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8.3 cummins white smoking and black when driving

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bayouhotshot

Seasoned Expediter
took off to do a load the truck started black smoking real bad and when its at a idle it white smokes is that just the injector and how much do thay run
 
greg334

greg334

Veteran Expediter
Well Piper may correct me on this one.

It could be an injector leaking but it is more likely a head gasket leaking. Is it running rough on idle or under a load?

I would first start with checking your oil to see if these is water in it. Then a smell test, if the white smells like radiator fluid. I would drain the fuel filters a bit to see if you have water in them - assuming you have two - but at least the one after the lift pump.

I just got another quote for 6 injectors at $155 each, but that doesn't include labor to R&R them.
 
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bayouhotshot

Seasoned Expediter
yes it is running rough on idle it smells like diesel the white smoke does like i said when you drive it black smoke rolls out
 
M

Mcarriers

Guest
Depending on the year of the truck the newer (2005) and newer injectors can run closer to $300 each. Try changing the fuel filters, be sure to use good filters and dump some 911 into the fuel tanks ( 1/2 gallon to 200 gallons of fuel). Then take it out for a good 50 to 60 miles of open highway. See if that'll clean out the injectors, this has worked for us before and might save you a lot of money and downtime.
 
greg334

greg334

Veteran Expediter
Wash the cylinder?

If it is a leaky injector, then yea you would wash the oil off the walls and may end up with fuel in the oil. It is a problem with the head gasket, you will see a drop in your coolant level, may not see anything in the oil (but always check that).

Thanks Mcarriers for that, I forgot it is winter.

Where and when did you fuel up last?

Did you use any additive?

If you have a davco filter/heater, I would add the 911 into the filter, draining some of the fuel off into a bucket.
 
davekc

davekc

Senior Moderator
Staff member
Fleet Owner
MCarriers has the best answer. Especially since it is cold. Change the filters and treat the fuel. If you bought fuel that has a high level of bio (namely IN & IL) then it will take a little more anti-gel. If it still idles rough (almost a miss) then it is likely a injector. If you are adding anti-freeze that could be an issue Greg mentioned, or if it seems your oil is rising (deisel mixing with oil) or excess is coming out of the blow by tube then it is again a bad injector, seal, or rings. A laptop hookup will answer most in a few minutes.
 
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bayouhotshot

Seasoned Expediter
davekc said:
A laptop hookup will answer most in a few minutes.
Click to expand...

i did that no codes and i got fuel at the flying J in baytown,TX yesterday and i do use 911 in the gray bottle i mix it a little strong i think its for 150gal i use that on 125gal
 
davekc

davekc

Senior Moderator
Staff member
Fleet Owner
You have to find or go to someone that has the Cummins software. You need a set up that can do a cut out.
A bad injector won't throw any codes.
 
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bayouhotshot

Seasoned Expediter
i was on the phone for ever today everyone is two weeks befor thay can look at my truck:rolleyes:i cant wait that long 2-3days max i had to give my loads away for the rest of the week:mad:
 
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bayouhotshot

Seasoned Expediter
took it to beaumont freightliner thay said its the injection pump $5,400 parts and labor:eek:$4,000 for the pump and $1,400 labor this is not a good way to start the year any body know ware i can get a cheeper pump
 
R

Refer Hauler

Expert Expediter
I did a quick internet search and found rebuilt pumps for $1295. However in my opinion the pump being bad is questionable, since you have said it is not throwing codes. take to an independent diesel injection service place get them to look at it.
 
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bayouhotshot

Seasoned Expediter
Refer Hauler said:
I did a quick internet search and found rebuilt pumps for $1295. However in my opinion the pump being bad is questionable, since you have said it is not throwing codes. take to an independent diesel injection service place get them to look at it.
Click to expand...

it has a code on it now when i took it to the 2nd shop it came on. Where did you find one for $1,295
 
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bayouhotshot

Seasoned Expediter
ya i did now it will die when you take off so its at the 2nd shop if thay both say thats what it is it must be it and thay also checked the timeing it will run 65mph down the hwy but smokes like a freight train
 
guido4475

guido4475

Not a Member
I'd take it to a Cummins shop and nowhere else.I always used Cummins in Fort wayne, Ind. They were awesome, and saved me a ton of money with my engines.It was worth running from Cleveland to there, they always made sure everything was perfect before
I left, and would get me in quickly when I needed to.If there is antifreeze in the oil, chances are you may need to get the main and rod bearings replaced as well, common practice.No one knows a cummins better than Cummins shops, although Bruce Mallison of Diesel Injection of Pittsbugh is extremely knowedgeable of Cummins engines.He will be able to help you out on the phone as well. Real nice guy.Best of luck to you in this.
 
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bayouhotshot

Seasoned Expediter
i got the money for a $1295 pump but i dont have the money to let the cummins shop do it 4,000 is just way to much money for me i just dont have it...............................
 
guido4475

guido4475

Not a Member
If your truck is finaced through a lender they may be able to amend your truck loan to cover this repair.I know Paccar credit will do this for any repair that will prevent the truck from moving.
 
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