Dan Brooks

Over the past few months I've noticed the truck will run rough when started first time for the day. It normally clears up after a few seconds, but when I started it tonight it felt like it was running on about three cylinders, and when I gave it some throttle it really started shaking. It was also belching out TONS of smoke.eek: It smoothed out some after 30-45 seconds, and once I drove about a mile it was fine.

The temp when I started the truck tonight was around 45*, but the WTS light didn't kick on and the grid heaters didn't cycle. They are working, though, because they cycled yesterday when I started it the first time for the day. It seems like it runs fine if the grid heaters kick on, but without them it runs a little rough. Tonight was the worst it's been - normally it isn't very noticable and is only for a few seconds.

Any ideas?

Den

You might have the problem I have. Below the pump is the KSB solenoid. There should be voltage to that until the truck gets warmed up. Mine isn't fuctioning.

Check out
https://www.dieseltruckresource.com/...threadid=57187

Den

rebal

could be injector-s leaking off and time for new ones

Dan Brooks

Turned out to be a bad temp sensor for the KSB solenoid...at least I think that took care of it. It'll take a few more days to see if the problem comes back - so far so good. Thanks Den!

Den

Good deal!

I just replaced mine sunday and it works good. When the engine is cold and you just start it, jump out and disconnect the lead to the KSB solenoid. You should hear the difference if it's functioning correctly. I could see the difference at the tailpipe too.


Den