White smoke

[robert ibe]

Hi all this is my first post here. I just finnished driving from galveston tx to las vegas nv it took 30 hrs streight through, I let the truck sit overnight and when I started it in the moning it was blowing large amounts of white smoke and running very rough, it cleaned up and began running as it should after 4 blocks. Oil looks good as I changed it and the filter just before the trip, radiator is still full, fluid is clean and no bubbles, so I would rule out the head gasket. I've had the truck about 8 months and put 8000 on it in that time. this is the first time this has happened. Any sugestions as to what might be causing this?? . I'll see if it does it again today after sitting all night and report back.

Thanks
Robert

[gear jammer 91"]

white smoke could also be caused by a timing issue. I wouldn't think your timing would change on it's own without you messing with the pump. The other thing that might cause it is cold temperature outside and non functional grid heaters. I think it would need to be around freezing or maybe colder to get white smoke in the morning. If it is that cold in the morning were you are try plugging in the block heater. Hope some of that helps.

[beerboy81]

other then the white smoke, is there any way you could tell if the grid isn't working?? im still investigating if its the grid OR the relay is shot??

when i first start it up cold, i can hear and feel a "CLICK" like every 10-15 secs and the battery gauge goes back n forth every click. i thought that was weird! any ideas, anyone?

[peobryant]

other then the white smoke, is there any way you could tell if the grid isn't working?? im still investigating if its the grid OR the relay is shot??

when i first start it up cold, i can hear and feel a "CLICK" like every 10-15 secs and the battery gauge goes back n forth every click. i thought that was weird! any ideas, anyone?

The click is the grid heaters cycling. Completely normal.

[robert ibe]

Thanks for the replys. It did it again this morning but not as bad.The grid heater is working as it should, its not realy getting cold around here ,in the 50s at night. I doubt it is a timing issue unless the ve pump is going south which is what I,m leaning toward more as I eliminate other potential sources. I changed the fuel filter today with no changes. The ve pump started leaking a little a few weeks ago out the vent tube, just a drop or 2 not enough to make a mess. The truck started to make a little rattle noise before I left tx. (I hear things most people dont as I was a machinest before I retired and we usualy detect things going wrong when running a machine by sound before we ever see a problem) The rattle has gotten worse and I can only here it when I'm in the cab. The sound is definatly coming from the engine compartment and not the dash or inside the cab. I took a steth to the engine before I left tx and couldnt locate the sound.Other things I have noticed is my milage has droped from 19.5 to 17.1 I also checked and adjusted the valves before I left tx and I checked them again today and all are still good. I have a friend who is a heavy equipment diesel mech and he seems to think it is a fuel leaning problem. I,ve been wanting to put a new set of injectors in for better fuel milage,so I might go ahead and do that and put in a new ve pump while I,m at it. I will do the pump first and then the injectors so as to isolate what fixes the problem but I have a few other things to check first like the ksb solenoid or the themo switch that controles it.

Robert

[KTA]

It sounds like you are getting air in the system from somewhere. Anyplace fuel leaks out is a place air can get in when it isn't running. Air is compressible, diesel fuel is not, so it plays havoc with lots of things when it gets in to the system. You can start with fixing your pump leaks, but I have also seen lots of problems back at the sender on the fuel tank getting rusted and letting air in.

[cummins king]

It sounds like you are getting air in the system from somewhere. Anyplace fuel leaks out is a place air can get in when it isn't running. Air is compressible, diesel fuel is not, so it plays havoc with lots of things when it gets in to the system. You can start with fixing your pump leaks, but I have also seen lots of problems back at the sender on the fuel tank getting rusted and letting air in.

^^^^^x2^^^^^

[robert ibe]

Well I fixed the white smoke ruff running problem. It was a little corrosion on the electrical conector to the ksb solenoid.Thanks for your replys and help
I,m still going to replace the ip down the road and the injectors with the goal of increasing milage, any suggestion in this department would be apreciated.I'm going to keep the old ip and reseal it for a spare.

Robert

[beerboy81]

ksp? ip? i have white smoke sometimes when i stomp on it

[peobryant]

ksp? ip? i have white smoke sometimes when i stomp on it

You sure it isn't a grayish haze?

[beerboy81]

actually, now that you mentioned that.. it IS more of a gray than white. but what causes that instead of black?

[willhill06@live.com]

What is The KSP?

[PToombs]

KSB? It the cold start solenoid on the side of the IP. It advances timing about 7* when the thermostatic switch turns it on.

[dpuckett]

The white smoke when cold led me to believe KSB and electrical supply thereto, but he got it figured out before I could post.

The MPG drop and fuel leak are likely related. I'd bet you have some internal gunking- nothing abnormal for the years, but not good, either. Getting a new pump (or yours rebuilt) and the injectors reset would give you more MPGs.

Daniel

[UnCommonRail]

I have a 91 12 valve, pump turned up, cold air intake, NV4500, and a ground stock pin. I recently started having some issues with my rig. It starts and idles just fine, but as soon as I start to give it fuel it pops and blows white smoke. I changed my fuel filter and it ran great for aabout ten mins and started popping and blowing the white smoke agin. I figure I am getting air in my system some where, any suggestion would be greatly appreciated though..