels lugged down, and the throttle pedal is unresponsive. Does anyone have experience with this issue?
Excessive black smoke stock truck | Cummins Diesel Forum
Jul 2, 2016 · The truck fires right up with no issue, idles smooth and runs great (as far as I can tell, remember I am new to cummins). However the truck black smokes quite a bit any time I up shift or even pull a semi steep incline. At idle I can just bump the throttle and puff smoke without effort.
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.
Smoke during regen | TruckersReport.com Trucking Forum | #1 CDL Truck ...
Feb 15, 2023 · White/greyish smoke is usually a sign of a degraded DOC. Clean or replace the injector and recheck for temp increase during a forced regen. If temps are really lazy to build between 500-700 and this is when it produces the smoke, it is DOC time.
Smoking Cummins 855 | TruckersReport.com Trucking Forum | #1 CDL Truck ...
Feb 10, 2018 · (Short and sweet), I’m working on a 89 model year Cummins 855 NTC 444 STC. This engine has “smoked” for its known history (history starts at an 800k overhaul). I now have multiple misses at Idle, they vary from cylinder to cylinder each time it’s started, and now she smokes like crazy.
Lots of smoke when cold...normal? | Cummins Diesel Forum
Nov 10, 2011 · White smoke (raw fuel) with a hint of blue (raw fuel smoke will have a blueish tint in the cold) is somewhat normal. at temperatures above freezing, it is not. unnecessary amounts of smoke could be caused by one or both of the grid heaters not functioning.
White Smoke Issue | Diesel Truck Forum - Oilburners.net
Jun 6, 2022 · White smoke when cold is common on an aging engine. It normally clears when warmed up. If you didn't have white smoke with the old injectors; then you upgrade the injectors and you suddenly do....
The 3 Types of Diesel Engine White Smoke To Watch For
Here is how to decode the signs your diesel engine is giving you. 1. White smoke on a cold start, and then it disappears as the engine warms up. This is very common. It will often happen at startup in cold weather with lower compression engines.
White Smoke - Very Rough Idle - Need Urgent Help!
May 30, 2023 · I left for work the following day, and about 20 miles into my commute, the truck started running rough and would shudder upon any acceleration at any rpm, along with white smoke. A pretty moderate amount. I got the truck back home, pulled the lines and rail back off, reinspected them, and blew out the lines with brake cleaner and compressed air.
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