5 9 Cummins rough idle white smoke

I have white smoke and rough idle. Every now and then it seams to stall for just a second at take off. Started blowing white smoke and running rough at start up. Thought maybe was due to colder temps. But did it the other day when it was degrees outside temp.

Dies if given to much fuel on idle or driving, then hard to start and blows white smoke and rough idle. Only does this with a cold engine. Has a new overflow valve. It does start after about seconds, but the smoke continues, as does the rough idle , it smooths out when revved to about 1k.

White smoke is unburnt fuel. Could be a stuck or leaking injector too. Re: white smoke and rough idle the only funny part about this is that everyone i talk to says head gasket but all along ive been saying no and nobody believes me but the bad thing is cummins you described it exactly and that concerns me. On the common rail Cummins , white smoke is more characteristic of an injector problem.

If the exhaust smells almost like bug spray, it is. TDC and plunger lift to determine timing. Injector and poor fuel problems can typically be cleared up by treating the truck with Diesel Extreme. In this article we’ll troubleshoot low power, or the engine just not running right. If you start the engine, and immediately floor it, it will get to a. This occurred for three days then ran fine without any idle problems.

On day five, I cranked the engine over and immediately started blowing white smoke and was obviously not operating smoothly on six cylinders. Troubleshooting Cummins Diesel Engines. Replacement Injectors. If the smoke clears in less than minute, this would be normal depending on temperature and altitude. Blue white smoke that burns your eyes, is un-burnt fuel, cold temperatures, high altitude and excessive idle time all mean cold combustion.

Truck was let go back to the credit union from the man who bought it originally from the dealer. He said he didnt want the truck because they wouldnt fix the problem with it. Excessive smoke from exhaust!

Highly unlikely something serious like broke motor mount since it happened when empty and under normal strain. We have installed an air intake and exhaust, a Smarty Jr. This continued whether warm or cold. Returned the programming back to stock, tested power to the intake heater.

Rough Idle, Warm Engine ,. Liter B Series Engines;. Also had a few episodes of white smoke and rough cold-start idle a while back. Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector.

Causes of Diesel Engine Smoke - By Color. A brand new diesel engine running at full load will experience a little bit of blow-by upon startup. Blow-by is a condition where diesel fuel, air and vapor are pushed past the rings into the crankcase of the engine. It has under 70k miles.

My wife and I were driving home from our annual Christmas break trip to Arizona. We were pulling a car trailer that had our Suzuki Sidekick 4Xon it that we had used to explore around the desert with on our trip. EGTs going way past the safe zone.