Cummins white smoke on startup

I get white smoke at start up , when taking off in 2nd and when I goose it on the highway. My FR pressure is good. What could be causing this? I figured if it was a bad injector it would run like crap and get crappy mileage.

Within a few months after the release of the 25 “white smoke” suddenly became a thorn in my side. The engine would start to suffer from slow start-up with one or two cylinders initially firing. They smoked on start-up and for minutes after until broker shut them off. He says its normal for the Cummins mechanical diesels to emit white smoke until well warmed up. Is this true with your experience?

In the forum you will find an informative tech area, a place for Member’s journals, Vendors with special Members pricing, and more! Lasts about mins pretty rough runninh until warmed up then seems to run great. Every now and then it seams to stall for just a second at take off. I have white smoke and rough idle. This video should only be used as guidance and not as an absolute-guide.

If you don’t know what you are doing. Diesel engine white smoke emissions during startup Sometimes diesel engines emit a white smoke while starting. The white smoke is due to unburnt fuel caused by improper heating.

Worst then a steam shovel! As soon as you move the truck it disapears. Never needs water in the radiator and burns no oil. This truck has been doing this for years. If this is your first visit, be sure to check out the helpful FAQ and click REGISTER to.

It does clear out and doesnt seem to have any loss of power while driving. Tried injector cleaner. Can one injector be bad and replaced or do all? They do not completely stop spraying fuel when they are OFF.

So if it would idle for 10min the smoke would disappear because the high temp would compensate for the lower compression. L Cummins engine, and I am having some problems. Sometimes when it is col the truck sputters and blows white smoke , and it takes a few minutes to clear out. Normally, it would happen at startup in cold weather with lower compression engines and retarded timing. White smoke is caused by either unburned fuel or coolant.

Injector and poor fuel problems can typically be cleared up by treating the truck with Diesel Extreme. I've had trucks with bad head gaskets and they would smoke white at start up even on a warm day, but would clear up when cylinder temps would come up. If the exhaust smells slightly sweet, it is. This will cause white smoke , along with the idle issue. L Fuel Knock, White Smoke Need some help with an Cummins 6. The truck was tuned months ago and had been running with no problems until about a week ago.

The owner said the truck started smoking black any time he was on the throttle and occasionally he would get a fuel knock along with white smoke. We are the premiere place for 1st gen and 2nd gen Dodges as well as a great source for newer models as well.