This is the second 1st gen I've owned and it's nothing like the first.

I have been plugging my truck in since overnight temps have been seeing in the single digits at my house. Now, I have knocked the timing back down to stock, maybe just above, and turned the pump down a bit. But since the cold weather, this truck smokes like bon fire. Not black smoke either. On start up, it takes several cranks to get it fired and usually have to hold the accelerator pedal down a bit. It chugs and chugs until it seems like the other cylinders fire. Once it stays running for a minute or so it will idle fine but still smoke horribly until it gets to operating temp.

My old truck didn't, I rarely had to plug it in and it never acted like this one. It would blow a slight puff of blueish-white smoke and that was it. Is there something wrong? The injectors for some reason won't stay sealed anymore, could this be the problem?

 

I'd be looking for a air leak in the fuel system. Even at single didget temps it should fire on the 1st or 2nd cyl to hit compression. smoke on the otherhand is gonna happen in the cold. You should see mine light off at -40*.

 

i would like too, maybe you should make a video for us to see.

 

I'll see what I can do.

It ain't hit -40* yet this year and I don't have a dig Video camera-yet.... But I'll see what I can do.

 

It's not just in the very that it's smoking. Even when I get out of work at 40* or so it does it, along with the slightly hard start. Like I said the only leak that I have found are the piece of crap POD's.

 

make sure your grid heater is working

 

I can hear the relay click when the WTS light goes out.

 

Crank you timing back up,make shure your ksb is working too.

 

Check the fuel heater o-ring. They like to leak a bit. Also pressurize the tank a bit (about 5psi) and look at the fuel lines from the tank to LP.

 

My 89' did the same thing in the cold up in Maine. It ended up being a tiny hole in the fuel line just before the lift pump. Once I stopped it from sucking air it fired right up.

 

I should have said before, I already put pressure to the tank. No leaks to the LP. I couldn't see anywhere around the fuel heater leaking. And the KSB works, I had it hot wired before I did the timing. Unless it could have gone bad in the time since then. Thanks for the pointers though.

 

This may be your problem then......Leaking down on the high pressure side or a bad spray pattern.

 

Thanks man, I guess the only thing to try is new injectors.

 

Between the two of those there is plenty of white smoke potential. Where are the injectors leaking?

 

They won't seal into the head. I swapped them out of my parts truck awhile back, they were torqued to 44lb.ft. (I think that's what I remembered reading a Cummins manual somewhere along the line) when I put them in. They were fine for a 4K miles and in the past 2K I've tightened them twice and they are leaking again. They never leaked on the other engine.

I backed the timing down because it sounded rather "clattery".