you got to buy a kit to get rid of it and to keep it from setting a code. no idea on how easy it is.

 

Other than one bolt that is burried (open end wrench and long strong fingers will get it), it's straight forward to take out and sepperate the solenoid from the valve itself. If you take the solenoid off you can push the valve in and out to clean everything including the solenoid, BUT that's not to say the solenoid itself isn't sticking internally. It's worth a few hours in the garage to try though. It would only cost you some cleaner, but it would probably be better if you just replace it.

 

I have an 04.5 LLY and I switched to the 06 LBZ air intake, had the computer reflashed, I was running the stock AC DELCO air filter in it and I would blow black smoke like I had a huge tune in it, I tried putting a WIX filter in it, it did the same thing, after about a week, I was seriously down on power, my filter life thing on the intake was at 80% with a new filter. I would flip the filter around and it would run fine for about 50 miles, egts would go way up smoke would come back and I was back down on power but still no check engine light. I put a K&N filter in it (I hate K&Ns) and it ran like a bat out of hell. I don't have any tunes in the computer never have, but I think I was sucking the filter closed.

 

that sounds pretty fishy

K&N filters can be the cause of MAF sensor malfunctions due to oil contaminating the sensor

 

That may be true sometimes, but my truck has had an oiled K&N filter for almost 100,000 miles with no problems

 

wow, 5 year old thread. digging up the grave are you?

 

My diesel instructor told me a story that when you get too much fuel into a cylinder it will discharge the excess carbon on the exhaust stroke. Maybe you are getting too much fuel.

 

Is this for reals?

You know now that I look back at this thread it honestly sounds like a boost leak... hmmm how times have changed